HISTORIC NOTE
The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)
site maintained by the Florida
Cooperative Extension Service.
Copyright 2005, Board of Trustees, University
of Florida
Agricultural Research Center, Ona
Research Report RC-1984-1 January 1984
1983 CLIMATOLOGICAL REPORT
1/
C. L. Dantzman-
This report gives a summary of the weather data for 1983. It also lists
the extremes in daily temperatures from 1944 and the extremes in daily
rainfall from 1942 to the end of 1983 for the Agricultural Research Center at
Ona, Florida. The station is located 82055' W longitude and 27026' N latitude
in southwest central Florida, approximately 45 miles east of the Gulf of
Mexico and 100 miles west of the Atlantic Ocean. W\ RBV
The weather instruments thermometer and hygrothermog aph were housed iA,*1
a weather box located four feet (122 cm) above ground level. \.t.CSer~' -
thermometer was housed at ground level to record minimum temperatures at that
elevation. Weather observations were made daily at 9:00 a.m., unless
otherwise noted, and cover the period following the previous reading.
Maximum and minimum temperatures and rainfall for each day for 1983 and
extremes for the period 1942 to and including 1983 are listed on pages 4
through 15. A comparison of 1983 rainfall with the 1942-83 average is given
on page 16. Temperature frequencies for maximum and minimum values are given
on p. 17, and a summary of average maximum and minimum temperatures by months
is presented on page 18.
1/ Associate Soils Chemist, Agricultural Research Center, Ona, FL 33865.
Rainfall, 1983
The total rainfall for the year 1983 was 60.39 inches (153.39 cm). This
was 6.62 inches (16.81 cm) above the 1942-83 average of 53.77 inches (136.58
cm). Excess rainfall was recorded for January (1.30 inches or 3.30 cm),
February (5.72 inches or 14.53 cm), March (4.23 inches or 10.54 cm), April
(0.09 inches or 0.23 cm), June (1.05 inches or 2.67 cm), November (1.04 inches
or 2.64 cm) and December (3.61 inches or 9.17 cm). Deficit rainfall was
recorded for May (0.63 inches or 1.60 cm), July (5.33 inches or 13.54 cm),
August (3.04 inches or 7.72 cm), September (0.42 inches or 1.07 cm), and
October 1.00 inches or 2.54 cm). There were 163 days of measurable rain (0.01
inches or 0.03 cm or greater) during the year. The longest period without
rain was 12 days which ended May 17, 1983.
Temperature, 1983
The highest temperature recorded during 1983 was 96 degrees F (35.60C)
and occurred on July 19, 1983. The lowest temperature was 23 degrees F
(-5.0 C) and occurred on December 26, 1983. Temperatures below 40 degrees F
(4.4 C) were recorded 15 times: 7 times in January, 3 times in February, 1
time in March, 1 time in November, and 3 times in December. The last frost of
the 1982-83 winter season occurred February 9, 1983 (35 F or 1.67C) and the
first frost of the 1983-84 winter season occurred December 25, 1983 (26 F or
-3.3C).
Note: Weather observations were made at 8 a.m. from June 1, 1942 to August 1,
1957; at 4:30 p.m. from August 2, 1957 to January 1, 1962; then 9:30 a.m.
until the present time.
Daily records from July 152 through June 1953 were missing.
1942-1983 Weather Summary
The highest temperature for the period 1944 through 1979 was 103 degree
(39.40C), and was measured May 31, 1945 and June 1, 1945; the lowest
temperature during this period was 18 degrees (-7.80C) and was measured
January 13, 1981. When minimum temperatures drop below 600 F, the growth
decreases for most sub-tropical grasses. The earliest measurement under 600 F
(15.60C) in the beginning of the cool season was September 27, 1956.
Temperatures below 600F (15.60C) occurred in October in 34 of 39 years. The
latest measurement of a temperature under 600 F (15.60C) at the end of the
cool season was June 15, 1950. This temperature occurred in June 11 of 39
years.
Ground frost is generally present when the official temperature is 36 F
(2.20C) or lower. Over the 1944-1983 period the first frost of the cool
season occurred as early as November (November 4, 1966) to as late as February
(February 20, 1972). The last frost of the cool season has occurred as early
as January (January 14, 1948) to as late as April (April 8, 1950, 1971).
1983
Temperature
Date Max
(F)1/
Ground
Min
January
1942-83 Extremes
Temperature (OF)
Rain /
Inches
Maximums
Highest 'Year Lowest Year
Minimums
Highest Year Lowest Year
iI
1
1
1
1
55,5
59
55
4 59
2 48
54
60
56
2 51
47
46
49
47
47
48
49
.47
51
46
49
42
50
4 57
56
55
59
1 54
58
56
75 55
56
43
1949
1949
1958
1979
1956
1980
1980
1970
1970
1970
1970
1982
1981
1948
1948
1978
1959
1965
1957
1977
1971
1960,6
1946
1966
1963
1968
1968,
1966,
1978
1978
1.966
L949
56,7:
1971
L962
197'
196:
1949
197(
195(
197(
196!
198
198
198
1951
1977
195
197
198
197
197
197
1961
196'
195
196
195
197
196
1957
195
1,77
56 0.
,80 0
1
79 1.
0
0
56 2
0
0
0
1
1
1
0
0
78 0
0
,81 0
0
0
1
1
81 1
1
0
1
0
0
0
78 1
0O
Av. 70
Range
Total
1/ 'OF
82
- 32
1957
1977
1982
1981
-= o
Inches
x 2.54
= cm.
Inc
Rai
Max
2.1
February
1983 1942-83 Extremes
Temperatures (Fo)i/
Ground
Min
Date
Temperature (F)
n
Rain-/
Inches
Maximums
Highest Year Lowest Year
m
82
59
Minimums
Highest Year Lowest Year
n
Av.
Range
Total
2.00
8.38
1957
1947
1959
1969
4.1:
OF 32
= oc
Inches
x 2.54
= cm.
,74,75,
,56,57,
1982
1949,57
1956
1982
1949,57
1957
1949
1949
1959
1959
1959
1959
1949
1949
1944,75
1961
1957
1961
1961
1944,61
1945
1962
1962
1962
1971
1962
1944
1966
1980
1951
1951
1966
1963
1963
1978
1947
1947
1971
1973
1955
963,57
1971
1958
1958
1958
1958
1978
1964
1956
1978
1973
1968
1967
1974
1963
1964
1957
1973
1957
1959
1982
1982
1982
1975
1982
1982
1981
1954
1960
1965
1969,82
1959,82
1981,82
1981
1956
1975
1945
1961,79
1979
1975,79
1979
1959
1959
1959
1976
1965
1980
1976
1958
1947
1966
1978
1980
1968
1947
1971
1955
1955
1958
1971
1971
1958,77
1977
1969
1958,60
1977
1977
1978
1964
1968
1967
1974
1968
1964
Inch
Rain
Max
0.32
1.2E
1.54
0.5E
2.94
0.91
1.41
4.1]
1.1C
1.34
0.5:
0.41
2.0(
0.5(
1.02
1.25
1.55
1.4;
0.82
1.5(
0.9j
0.7'
2.0:
1.2:
1.3(
1.7:
1.5
2.0(
0.0:
March
1983
Temperature
Ground
Date Max
1942
(OF)/
2/
Rain-l
Inches
-83 Extremes
Temperature (oF)
Maximums
Highest
Year
Lowest
*. -*m a A.
Incl
Minimums
Rain
1961
1945
1961
0.00
0.00
0.00
0.00
0.01
0.00
0.02
0.00
0.00
0.00
0.00
0.02
0.50
87 45,48,52,
88 1961
90 1961
89 1961
88 1950
87 1974
88 1974
88 1948
88 1968
88 1948
90 1956
89 1945
91 1945
1945
1945
1945
1945
1950,77
1950
1952
1946
1949
1949
1974
1950
1949
1947
1965
1977
1968
1980
1980
1971
1960
54,62,65
1961
1969
1957
1978
1948
1965
1948
1963
1963
1961
1983
1950
1958
1964
1952
1983
1969
1968
1971
1969
1954
1959
1959
1981
1956
1965
1983
1968
1968
1977
1969
1955
1955
1966
1950
1956
1968
1980
1980
1971
1960
1954
1962
1971
1950
1961
1949
,73,80
1973
1946
1952
1952
1963
1946
1965
1965
1951
1944
1957
1944
1944
1958
1948
1958
1947
1962
1956
1962
1958
1971
1960
1962
1950
1969
1980
1944
1950
1970
1951
1972
1968
1956
1971
1962
1955
1962
1971
Range
Total
1946
1955
73
1972
1980
- 32
Inches
= cm.
,(
0
SII
II
(I
Ii
.1
t
:
I
I
fi
1.
:!
,(
t(
.:
Vaor
I
Year
hgiH e s t
YeFar
T.nwp t
1
1983 April
Temperature ( F)-
Ground
Date
Rain2/
Inches
0.02
- -
0.13
0.01
- -
- -
a--
- -
0.10
1.88
-- -
- -
- -
- -
-- a
0.03.
- -
- -
0.09
-0-
- -
- -
-- -
0.20
-- a
- -
- -
- -
- -
- -
1942-83 Extremes
Temperature(oF)
Maximums
Highest
Year
Minimums
Lowest
1974
1974
45,49,56,74,75
1945,74
1950
1945,47
1947,48
46,65,68
1948
1946,75
46,62,75
1965
1945
1945
1945
1945
1945
1945
1944
1944
1944
1944,82
1968
1945,68
1945
1945
1945
1945
1968
1949
Year
1950
1980
1958
1944
1951
1966
1950
1970
1950
1972
1973
1973
1951
1951
1959
1950
1952
1983
1983
1983
1983
1962
1954
1982
1983
1983
1948,7
1978
1973,8
1965,7
Highest
Year
Lowes t
1970
1959
1954
1973
1957
1982
1964,83
1957,83
1982,83
1961
1944
1963
1947
1947,80
1947
1944,47
1944
1969
1957
1959
1959
1944,45
1945,47,83
1971
1971,46
1967
1971,45
1947
1947
1947
Year
1964
1956
1976
1944
1975
1975
1950
1950
1971
1974
1977
1973
1950
1961
1950
1950
1962
956,8
1962
1956
1961
1950
1950
1950
1974
1983
1977
1977
1977
1977
Av.
Range
Total
1/ OF
1.88
2.46
1945
1950
1947
1950
- 32
Inches
x 2.54
= cm
I
]
I
(
(
I
4
(
(
I
4
1
4.
-I
1983
Date
Temperature (F)-1
Ground Rain2/
ax Min- Min Inches
1942-83 Extremes
Temperature (UF)
Maximums
Highest
Year
Lowes t
Year
Highest
Minimums
Year Lowest
Year
0.00
0.00
0.00
0.00
0.12
0.00
0.00
0.79
0.01
2.35
1975
1975
1950
1950
1950
1955
1955
1950,75
1975
1975
1955
1955
1967
1967
1967
1945
1963
1978,81
1944
1963,80
1950
1949
1949
1949
1956,60
1949
1949,63
1962
45,65,66
1945
1945
1969,72
1963,64
1982
1963
1964
1944
1944
1958,60
1960
1960,82
1,75,77
1977
1977
1960
1976
1951
1973
1973
1979
1979
1972
1976
1958
1976
1970
1981
1979
1972,81
1972
1960
1970
1971
1967
1964
1978
1954,56
1956
1946
1967
1973
51,57,73
1966
1959
1971
1954
1972,76
1981
1981
1946,80
1969
1952
1952,55
1957
1958,55
1958
1947
1958
55,57,69
1959
1982
1982
1959
1968
1945
1971
1945
1945
1945
1982
1971
1960
1967
1969
1981
1952
1960
1960
1955
1973
1945
1967
1979
48,49,72,77,79
1973,77
1961,72
1971
1967
1979
1979
1967
47,49,72
1971
1971
Av. 86
Range 92
Total
1/ OF 32
1.8
2/ Inches
2.35
3.50
x 2.54
1945
1963
1981
1945
= cm
I
R
M
L
)
)
L
)
)
)
L
3
L
3
L
L
L
)
L
[
L
L
3
3
4
1983
June
Temperature (oF)1/
Ground
Date
Rain2
Inches
1942-83 Extremes
Temperatures ( F)
Maximum
Highest
Year
Lowest
Year
Highest
Minimum
Year
Lowest
Year
1945
1945
1945
1945
1945
1945
1945
1949
1945
1945
1945
45,52,5
1952,7
1951,7
1945
1944,5
1964
1964,8
48,50,58
1963
1950
44,48,50
44,48,50
44,48,50
1948
1945
1952
1948
1948
1948
1949, 8:
1966
1968
1968
1968
1968
1968
1968
1966
947,65
1976
1965
1948
963,72
1947
1962
1959
1982
1967
1968
1955
1978
1945
1945
1974
1974
1968
1974
1974
1966
1959
54,77,82
1946,82
1982
1982
1982
1982
57,66,78,8
1958
1958
1958
1958
1952
1948
1949
1949
1949
1969
1982
1972
1950
1972
5f,72,82
1944
1945,69
1945
1951,69
1969,82
1957
1954,57
1971
1962
1965
1955
1945,67
1972
1972
1956
1972
1967
1960
1960
1960
1955
1950
1950
1947,78
1956,78
1956
1956
56,71,74
1974
1947
1965
1956,76
1978
1973,77
1952
1961
1952
Av. 88
Range 92
Total
1/ OF- 32
1.8
2.13
9.66
1945
1974
1949
1960
Inches
x 2.54
= cm.
1983
Temperature
July
(F)1/
_______Temperature (0F)
Ground
Min
Date
Rain
Inches
Maximum
Highest Year Lowest Year
Minimum
Highest Year Lowest Year
0.00
0.00
0.32
0.00
63
7,80
48,50,54,
48,50,59
1972
1979
1953,69
1969
1979
1980
1944,81
1980
51,61,69,7
1951
1944,81
1946,61
57,62,79,
1955,60
1955
1983
1983
1960
1960
1960
1960
1961,62
1966
1974,76
1968
1974
1957,58
1956
1974
1954
1950
1950,68
1963
1956
1975
1973,75
1965,72
1954
1978
1965
1961
1947
1949,70
1967
1966
1945
1945,53
5,54,64
1964
1960
1945
1965
1960
1966
1982,83
1970
1978,82
1945,46
1966
1945,80
1953
1954
1945
1965,80
1969
1969,80
1958
1980
47,48,81
1965
1966
1957
1981
53,57,60
1957,63
1960
57,62,83
1962
1962,68
1960,83
44,45,68
1945
1946
1957,65
1981
1968
56,67,73
1944
1947
1972
1972
1972,8
1968
1964,71
44,56,72,
1956,76
1956,71
1972
1974,77
1967
1967
1977
1977
1977
1977
1976
1977
1977
1956
55,56,77,
1961
6,55,72,7
1956
1967
1949.64
3
76
78
6,
Av.
Range
Total
1/ OF
1.07
3.49
1972
45,47,68
1954
1967,68
- 32
Inches
x 2.54
81
1942-83
Extremes
August
1983
1942-83 Extremes
Temperature (F )-/
Ground
Date
2/
Rain-/
Inches
0.18
0.00
0.00
0.02
0.00
0.00
0.05
0.34
0.14
0.14
0.81
0.00
0.00
0.08
0.05
0.49
0.02
0.00
0.00
0.00
0.09
0.00
0.10
Temperature (F )
Maximums
Highest
Year
1961
Lowest
1956,60
1960
1953
1956
54,56,61
1967
1977
1963
1981
1961
1956
1961
1963
94 51,54,61,78,79
1957,79
1957
1980
57,70,75,
1954
78,83
1962,8
1983
94 50,55,62,68,80,82 85
94 48,50,51,64,69 84
95 1964 82
Year
1974
1959
1973
1957
1958
1969
1969
1947
47,50,59
1959
1970
1967
1949
1980
1967
1971
48,65,71
1945,58
1981,82
1982
1949,81
1981
Minimums
Highest Year Lowest Year
1948,62
1965
1960
1953,58
1950
1962
1972
1972
45,58,60
45,54,60,68
44,45,53
1965
1953
1971,77
1971
1973,77
1976
1977
1968,81
1955
1956
1979
1967
1977
1955
1954
1978
1965
1949
1949
1949
1957
1944,45
51,69
1945.69
1977
1945
1960
1976,77
1967
1976
1962
1977
1956
1976
1977
1973
1957
1968
1958
1949
56,62,77
1962
0.74
0.00
0.00
1951
1944,49
56,59,67
1980
0.07
0.00
48,51,61
1955,61
1983
48,68,72
1949
1981
1977
1957
1949,70
1951
1962
1949
1948
1954
1959
47,49,51
1945,48
1958,78
1969
1962
1967,77
Range
fotal
1981
1958
1956
- 32
Inches
x 2.54
- cm.
1983
Temperature (oF)- 2
Ground Rain-'
Date
Inches
September
1942-83 Extremes
Maximums
Highest Year Lowest Year
Minimum
Highest Year Lowest Year
0.00
1.03
0.17
0.00
0.00
0.02
0.07
0.27
0.00
0.00
1.70
0.02
0.94
0.24
0.15
0.09
0.00
0.05
0.00
0.02
0.40
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1964
1944,64
1944,51
1945
1948
1948
1948,51
1957
1948
73,78
47,61,62
1945,79
1955
47,49,51,62
1950,58
1958
1957
50,51,56,74** 80
1962 87
1958
1961
4,57,58,
51,55,58
1954
1951,58
1951,55
1980
1951
50,51,74
1958
1953
1954,59
1983
1945
1950
1950
1950
1971
1971
1971
1971
1966
1968
1968
1946
1945
1983
1947
46,48,56,61
1962
1962
1948
1982
1963,82
1963
1948
1948
1947
1949
1967
1950,81
44,50,51,62
1944,51
1944,48
1944,79
1962
1974
47,51,65,77
45,65,68
1965,78
45,64,73
1979
1974,79
1964
1973
45,54,73
45,54,73,
1947
1945,78
1953,69
1951,79
47*, 51,54
1979
53,74,79
1953
1953
1957
51,63,65
1965
1945
69 51,66,70
7
1977
1968
1974
64,67,78
1964,78
1978
1964
67 50,64,68
65 1958
67 1980
65 1956
68 1969
1956
1968,76
1976
1976
1961
1981
1981
50,75,78
1964,72
1967
1967
1967
1961,
1956
1961
1983
1962
Av.
Range
Total
1.70
6.90
1957
1967
1979
1962
- 32
Inches
x 2.54
= cm.
Also 1958, 1959, 1971, 1972.
7
October
1983
Temperature (F
Ground
lax
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Min
66
69
. 72
72
66
65
65
68
67
69
68
69
70
71
73
73
70
71
69
68
70
68
70
69
60
57
56
55
57
60
61
Min
1942-83 Extremes
Temperature (F)
Maximum
- -2/
Rain-
Inches
0.00
0.00
0.06
0.00
0.00
0.00
0.00
0.00
0.00
0.03
0.04
0.00
0.08
0.05
0.40
0.42
0.16
0.46
0.01
0.00
0.04
0.00
0.00
0.00
0.33
0.00
0.00
0.00
0.00
0.00
0.01
Highest
93
95
95
94
95
92
91
93
92
93
92
93
92
90
92
91
92
88
91
89
88
88
89
89
88
89
89
89
90
93.
90
Year
1958,59
1958
1959
1962
1959
1955
1,55,62,
1962
1959
1959
1959
1959
1961
1962
1959
1959
1959
49,51,66
1960
1972
1946,50
1951,80
1950,51
1950
1981
1946,60
1960
1978
1978
1959
1980
Lowest
80
76
82
79
79
78
72
74
78
73
65
72
76
71
70
72
75
70
72
72
72
70
73
73
64
71
65
71
73
70
70
Year
1949,67
1951
1957,76
1948,74
1974
1964
1964
1964
1953
1953
1978
1971
1944
1977
1977
1978
1950
1977
1953
1955
1964
1976
1965
1982
1982
1982
1957
1957
1944
1968
1955
Minimum
Highest
74
76
74
74
77
73
76
73
72
73
71
73
72
72
73
73
72
74
74
72
73
74
73
70
71
70
69
72
71
71
71
Year
1948,69
1982
1964,82
,64,66,82
1966
1945
1962
1962,73
4,66,75
1971
,48,54,59
1961
1959
1964
1983
1983
1959
1968
1968
1950
1959
1969
1969
1969
1951
1951,77
1946,81
1972
1949
1949
1949,59
Av.
Range
Total
0.46
2.09
1959
1982
1966
- 32
Inches
x 2.54
= cm
o.I
1967
Lowes
62
56
57
55
58
59
57
58
58
58
56
56
50
53
53
50
55
51
52
50
43
45
46
50
49
47
42
44
46
43
46
Yea
197
197
197
197
197
197
196
197
948
197
195
194
194
194
195
194
197
197
96;
195
961
19(
19(
194
19i
1,8(
96;
19'
19E
19(
19W
November
1983
Temperature ( F)
Temperature (OF)
Ground
Date
Rain 2/
Inches
Maximum
Highest Year Lowest Year
Minimum
Highest Year Lowest Year
0.00
0.00
0.00
0.01
0.00
0.47
0.00
0.00
0.00
0.04
0.06
1971
1961
1962
1972
1959
1959
1961
1957,78
1946
,75,77,78
1961
1961
1949
1948,72
1944,57
1957
1957
47,48,60
1948,58
1948,74
1948,62
1948,73
1948,73
1958
1983
1946
1948
1948
1973
1968
1965
1953
1963
1966
1970
1950
1953
1959
1950
1956
1953
1953
1968
1968
1975
1969
1970
1970
1951
1951
1968
1944
1945,76
1945
1970
1970
1950
1947,56
1959,80
1955
1960
1971
1979,82
1982
1981
1958
1972
1972
1949
1980
1979
1979
1979
1947,72
1980
1951
1980
1947
1948
1946,48
1948
1947
47,48,53
1953
1957
1979
1948
1948
1964
1972
1954
1957
1954
1966
969,70
1950
1967
1951
1976
1961
1956
956,62
1968
1968
1969
1969
1970
1970
1951
1968
1968
1981
956,
956,
1970
1950
1962
1956
1966
1959
Av.
Range
Total
1.20
2.84
1961
1970
1958
1970
- 32
Inches
x 2.54
= cm.
Ra
I
1.
0.
1.
1.
0.
0.
2.
1.
1.
3.
0.
0.
0.
1.
0.
0.
1.
1.
0.
1.
0.
0.
0.
1.
3.
0.
0.
1.
0.
0.
3.
December
1983
Temperature ( F)
Ground
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2/
Rain-
Inches
0.54
0.01
0.01
1942-1983 Extremes
Maximum
Highest
85
86
85
86
85
86
86
86
86
85
86
86
0.05
0.00
1.05
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.23
0.00
Year
1978
1977
1968
1983
64,78,83
1983
1972
1978
1978
1960
1971
1947,48
1961
1956
1956
1961
48,56,59
1956
1946,67
1946,67
1956
1948
1970
1944
1970
1962
1962
1962
1960,83
1946,70
1951
Lowest
50
57
54
63
58
62
60
60
58
61
55
56
53
47
59
50
Year
1976
1976
1976
1974
1945
1945
1962
1962
1973
1954
1962
1973
1962
1962
1962
1968
1968
1973
1953
945,5
1954
1977
1975
1976
1963
1983
1983
1977
1980
1980
1983
Minimum
Highest
68
67
66
75
70
67
67
67
64
64
71
66
66
66
69
66
68
65
67
66
64
69
66
63
Year
1977
1982
1982
1983
1978
1983
1979,82
1972,82
1972,82
1982
1967
1976
1953
1972
1972
1965
1977
1961
1961
1946
1951
1951
1983
1947
1951
1964
1951
1949
1983
1945,49
1949
Lowest
31
34
40
32
33
36
35
35
33
26
29
24
20
21
31
24
29
29
32
32
31
29
28
31
25
23
27
29
33
24
34
Year
1966
1966
63,69,74
1974
1974
1963
1977
1959,77
1968
1974
1962
1957
1962
1962
1962
1968
960,68
1973
1950
1958
1954
1973
1973
1973
1966
1983
1983
1977
961,80
1961
948,80
Range
Total
1/ F
1.23
5.52
1944
1983
1983
1962
- 32
Inches
x 2.54
= cm.
1/
Inches-
of rainfall at ARC,
Ona for 1983 compared with average for
1984-83.
By months
Accumulative by months
Days
1943-83
Days
1943-83
1983
Excess
Deficit
Rain
1983
Excess
Deficit Rain
Jan.
Feb.
3.39
8.38
7.14
Mar.
1.30
5.72
4.23
-- --
-- --
a----
2.09
4.75
7.66
3.39
11.77
18.91
1.30
7.02
11.25
-- -
- -- -
Apr.
2.46
4.13
0.09
3.50
10.03
0.63
14.16
21.37
24.87
11i.34
10.71
June
July
Aug.
8.61
8.82
8.06
9.66
1.05
3.49
22.77
5.33
5.02
31.59
3.04
39.65
34.53
38.02
43.04
11.76
6.43
3.39
Sept.
7.32
6.90
0.42
46.97
49.94
Oct.
Nov.
3.09
1.80
2.09
2.84
1.04
1.04
1.00
---- -
50.06
51.86
52.03
54.87
1.97
3.01
----
----
1.91
3.61
53.77
60.39
6.62
Total 53.77
60.39
17.04
10.42
53.77
60.39
6.62
0.00
*0.01 or more inches of rain.
1/ Inches x 2.54
= cm.
1983
Frequency
of Maximum Temperatures-1/
of Maximum Temperatures--
, days
(OF) Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total (OF)
90-99 -- -- -- -- 5 9 22 22 11 3 -- -- 72 90-99
80-89 3 2 4 14 25 21 9 9 19 26 12 11 155 80-89
70-79 10 15 20 16 1 -- -- -- -- 2 13 10 87 70-79
60-69 17 11 6 -- -- -- -- -- -- -- 5 7 46 60-60
50-59 1 -- 1 -- -- -- -- -- -- -- -- -- 2 50-59
40-49 -- -- -- -- -- -- -- -- -- -- -- 3 3 40-49
21
Total/- 31 28 31 30 31 30 31 31 30 31 30 31 365
1983 Frequency of Minimum Temperatures-- days
(OF) Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total (OF)
70-79 -- -- 1 1 2 12 24 27 22 10 -- 1 100 70-79
60-69 5 1 6 8 15 18 7 4 8 17 10 11 110 60-69
50-59 8 14 12 14 14 -- -- -- -- 4 15 11 92 50-59
40-49 11 10 11 7 -- -- -- *-- -- -- 4 5 48 40-49
39 -- 1 -- -- -- -- -- -- -- -- -- 1 39
38 -- 1 1 -- -- -- -- -- -- 1 -- 3 38
37 -- -- -- -- -- -- -- -- -- -- -- -- 0 37
36 2 -- -- -- -- -- -- -- -- -- -- -- 2 36
35 -- 1 -- -- -- -- -- -- -- -- -- -- 1 35
34 -- -- -- -- -- -- -- -- -- -- -- 0 34
33 1 -- -- -- -- -- -- -- --- -- -- 1 33
32 -- -- -- -- -- -- -- -- -- -- -- -- 0 32
31 1 -- -- -- -- -- -- -- -- -- -- -- 1 31
30 1 -- -- -- -- -- -- -- -- -- -- -- 1 30
29 2 -- -- -- -- -- -- -- -- -- -- -- 2 29
28 -- -- -- -- -- -- -- -- -- -- -- 0 28
27 -- -- -- -- -- -- -- -- -- -- 1 1 27
26 -- -- -- -- -- -- -- -- -- -- 1 1 26
25 -- --- -- -- -- -- -- -- -- -- -- -- 0 25
24 -- -- --. -- -- -- -- -- -- -- -- -- 0 24
23 -- -- -- -- -- -- -- -- -- -- -- 1 1 23
Total-/ 31 28 31 30 31 30 31 31 30 31 30 31 365
18
Summary of Temperature Records, by Months
1983
Extreme
1983 Av.
1944-83
1983
Extremes
1944-83
Extremes
ground
surface min.
Month
Mean
Mean
High
High
Avg.
Extremes
Jan.
Feb.
Mar.
Apr.
May
June
July
70.4
70.0
73.5
78.5
86.1
88.3
91.1
46.8
49.8
52.7
55.6
61.7
68.9
70.9
58.6
59.9
63.1
67.1
73.9
78.6
81.0
72.8
74.7
79.3
83.8
87.9
90.3
90.7
48.7
50.0
54.9
58.3
63.1
68.7
70.9
60.8
62.4
67.1
71.1
75.5
47.3
50.1
52.3
53.7
60.9
79.5
80;8
68.7
67.8
Aug.
90.7
81.0
90.6
71.5
81.1
71.1
Sept.
Oct.
Nov.
Dec.
88.8
85.6
77.1
72.6
70.4
66.6
56.1
53.9
79.6
76.1
66.6
63.3
89.2
85.0
78.9
74.7
70.8
64.5
55.9
'50.5
80.0
74.8
69.6
66.3
67.4
62.6
55.4
52.3
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