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
U" /-Agricultural Research Center \ *
__Research Report RC-1977-3 J 0 January 1977
1976 CLIMATOLO A-E
C. L.'Dantzman/
This report summarizes the 1976 weather data for the Agricultural Research"
Center at Ona, Florida. Maximum and minimum temperatures and rainfall for
each day are listed on pages 2 through 13. -:The instruments thermometers
and hygrothermograph were housed in theweather box which was located four
feet above ground level. Anotherthermometer was housed'at ground level to
record minimum temperatures. Weather observations were:made at 9:30 A.M.,
unless noted, and cover the period following the previous reading.
A comparison of 1976 rainfall with the 1942-1976 average is given on page
14, and a summary of extremes of rainfall on page 15. Frequency range of
daily maximum and minimum temperatures is given on page 16, and a summary of
temperature records for 1944-1976 on page 17.
Rainfall
The total rainfall for the year 1976 at the Agricultural Research Center
at Ona, Florida, was 38.00 inches. This was 16.18 inches below the 1942-1976
average of 54.18. All months had deficit rainfall except May, November and
December which had excesses of 2.06, 0.65, and 0.13, respectively. There
were 163 days of measurable rain (0.01 inches or more) during the year.
The longest period of drought was 17 days ending on January 27.
Temperature
The highest temperature for the year was 93 degrees, which was measured
for seven dates in July, August, and September; the lowest, 30 degrees, occur-
red January 9 and 19, and February 3. Temperatures of 40 degrees or lower were
recorded 29 times: 11 in January, 7 in February, 7 in March, 1 in April, 2 in
November, .nd 9 in December.
'U':
Assistant Soils chemist, Agricultural Research Center, Ona, Florida.
January 1976
Temper ture ,(4 F), Rainfall
Ground
Date Max Min Mean min. Inches
1 78 42 60.0 40 0.22
2 69 38 53.5 34 0.01
3 76 47 61.5 43 0.00
4 78 49 63.5 44 0.00
5 63 42 52.5 39 0.01
6 65 51 58.0 49 0.00
7 67 50 58.5 47 0.01
8 81 56 68.5 53' 0.02
9 75 30 52.5 27 0.25
10 63 35 49.0 31 0.00
11 69 47 58.0 42 trace
12 74 46 60.0 42 0.00
13 78 51 64.5 46 0.00
14 80 57 68.5 52 0.00
15. 81 54 67.5 50 0.00
16 77 56 66.5 52 0.00
17 72 46 59.0 43 trace
18 58 31 44.5 26 0.00
19 53 30 41.5 27 0.00
20 65 43 54.0 42 0.00
21 72 52 62.0 48 0.00
22 71 37 54.0 33 0.00
23 63 36 49.5 32 0.00
24 67 37 52.0 32 0.00
25 80 48 64.0 -- 0.00
26 80 46 63.0 42 0.00
27 84 62 73.0 59 0.07
28 76 42 59.0 -40 0.40
29 62 31 46.5 28 trace
30 61 33 47.0 30 0.00
31 71 40 55.5 -- 0.00
Av. 71.3 44.0 57.6 37.8 0.99 (total)
Rang 84 30 26
30 26
Range 84
February 1976
Temperature (OF)
Min
50
38
30
. 38
51
55
58
34
36
35
38.
48
49
48
55
46
49
58
54
56
60
57
42
47
56.
57
60
55
65
49.1
Mean
59.0
54.5
47.0
S55,5
69.5 "
68.0
49.5
49.0
ST10
56.0
62.0
64.0
65.5
69.0
64.5
66.0
70.5
69.5
69.5
70.5
69.5
63.5
57.0
61.5
64.0
66.5
68.0
74.0
62.7
SGround
min.
36
27
34
47
50
54
30
32
30
54
44
42
44
53
50
53
57
52
38
46;
52
52
56
52
61
40.8
Rainfall
Inches
0.00
0.19
0.01
0.00
0.00
0.00
S0.00
0.00
0.00
0.00
0.00
trace
.i-aCe
0.00
0.00
trace
0.00
trace
0.01
0.01
0.02
0.02
0.01
0.00
0.03
trace
0.12
0.00
0.00
0.42 (total)
Range 85 30. 27
Date
Max
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
Av.
, 68
-71
64
73 -
79
84
78
65-
62
67'
74
76
79
83
83
83
83
83
85
83
81
82
85
67
67
71
73
81
83
76.3
Min min.--
::.-....
4M h
March 1976'
Temperature (OF)
Mean
74.0
71.5
72.0
72.5
73.5
75.0
73.0
70.0
72.0
72.0
60.0
66.5
71.5
72.5
73.0
72.0
65.5
53.5
61.0
66.0
67.0
70.0
69.5
62.5
65.5
65.0
70.0
70.0
71.0
71.0
72.5
69.1
Ground
min.
58
54
55
55
57
60
56
56
54
56
39
48
54
56
54
54
44
34
42
46
45
50
50
48
46
48
53
52
52
50
54
51.0
Rainfall
Inches
0.00
0.11
0.01
0.00
0.00
0.02
0.01
0.00
0.00
0.01
0.15
trace
0.00
0.00
0.00
trace
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
trace
0.00
0.00
0.00
0.32 (total)
40 34
Date
Max
86
85
85
86
86
86
86
81
85
85
78
81
84
86
88
86
85
67
76
81
84
87
86
73
80
79
82
84
86
88
89
83.3
Min
62
58
59
59
61
64
60
59
59
59
42
52
59
59
58
58
46
40
46
51
50
53
53
52
51
51
58
56
56
54
56
54.9
--- -------
Range 89
April 1976
Temperature (OF)
Date ..'. .7; Max
' in ~
86---
82
80
83
S85
,83
"-'75
'83
.. 79
S78
78
81
81
83
80
83
83
83
S83
'87
88
S86
86
'89
89
89
'88
86
88
90
83.8
ige 90
65
44
41
51
'51
-63
62
64
54
52
45
48
53
52
50
49
51
52
50
55:
61.
55
54 .
57
58
60
56
60
60
58
54.4
41
75.5
63.0
60.5
'67.0
68.0
-73.0
68.5
'73.5
66.5
65.0
61.5
64.5
67.0
67.5
65.0
66.0
67.0
67.5
66.5
71.0
74.5
70:5
70.0
73.0
73.5.
74.5
72.0
73.0
74.0.
74.0
69.1
-59
39
35
46
,46
60
58
59
52
48
39
42
48
48
50
43
46
48:
45.
50
58.
52
51
53
53
57
52
57
56
54
50.1
35
0.02
0.00
0.00
0.00
0.00 '
0.80
0.11
0.21
0.03
0.00
0.00
0.00
0.00
0.00
trace
0.00
trace
trace
0.00
0.00
0.06
0.35
trace
trace
0,00
0.01
0;00
0.00
0.00
0.00
1.59 (total)
Mean
Ground
;min.
Rainfall
Inches ....
1
2
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
Av
Ran
May 1976 .
Temperature (OF) Rainfall
Ground
Date Max Min Mean min. Inches
1 88 67 77.5 64 0.14
2 85 64 74.5 59 0.16
3 80 63 71.5 59 0.01
4 84 55 69.5 51 0.00
5 88 57 72.5 53 0.00
6 87 60 73.5 56 0.00
7 89 68 78.5 65 0.42
8 89 65 77.0 62 0.29
9 89 63 76.0 59 0.01
10 88 64 76.0 60 0.08
11 88 64 76.0 62 0.00
12 87 60 73.5 57 0.00
13 89 62 75.5 60 0.88
14 88 65 76.5 62 0.08
15 77 69 73.0 66 0.47
16 85 67 76.0 64 0.30
17 89 66 77.5 64 1.46
18 88 70 79.0 66 0.08
19 87 57 72.0 .53 0.04
20 84 67 75.0 64 0.00
21 86 66 76.0 62 0.00
22 80 67 73.5 63 0.74
23 85 69 77.0 65 0.27
24 83 69 76.0 66 0.21
25 83 63 73.0 62 0.01
26 83 60 71.5 58 0.05
27 .87 64 75.5 60 trace
28 88 71 79.5 68 0.00
29 84 62 73.0 58 0.28
30, 87 64 75.5 61 0.01
31 89 62 75.5 58 trace
Av 85.9 64.2 75.0 60.9 5.99 (total)
55 51
_ _
Range 89
June 1976
Temperture (OF)
....-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
Av
Range
Max
89
89
88
88
87
86
87
86
87
86
82
85
87
90
89
91
90
90
90
89
89
92
82
82
87
87
89
90
90
89
87.8
92
Min.
Mean
62 75.5
63 76.0
67 77.5
66 77.0
64 75.5
66 :- 0
67 77.0
67 76.5
64 75
67 76.5
69 75.5
66 75.5
68 77.5
66 78.0
66 77.5
71 81.0
66 78.0
68 79.0
S 67 78.5
70 79.5
67 78.0
67 79.5
67 74.5
68 75.0
66 76.5
67 77.0
67 78.0
68 79.0
69 78.5
67 78.0
66.8
77.2
Ground
min. .
60
60
64
62
60
" ...... 62 -
64
64
62
64
66
62
63
62
63
69
63
63
63
63
62
65
65
66
62
62
62
64
66
64
63,2
Rainfall
Inches
0.01
0.56
0.15
0.40
trace
0.07
trace
trace
0.00
0.32
0.48
0.00
trace
trace
0.00.-
0.00
0.02
0.00
trace
0.00
0.00
0.89
1.59
0.19
0.03
0.07
0.81
0.02
0.00
1.82
7.43 (total)
62-
r
July 1976
Temperature (OF)
Mean
81.0
78.5
80.0
80.5
81.5
81.0
79.0
78f.0
77.0
79.0
78.5
78.0
79.0
79.5
80.5
81.5
79.0
80.5
79.5
82.0
83.0
78.5
79.0
80.0
82.0
80.5
79.0
80.0
80.0
80.0
79.0
79.8
Rainfall
Ground
min.
Inches
0.01
0.10
trace
0.00
0.00
0.00
0.31
0.37
0.42
trace
0.00
0.31
trace
0.08
trace
0.00
0.00
0.06
0.16
trace
0.00
0.61
0.00
0.00
0.00
1.82
0.07
0.02
0.37
0.00
0.51
89
85
92
90
92
-93
90
89
88
89
89
90
89
89
90
91
91
91
92
93
93
92
89
90
93
92
90
91
92
91
89
90.5
-93 -
5.22 (total)
Range 65 6
Date
Max
66.5
Min:
69.2
"
Range
65 63
August 1976
.Temperature (F)
1
2
3
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
Av
Range
Ground
. Mean ..... .... min.
79.5
79.5
80.5
79.0
78.5
86.0
81.0
79.5
81.0
80.5
80.0
81.5
82.0
80.0
77.5
78.0
79.5
81.0
78.5
75,5
80.0
80.5
79.5
80.5
82.5
80.5
81.0
81.0
81.0
80.0
80.0
80.2
67
67
67
67
66
69
68
66
68
68
66
68
68
64
66
64
66
68
67
64
67
66
67
68
60
68
68
67
66
66
66
66.6
Rainfall
Inches
0.00
0.01
0.00
0.01
0.01
0.01
0.00
trace
0.12
0.13
0.06
0.01
0.34
0.36
1.61
0.44
0.03
0.37
0.45
0.00
0.02
trace
0.00
1.13
0.05
0.02
0,01
0.00
0.03
0.01
0.00
5.23 (total)
66 60
. Max
Min
Date
69.9
69
69
70
70
69
72
70
67
70
71
69
72
72
68
70
67
69
71
70
66
71
70
70
71
73
72
71
71
70
69
69
90.2
93
c'
10
September 1976
Temperature (OF)
Rainfall
Inches
0.12
trace
0.91
0.01
0.01
0.05
0.03
0.14
trace
0.12
0,04
0.12
0.06
0.01
trace
0.00
0.00
0.00
0.00
0.00
0.20
0.73
, 0.01
S1.48
0.02
trace
trace
S0.00
0.00
2
.3
S4
5
6
7
S8
.,9
10
.11
12
13
14
15
: 16
17
,18
,19
,20
' 21
22
23
24
25
26
27
S28
29
30
Av
.Range
Date
91
90
93
91
90
87
87
91
92
93
89
86
85
89
88 ?
86
88
90 '
90
89
89
89
85
85
87
89
89
91
91
S'89.0
93
Max
69
71
68
70
69
69
69
70,
71
72
71
70
69
66 .'
65
60,,
66
68
65
68
709
67
6,6
'66
67
. 71
,70
68.3
60
-Min
80.0
80.5
80.5
80.5
79.5
78.0
78.0
80.5.
81,5-,
86.0,
80.0
78.0,
77.0:
77.5
76.5
73.0
77.0
79.0
77.5
77.0
78.5
80.0
76.5
77;5
77. 0
77. 5
77.5
79.0
81.0
80.0
78.7
'* i
Mean
66
68
66
67
66
66
66
67
68
68
66
66
66
62
62
56
62
64
62
66"
64
68
64
66-
64
63
64
63
67
69
-5.1
-56
Ground
min.
4.06 (total)
October 1976
Temperature (OF)
Min
Mean
83
78
82
83
-86
89
88
89
91
76
77
76
80
83
81
83
83
87
79
86
86
70
75
81
83
84
79
77
74
80
82
Av 81.7
Range 91
73.0
67.0
69,5
72.0
74.0
77.0--
77.5
80.0
81.5
67.0
70.0
67.0
69.0
69.5
69.0
73.0
75.5
76.5
71.5
78.5
69.0
58.5
64.0
69.0
72.0
75.0
67.0
68.0
64.0
67.0
68.0
60.3 ,
70.9
60
52
54
57
58
- 61...
64
72
68
56
62
56
54
52
54
59
65
63
62
68
50
44
59
54
58
62
52
56
51
50
60
57.8-
0.88
0.01
trace
trace
0.00
trace
trace
trace
0.82
trace
0.05
trace
trace
trace
0.00
0.00
0.30
0.01
trace
0.04
0.00
trace
0.00
0.00
0.00
0.33
0.01
0.00
0.00
0.00
0.00
2.45 (total)
47 44
Date
Max
Ground
min.
Rainfall
Inches
November 1976
Temperature (OF)
Date
Max
1 78
2 76
3 81
4 72
5 74
6 70
7 72
8 73
9 65
10 74
11 76
12 75
13 76
14 78
15 82
16 83
17 78
18 80
19 79
20 81
21 82
22 73
23. 62
24 65
25 66
26 73
27 82
28 83
29 85
30 84
75.9
Min
47
54
57
51
49
42
48
46
36
45
53
61
60
57
67
61
63
58
55
64
64
45
36
41
41
54
66
65
67
46
53.3
Mean
62.5
65.0
69.0
61.5
61.5
56.0
60.0
59.5
50.0
59.5
64.5
68.0
68.0
67.5
74.5
72.0
70.5
69.0
67.0
72.5
73.0
59.0
49.0
53.0
53.5
63.5
74.0
74.0
76.0
65.0
64.9
Ground
min.
44
50
54
48
46
37
45
42
32
42
48
58
56
53
74
58
60
64
52
59
60
40
32
38
36
50
61
59
76
44
50.6
Rainfall
Inches
0.00
trace
1.93
0.01
trace
0.00
0.00
0.00
0.00
trace
0.00
0.01
trace
0.00:
0.00
0.04
trace
trace
trace
0.00
0.00
0.01
trace
trace
0.00
0.00
trace
trace
trace
0.45
2.45 (total)
36 32
,Range 85
I
December 1976
Temperature (OF)
Date
Max
1 50'
2 57
3 54
4 70
5 71
6 72
7 79
8 81
9 62
10 72
11 78
12 83
13 80
14 80
15 73
16 81
17 73
18 69
19 72
20 77
21 78
22 55
23 68
24 55
25 64
26 76
27 60
28 64
29 71
30 66
31 73
Av 69.8
Range 83
Min-
38
47
42
48
51
54
62
55
36
50
65
66
64
64
65
64
46
40
40
42
43
33
36
46
44
59
36
37
53
35
53
Mean
44.0
52,0
48.0
59.0
61.0
63.0
70.5
68.0
49.0
61.0
71.5
74.5
72.0
72.0
69.0
72.5
59.5
54.5
56.0
59.5
60.5
44.0
52.0
50.5
54.0
67.5
48.0
50.5
62.0
50.5
63.0
48.8
Ground
min.
36
46
40
44
48
52
58
52
33
48
62
63
60
60
62
58
42
36
37
38
40
28
34
43
40
55
32
34
50
30
49
45.5
Inches
0.81
0.05
0.00
trace
0.00
0.04
trace
0.33
trace
trace
0.00
0.01
0.01
0.00
0.01
0.01
trace
0.00
0.00
trace
0.05
trace
trace
0.21
0.01
0.20
0.02
0.01
0.08
0.00
trace
1.85 (total'
33 28
Rainfall
Inches
Rainfall
at ARC,
for 1976
compared with
average
for 1943-
" -L* ..1 I
1976
years).
Months
Accumulative
Months
1943-76
34 year
Av.
Days*
1943-
year
1976
Excess
Deficit
Rain
1976
Excess
Deficit
of
Rain
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sept
0.99
0.42
0.32
- n
1.00
2.04
1.99
4.45
0.89
2.06
22.39
31.69
39.85
* 8.16
3
0.65
0.13
50.66
52.46
54.18
0.99
6.40
4.34
12.66
15.94
-- 16
16.31
9.'31
16.74
21.96
27.19
31.25
33.70
38.00
-- 16
Total
54.18
38.00
2.84
19.02
38.00
0.01
or more
inches
of rainfall.
_ll II] I 1I I __ I __ fil
I C_ I I _II LIt A
Summary of Extremes of Rainfall, by months.
Greatest Daily
Rainfall
Amt. Year
2.15
2.94
3.18,
4.70
3.59
11.23
4.42-
4.90
5.10
3.26
.4,25
2.95 '
1958
1960
1958
1951
1968
1945
1948
1943
1962
1951
1964
1957
Greatest Monthly
Rainfall
Amt. Year
8.45
6.79
8.60
11.91
10.58
18.99
19.74
14.26
16.38
11.23
5.44
6.05
1958
1963
1959
1951
1943
1953
1960
1949
1960
1952
1953
1957
Lowest Monthly
Rainfall
Amt. Year
0.03
0.13
0.13
0.00
0.00
2.79
4.11
3.13
1.33
0.19
0.11
0.16
1950
1949
1945
1967
1953
1956
1972
1954
1958
1942
1944
1949
Days of Rain *
in Months 1942-76
Greatest"
No.Day Year
16 1962
17 19641!
14 1959
15 1954
21 1976
20 1968:
29 1960
26 1967
28 1960
19 19712i
11 19653
15 1976
Least
No.Days Year
1 1949
S2 1950-
1 1945
0 1967
0 1953
7. 1958=
11 1962
11 1954
8 1944
2 1942
1 1942
2 1970.
0.01 inches or greater.
1/ Also occurred in 1960 and 1963.
2/ 1969.
3/ 1947.
4/ 1943, 1945, and 1949.
5/ 1954.
6/ 1946.
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sept.
Oct.
Nov.
Dec.
16
1976 Frequency of Maximum Tempertures, days.
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total
91-100 2 15 17 8 1 43
81-90 3 13 "-2-5 24 :.,28 28 16 14 22 17 9 3 202
71-80 15 9 5 6 "3 12 16 15 81
61-70 11 7 1 1 5 7 32
51-60 2 5. 7
41-50 1
Total 31. 29 31' 30 31 30 31 31 30 31 30 31 366
"__ '1976 Frequency of Minimum Temperatures, days.
(F) Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total
1 1 9 11 6 3 -31
1 1 3 5 24 29 22 20 23 12" 9. 7 156
7: 13 24 18 .6 1 15 9 6 99
12 8 3 7 10 9 50
1 1 2 4
0.
* 1 5
1 3
2 3 7
S1 3
S" 1
. 1 2
0
2 1
31 29 31 30 31 30 31 31 30 31 30 31 366
(F)
1 3
71-80
61-:70
51-60
41-50
40
39
38
37
36
35
34
33
32
31
30
Total
Summary of Temperature Recores, by Months
1944-1976 Av
Av. Av.
Max Min Mean
73.7
75.3
79.9
84.0
88.1
90.2
90.6
90.6
89.3
85.0
78.9
74.4
49.4
50.4
54.2
58.3
63.2
68.6
70.9
71.5
70.8
64.5
55.7
50.3
61.6
62.9
67.1
71.2
75.7
79.4
80.8
81.1
80.1
74.8
67.3
62.4
1976 Averages
Av. Av.
Max Min Mean
71.3
76.3
83.3
83.8
85.9
87.8
90.5
90.2
89.0
81.7
75.9
69.8
44.0
49.1
54.9
54.4
64.2
66.8
69.2
69.9
68.2
60.3
53.3
48.8
57.7
62,7
69.1
69.1
75.1
77.3
79.9
80.1
78.6
71.0
64.6
59.3
1944-1971
High Year
87
91
94
97
103
103
101
98
95 /
95-
903/
88
1947
1962
1946
1945
1945
1945
1972
1967
1944
1958
1959
1944
Extremes 1976 Extreme
LTw Y.ar
21
264/
28
33
.43
555/
62Y/
62-7/
56
37
25
20
H'i gh T.nw
1971
1947
1962
1950
1945
1962
1967
1952
1962
1951
1970
1962
Also occurred in
Also occurred in
1948, 1951, 1954, 1955, and 1962.
1959.
Also occurred in 1961.
Also occurred in 1971.
Also occurred in 1972.
Also occurred in 1968.
Also occurred in 1956 and 1968.
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sept.
Oct.
Nov.
Dec.
-~---
Lo er Ha o
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