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
Agric
C 5 Reset
II /
culturall Research Center, Ona
irch Report RC-1976-1
HUME LIBRARY Iy1976
1975 CLIMATOLOGICAL RE ORT JUL I U IYli
1/C. L. Dantzma
C. L. Dantzmar
.F.A.S. Univ. of Florida
The 1975 weather data for the Agricultural Research Center, Ona Florida
is summarized in this report. Daily temperatures and rainfall for each month
is listed on paged 2 through 13, The weather box containing the standard
thermometers and hygrothermograph is four feet above ground level. Weather
observations were at 9:30 a.m. unless noted, and covered the previous 24 hour
period. The ground thermometer rested on the soil surface. The ground-level
minimums are the lowest temperatures for the period following the previous
reading.
Rainfall is compared with 1942-1974 averages on page 14. Frequency range
of daily maximum and minimum temperatures by months is shown on page 15. A
summary of rainfall extremes is given on page 16.
Rainfall
The total rainfall for 1975 at the Agricultural Research Center, Ona was
47.44 inches. This was 7.16 inches below the 1942-1974 average of 54.60. The
following months were deficit in rainfall compared to the average: January
1.46, February 1.34, March 2.33, April 2.13, June 1.69, July 1.37, September
2.81, November 1.61, and December 1.44. Only three months had excess rainfall
measured: May 5.43, August 1.12, and October 2.47. There were 149 days of
measurable rain (0.01 or more) for the year. The longest period of drought
was 15 days ending on May 2.
Temperature
The highest temperature for the year was 95 degrees, which
for May 9 and 10; the lowest, 30 degrees, occurred December 22.
of 40 degrees or lower were recorded 22 times: 2 in January, 3
4 in March, 3 in April, 3 in November, and 7 in December.
was measured
Temperatures
in February,
1/ Assistant Soils Chemist. Agriciiltural Research Center, Ona, Florida.
JANUARY 1975
Temperature (OF)
Mean
70.0
69.5
62.0
67.0
68.0
64.5
61.0
65.0
70.0
70.0
75.5
72.5
70.5
45.5
43.0
55.0
62.5
65.0
70.5
73.0
60.5
59.5
72.0
71.5
72.5
67.0
60.5
71.0
71.5
70.5
72.0
66.1
Ground
min.
50.9
0.60 (total)
31 27
Date
Max
Rainfall
Inches
Min
54.2
0.00
0.01
trace
0.00
0.00
0.01
0.00
0.01
0.01
- 0.00
0.00
0.01
0.13
0.12
0.01
trace
0.01
0.00
trace
0.01
0.00
0.00
trace
0.00
trace
0.24
0.02
trace
trace
trace
0.01
78.0
Range 85
FEBRUARY 1975
Temperature (*F) Rainfall
Ground
Date Max Min Mean min. Inches
1 85 60 72.5 56 0.00
2 83 56 69.5 52 0.00
3 83 50 66.5 48 trace
4 83 57 70.0 53 trace
5 83 63 73.0 58 trace
6 83 62 72.5 58 0.04
7 80 54 67.0 50 0.60
8 62 37 49.5 32 0.01
9 71 45 58.0 41 trace
10 77 45 61.0 45 0.10
11 67 56 61.5 52 0.03
12 78 49 63.5 46 0.01
13 84 64 74.0 62 0.00
14 81 49 65.0 46 0.01
15 79 55 67.0 51 0.00
16 80 61 70.5 56 trace
17 87 60 73.5 56 0.01
18 86 59 72.5 54 trace
19 86 63 74.5 60 0.01
20 87 66 76.5 62 0.01
21 83 64 73.5 62 0.02
22 87 59 73.0 55 trace
23 86 61 73.5 57 trace
24 87 69 78.0 66 0.00
25 76 49 62.5 46 0.35
26 69 38 53.5 36 0.01
27 74 47 60.5 44 trace
28 77 38 57.5 35 trace
Av. 80.1 54.9 67.5 51.4 1.23 (total)
Range 87 37 32
MARCH 1975
Temperature (OF)
Rainfall
Inches
0.13
0.01
0.04
trace
0.21
0.01
trace
0.01
0.00
0.01
trace
0.01
trace
0.00
0.13
trace
0.01
0.00
0.02
trace
trace
0.00
0.00
trace
trace
0.02
0.00
0.00
0.00
trace
0.00
0.61(total)
36 32
Date
Max
Min
50
52
36
36
45
41
44
52
40
41
55
59
64
68
49
52
61
61
61
43
38
43
52
63
64
57
56
60
64
64
65
52.8
Mean
62.5
64.0
54.0
49.5
58.0
55.0
61.0
66.5
60.5
56.5
69.0
72.5
76.0
78.0
65.0
67.0
74.5
72.5
73.5
60.5
57.5
62.5
68.0
75.0
76.5
70.0
70.5
72.5
75.5
75.0
77.0
67.0
Ground
min.
46
48
32
32
41
35
38
46
36
38
52
54
60
62
47
50
58
58
62
38
33
39
48
59
60
53
52
58
61
60
62
49.0
81.2
---
- I ---
Range 89
APRIL 1975
Temperature
(F)
Mean
76.5
78.0
79.0
63.0
55.0
58.0
63.0
71.0
75.0
77.0
78.0
74.5
67.5
70.5
80.0
67.5
62.0
71.5
74.5
74.0
76.5
73.5
72.5
70.5
74.5
74.5
76.5
75.5
76.0
78.5
72.1
Ground
min.
62
60
60
34
30
34
42
52
58
58
62
59
49
54
67
45
38
54
56
53
60
56
54
51
56
54
56
60
58
60
53.7
Rainfall
Inches
trace
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
,0.00
0.21
trace
0.12
0.00
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.45 (total)
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
30
Av.
Range
Min
65
65
66
40
36
38
44
56
62
63
65
63
54
58
70
52
44
57
60
58
63
60
59
55
61
59
61
62
61
64
57.4
88
91
92
86
74
78
82
86
88
91
91
86
81
83
90
83
80
86
89
90
90
87
86
86
88
90
92
89
91
93
86.9
93
-e ne at r f- -- -
_IL
Temperature (*F)
Rainfall
Inches
0.00
0.08
0.00
0.00
trace
0.00
0.00
0.00
trace
0.00
1.65
0.01
0.01
0.00
2.38
0.01
0.37
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.29
0.57
0.58
3.19
9.13 (total)
59 54
MAY 1975
Date
Max
Min
64
60
60
62
61
59
64
64
63
65
63
64
64
66
67
70
69
66
62
65
64
64
63
62
64
63
64
66
68
69
68
64.3
Mean
79.0
77.0
76.0
77.0
75.5
75.5
78.5
79.0
79.0
80.0
72.0
76.0
75.5
78.0
79.5
81.0
77.5
78.5
75.5
77.0
77.5
77.5
77.0
75.5
77.0
77.5
78.5
79.0
77.0
77.5
77.0
77.4
Ground
min.
60
57
56
58
56
54
60
66
61
62
60
60
62
63
64
68
68
64
58
63
60
60
62
62
60
60
62
63
66
65
68
61.5
90.4
---
- -- -
Range 95
Temperature (CF)
Rainfall
Inches
0.12
0.12
0.04
0.03
0.00
0.00
0.00
0.78
0.02
0.03
0.49
0.00
0.00
0.00
0.00
0.00
0.00
0.13
0.04
1.56
0.07
0.00
1.85
0.08
0.03
1.64
trace
trace
0.16
0.01
7.20 (total)
65 60
JUNE 1975
Date
Max
Min
69
69
67
66
66
67
68
70
69
68
69
67
65
65
65
67
67
69
69
66
69
67
66
69
70
67
70
70
71
70
67.9
Mean
77.5
78.5
78.0
76.0
78.0
78.5
79.0
79.0
77.0
80.0
79.5
80.0
79.0
79.0
79.5
80.5
79.5
80.0
80.5
78.5
79.0
76.5
77.5
76.0
79.0
78.5
79.0
80.0
80.5
78.5
78.7
Ground
min.
68
66
64
62
62
64
64
68
66
65
66
63
62
60
62
64
64
66
64
63
66
65
64
66
66
64
67
67
67
67
64.7
89.6
- ----
Range 94
JULY 1975
Temperature (OF) Rainfall
Ground
Date Max Min Mean min. Inches
1 93 71 82.0 68 0.54
2 90 70 80.0 67 0.01
3 88 69 78.5 66 0.04
4 89 67 78.0 64 0.90
5 90 68 79.0 65 trace
6 90 71 80.5 67 0.00
7 90 70 80.0 67 0.00
8 91 70 80.5 68 trace
9 92 71 81.5 68 0.00
10 92 70 81.0 68 0.00
11 88 70 79.0 68 Q.24
12 85 70 77.5 66 0.79
13 84 69 76.5 66 1.32
14 85 69 77.0 67 1.23
15 89 70 79.5 68 trace
16 90 72 81.0 70 0.06
17 91 72 81.5 69 0.00
18 91 71 81.0 68 trace
19 90 72 81.0 68 0.05
20 89 70 79.5 67 0.22
21 89 71 80.0 68 trace
22 89 70 79.5 68 0.00
23 90 70 80.0 68 trace
24 92 71 81.5 68 0.07
25 92 70 81.0 67 0.00
26 91 71 81.0 68 0.31
27 90 71 81.5 68 0.03
28 90 72 81.0 70 trace
29 88 72 80.0 69 0.17
30 90 69 79.5 68 1.90
31 89 71 80.0 0.11
Av. 89.6 70.3 80.0 67.6 7.99 (total)
67 64
Range 93
AUGUST 1975
Temperature (OF) Rainfall
Ground
Date Max Min Mean min. Inches
1 89 71 80.0 68 0.01
2 90 72 81.0 68 0.03
3 90 70 80.0 66 trace
4 89 68 78.5 66 0.75
5 92 69 80.5 64 0.05
6 93 72 82.5 70 0.00
7 92 69 80.5 67 0.06
8 92 69 80.5 65 0.25
9 88 71 79.5 68 0.54
10 91 71 81.0 68 0.03
11 91 73 82.0 69 .0.00
12 92 74 83.0 71 0.00
13 92 70 81.0 68 0.17
14 90 69 79.5 66 1.35
15 91 71 81.0 68 0.61
16 92 74 83.0 0.00
17 93 74 83.5 0.00
18 93 73 83.0 70 0.16
19 93 73 83.0 70 0.40
20 91 68 79.5 67 1.68
21 88 70 79.0 68 0.36
22 89 70 79.5 68 0.78
23 92 76 84.0 '0.00
24 92 74 83.0 0.00
25 92 71 81.5 68 0.28
26 92 74 83.0 70 0.03
27 91 74 82.5 71 0.68
28 91 74 82.5 70 0.00
29 91 73 82.0 70 0.07
30 91 70 80.5 67 0.86
31 90 70 80.0 66 0.07
Av, 91.1 71.5 81.3 68.0 9.22 (total)
68 64
_ _____ _~
Range 93
10
SEPTEMBER 1975
Temperature (OF)
Rainfall
Inches
0.00
0.68
0.20
0.94
trace
0.37
0.00
0.08
0.07
- 0.25
0.00
0.12
0.00
0.22
0.59
trace
0.02
0.00
0.20
0.18
trace
0.01
0.04
0.33
0.00
0.00
0.00
0.00
0.40
0.01
4.71 (total)
67 64
Date
Max
Min
71
70
68
70
73
69
70
72
74
70
71
71
71
73
71
71
69
70
73
76
67
73
74
72
70
69
68
69
70
71
70.8
Mean
80.5
80.5
78.0
80.0
82.0
79.5
80.0
81.5
82.5
80.0
80.5
81.0
81.5
82.5
78.0
80.0
79.0
80.5
82.5
82.0
79.0
81.5
81.5
80.5
78.5
76.0
75.5
76.5
78.5
77.5
79.9
Ground
min.
67
66
66
67
70
68
68
68
71
68
68
68
68
70
68
68
67
65
72
70
70
72
70
67
66
64
65
68
69
68.1
88.9
- -- --------
Range 92
OCTOBER 1975
Temperature (OF)
Mean
80.0
80.0
78.5
80.0
79.0
79.5
81.0
80.5
81.0
82.0
78.5
76.0
76.0
78.5
76.5
77.0
79.0
77.5
70.5
72.0
67.5
72.5
73.5
73.0
73.5
72.5
74.0
78.0
77.5
73.5
73.0
76.5
Ground
min.
64.2
5.80 (total)
57 54
Date
Max
Rainfall
Inches
Min
66.9
0.30
0.19
0.53
trace
trace
0.59
0.00
trace
0.00
S0.61
trace
trace
trace
trace
trace
0.00
0.23
0.46
trace
trace
0.00
0.00
trace
0.00
0.00
trace
trace
0.00
2.89
trace
0.00
86.1
------------
Range 92
NOVEMBER 1975
Temperature (OF)
Mean
70.5
71.5
74.5
76.5
75.5
76.0
78.0
77.5
76.5
76.0
78.0
76.0
72.5
54.0
48.0
55.0
64.0
66.5
69.5
69.5
68.0
69.5
59.0
49.5
51.0
57.5
64.0
69.5
71.5
70.5
67.9
Ground
min.
53.6
0.17 (total)
36 34
Date
Max
Rainfall
Inches
Min
57.2
0.00
0.00
trace
0.00
0.05
0.00
0.04
0.00
0.00
0.05
0.00
0.00
trace
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
trace
0.01
trace
0.00
0.01
0.00
0.00
trace
78.5
Range 86
DECEMBER 1975
Temperature (OF)
Mean
68.0
69.0
59.5
63.5
66.0
69.5
67.0
66.0
66.0
61.0
49.0
59.5
66.5
67.5
67.5
64.5
64.5
68.5
50.5
49.0
54.5
44.5
42.0
46.5
61.0
70.0
58.5
51.5
54.5
69.5
72.5
60.9
Ground
min.
45.1
0.33 (total)
30 27
Date
Max
Rainfall
Inches
Min
48.7
trace
trace
0.01
trace
0.00
0.00
trace
0.00
0.00
0.07
trace
0.00
trace
trace
trace
0.00
0.00
0.01
0.00
0.00
0.09
trace
0.00
0.00
0.00
0.12
0.03
trace
0.00
0.00
trace
73.1
Range 82
Inches Rainfall at Agricultural Research Center for
1975 compared with average
Accumulative by months
By months
1942-1974
33 year
1975
Excess
1942-1974
33 year
Deficit
1975
Excess
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sept
Oct.
Nov.
2.58
3.70
8.89
9.36
8.10
3.33
1.78
1.77
0.60
1.23
0.61
0.45
9.13
7.20
7.99
9.22
4.71
5.80
0.17
0.33
1.46
1.34
5.43
--O
- -
1.69
1.37
1.12
2.81
2.47
1.61
1.44
2.06
4.63
7.57
10.15
13.85
32.10
40.20
47.72
51.05
52.83
54.60
0.60
1.83
12.02
19.22
27.21
36.43
41.14
46.94
47.11
47.44
Total
54.60
47.44
9.02
16.18
54.60
47.44
_ ____ __
_
_ ~~___ __~__~_I_
1975 Frequency of Maximum Temperatures, days.
(OF)
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total
91-100 7 18 10 9 22 10 2 78
81-90 16 16 21 20 13 20 22 9 20 26 16 5 204
71-80 11 9 8 3 3 6 15 55
61-70 2 3 2 7 7 21
51-60 2 1 4 7
41-50
Total 31 28 31 30 31 30 31 31 30 31 30 31 365
1975 Frequency of Minimum Temperatures, days.
(OF) Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Total
71-80
61-70
51-60
41-50
40
39
1 14 10 16 6
5 9 10 14 28 29 17 12 14 23 13 3
W 9 9 11 3 2 10 12
5 7 8 2 4 9
1 1 2
2 1 1
2 1
1 1
Total 31 28 31 30 31
1
30 31 31 30 31 30 31
Rainfall Extremes (in.)
Month Greatest Day Greatest Month Lowest Month
Rain Year Rain Year Rain Year
Jan. 2.15 1958 8.45 1958 0.03 1950
Feb. 2.94 1960 6.79 1963 0.13 1949
March 3.18 1958 8.60 1959 0.13 1945
April 4.70 1951 11.91 1951 0.00 1967
May 3.59 1968 10.58 1943 0.00 1953
June 11.23 1945 18.99 1953 2.79 1956
July 4.42 1948 19.74 1960 4.11 1972
Aug. 4.90 1943 14.20 1949 3.13 1954
Sept. 5.10 1962 16.38 1960 1.33 1958
Oct. 3.26 1951 11.23 1952 0.19 1942
Nov. 3.74 1953 5.44 1953 0.07 1960
Dec. 2.95 1957 6.05 1957 0.16 1949
|