OK38 Coop Summary

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Cooperative Observer Station Summary

HAMMON 3 SSW (343871)
*

ROGER MILLS County

Climate Division: 4
*

Latitude: 3536N;     Longitude: 09924W

Elevation: 1819 ft
*

Precipitation Period of Record:

1920/01-2005/11 ( 91%)
*

Temperature Period of Record:

1920/01-2005/11 ( 90%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

47.6
20.5
33.7
.83
1.6

February

54.0
25.5
39.3
.99
2.1

March

62.3
33.4
47.5
2.10
.8

April

71.5
42.5
56.7
2.35
.3

May

79.1
52.9
65.8
4.63
.0

June

NA
NA
NA
3.80
.0

July

94.5
NA
NA
2.07
.0

August

92.9
NA
NA
2.74
.0

September
84.6
58.2
71.1
3.11
.0

October

73.6
44.8
58.9
2.24
.0

November

59.3
32.3
45.5
1.66
.6

December

49.3
22.7
35.8
1.09
2.4

Annual

71.4
44.2
57.5
27.46
7.6

Average Number of Days Per Month (1971-2000)

 

Temperature

Precipitation

Snowfall and Sleet

 

Max>100

Max>90

Max<32

Min<32

Min<0

any

meas

0.10"+

0.25"+

0.50"+

1.00"+

any

meas

0.50"+

1.00"+

Glazing

Jan
0
0
5
29
1
3
3
2
1
1
*
1
1
1
1
1

Feb
0
*
3
21
1
4
3
2
1
1
*
1
1
1
1
1

Mar
0
*
1
15
*
5
4
4
3
1
1
*
*
*
*
*

Apr
*
1
0
4
0
6
5
4
3
2
1
*
*
*
*
*

May
*
4
0
*
0
8
7
6
5
3
2
0
0
0
0
0

Jun
NA
NA
NA
NA
NA
7
7
5
4
3
1
0
0
0
0
0

Jul
7
25
0
NA
NA
4
4
3
2
1
1
0
0
0
0
0

Aug
6
23
0
NA
NA
5
5
4
3
2
1
0
0
0
0
0

Sep
1
11
0
*
0
6
5
5
3
2
1
0
0
0
0
0

Oct
*
1
*
4
0
4
4
3
2
2
1
0
0
0
0
0

Nov
0
0
1
16
0
4
4
3
2
1
*
*
*
*
*
*

Dec
0
0
3
27
*
4
3
2
1
1
*
1
1
1
1
1

Ann
17
79
13
116
2
60
53
43
30
19
8
4
3
3
2
4

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January

77
-1
.16
1.54

February

82
3
.27
1.40

March

90
10
.50
3.04

April

93
24
1.02
3.57

May

99
36
1.46
6.59

June

106
48
1.66
5.33

July

108
55
.54
3.54

August

107
52
.96
4.57

September
102
37
.98
4.99

October

94
26
.74
3.82

November

84
13
.05
2.67

December

76
2
.23
1.47

Annual

110
-5
21.80
32.61

Monthly Extremes

 

Temperature (F) (1920-2005)

Precipitation (inches) (1920-2005)

Snowfall (1920-2005)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan
85
( 5th, 1927)
-18
( 4th, 1947)
3.75" (1949)
2.51" ( 4th, 2005)
23.3" (1949)
8.0" ( 9th, 1930)
25.0" ( 8th, 1930)

Feb
91
(23rd, 1996)
-16
( 4th, 1996)
3.55" (1948)
2.45" (27th, 1948)
17.0" (1968)
11.0" (21st, 1971)
11.0" (21st, 1971)

Mar
97
( 6th, 1929)
-5
( 4th, 1989)
6.85" (2000)
3.90" (28th, 1989)
21.0" (1924)
8.0" ( 9th, 1994)
11.0" ( 2nd, 1960)

Apr
101
(12th, 1972)
17
( 3rd, 1975)
11.80" (1997)
3.20" ( 4th, 1997)
5.0" (1973)
5.0" ( 8th, 1973)
3.0" ( 8th, 1973)

May
107
(23rd, 1953)
29
( 1st, 1960)
12.46" (2001)
5.00" (26th, 1959)
.0" (1949)
.0" (20th, 1949)
.0" -

Jun
115
(26th, 1980)
42
( 1st, 1964)
11.90" (1962)
7.50" (11th, 1983)
.0" -
.0" -
.0" -

Jul
111
(14th, 1954)
48
(28th, 2005)
10.67" (1950)
5.35" (24th, 1975)
.0" -
.0" -
.0" -

Aug
115
( 6th, 1951)
46
(16th, 1994)
7.49" (1997)
5.79" (26th, 1969)
.0" -
.0" -
.0" -

Sep
108
( 3rd, 1947)
29
(24th, 1989)
12.27" (1923)
6.56" (23rd, 1997)
.0" -
.0" -
.0" -

Oct
100
( 4th, 2000)
12
(31st, 1993)
9.58" (1923)
4.25" ( 3rd, 1986)
2.2" (1941)
2.2" (31st, 1941)
.1" (25th, 1932)

Nov
92
( 4th, 2005)
5
( 3rd, 1991)
9.90" (1964)
3.23" (20th, 1994)
11.0" (1972)
8.0" (19th, 1972)
4.0" (19th, 1972)

Dec
86
(24th, 1955)
-9
(23rd, 1989)
5.38" (1959)
2.14" (17th, 1959)
14.0" (1932)
10.0" ( 3rd, 1971)
8.0" (15th, 1932)

Annual
115
(Jun 26, 1980)
-18
(Jan 4, 1947)
12.46" (May 2001)
7.50" (Jun 11, 1983)
23.3" (Jan 1949)
11.0" (Feb 21, 1971)
25.0" (Jan 8, 1930)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

October  29
October  19
October   8

2 Years in 10
November   4
October  23
October  12

5 Years in 10
November  12
November   3
October  24

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

April  10
April  14
April  28

2 Years in 10
April   5
April  10
April  22

5 Years in 10
March  23
April   1
April  15

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10
212
194
172

8 Years in 10
218
200
177

5 Years in 10
235
217
192

2 Years in 10
250
232
207

1 Year in 10

265
244
212

Precipitation Quantiles (Inches)

PERCENT

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

ANNUAL

MEAN
.83
.99
2.10
2.35
4.63
3.80
2.07
2.74
3.11
2.24
1.66
1.09
27.46

10%
.05
.05
.20
.45
.99
1.04
.22
.56
.84
.38
.00
.06
18.72

20%
.16
.27
.50
1.02
1.46
1.66
.54
.96
.98
.74
.05
.23
21.80

30%
.40
.44
.72
1.49
2.26
1.92
1.20
1.32
1.40
.96
.43
.30
23.53

40%
.51
.60
1.18
1.71
2.92
2.60
1.41
1.67
1.61
1.43
.68
.44
24.30

50%
.65
.74
1.46
1.96
3.55
3.44
1.56
2.41
2.30
1.98
1.10
.57
25.22

60%
.86
1.00
1.96
2.47
4.45
3.93
2.10
3.05
2.89
2.28
1.39
.75
27.08

70%
1.00
1.17
2.36
2.86
5.26
4.62
2.85
3.73
3.45
3.06
1.82
1.12
27.64

80%
1.54
1.40
3.04
3.57
6.59
5.33
3.54
4.57
4.99
3.82
2.67
1.47
32.61

90%
2.00
2.40
3.60
4.09
9.33
6.65
4.42
6.07
6.90
5.63
3.87
2.84
35.29