OK66 Coop Summary

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Cooperative Observer Station Summary

OKEMAH (346638)

*

OKFUSKEE County

Climate Division: 5

*

Latitude: 3526N;     Longitude: 09618W

Elevation: 934 ft

*

Precipitation Period of Record:

1912/04-2010/10 ( 99%)

*

Temperature Period of Record:

1912/04-2010/10 ( 98%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

48.6
28.4
38.3
1.63
2.0

February

54.8
33.1
43.7
2.14
1.1

March

64.3
41.6
52.7
3.54
.8

April

73.4
50.1
61.5
3.98
.0

May

80.3
59.0
69.4
5.69
.0

June

87.8
66.8
77.1
4.84
.0

July

93.8
70.8
82.1
2.98
.0

August

93.8
69.6
81.5
2.42
.0

September

85.4
62.8
73.8
4.98
.0

October

74.9
52.1
63.2
3.88
.0

November

61.1
40.8
50.7
3.57
.4

December

51.2
31.7
41.2
2.47
.5

Annual

72.7
50.8
61.5
42.09
5.2

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
4
20
*
6
5
3
2
1
*
2
1
1
1
1

Feb

0
*
2
13
*
6
6
4
2
1
1
1
1
1
*
1

Mar

0
*
*
6
0
8
7
6
4
3
1
*
*
*
*
*

Apr

0
*
0
1
0
8
7
6
4
3
1
0
0
0
0
0

May

0
2
0
0
0
9
9
7
5
4
2
0
0
0
0
0

Jun

*
13
0
0
0
8
8
6
5
3
2
0
0
0
0
0

Jul

5
24
0
0
0
6
5
4
3
2
1
0
0
0
0
0

Aug

6
24
0
0
0
6
5
4
3
2
1
0
0
0
0
0

Sep

1
11
0
0
0
7
7
6
4
3
1
0
0
0
0
0

Oct

0
1
0
*
0
7
6
5
3
2
1
*
*
*
0
*

Nov

0
0
*
6
0
6
6
5
3
2
1
1
*
*
*
*

Dec

0
0
2
16
*
7
6
4
3
2
1
1
*
*
*
1

Ann

12
75
8
61
*
84
77
59
43
28
13
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

75
2
.61
2.65

February

80
8
.74
2.88

March

86
17
1.50
4.58

April

89
30
2.21
5.96

May

94
41
2.80
7.53

June

100
52
2.38
7.42

July

106
59
.90
4.93

August

106
57
1.04
4.39

September

101
43
1.57
6.82

October

93
31
1.12
6.24

November

82
19
.80
4.37

December

75
6
.74
3.34

Annual

108
-1
32.83
47.00

Monthly Extremes

 

Temperature (F) (1912-2010)

Precipitation (inches) (1912-2010)

Snowfall (1912-2010)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan

82
(24th, 1943)
-10
(18th, 1930)
8.87" (1916)
5.34" (31st, 1923)
25.0" (1937)
15.0" (21st, 1937)
12.0" ( 7th, 1988)

Feb

93
(22nd, 1996)
-6
( 8th, 1933)
7.00" (1938)
4.21" ( 1st, 1983)
11.0" (1927)
7.0" (27th, 1945)
10.0" (19th, 1921)

Mar

94
(21st, 1916)
-2
(12th, 1948)
8.75" (1990)
3.62" ( 4th, 2004)
12.5" (1968)
10.5" ( 6th, 1989)
10.0" (12th, 1968)

Apr

99
(12th, 1972)
21
( 2nd, 1936)
17.78" (1945)
10.05" (14th, 1945)
.0" (1916)
.0" ( 8th, 1916)
.1" ( 8th, 1938)

May

97
(31st, 1934)
35
( 3rd, 1954)
14.91" (1943)
5.50" (18th, 1949)
.0" -
.0" -
.0" -

Jun

108
(21st, 1936)
45
( 1st, 1983)
15.67" (1948)
6.76" (23rd, 1948)
.0" -
.0" -
.0" -

Jul

114
(19th, 1936)
53
(31st, 1971)
11.49" (1950)
6.14" (28th, 1988)
.0" -
.0" -
.0" -

Aug

115
(10th, 1936)
49
(31st, 1915)
10.12" (1915)
6.40" (20th, 2007)
.0" -
.0" -
.0" -

Sep

111
( 3rd, 1939)
34
(27th, 1942)
13.65" (1993)
6.68" (14th, 1993)
.0" -
.0" -
.0" -

Oct

98
( 1st, 1913)
17
(30th, 1917)
20.87" (1941)
6.60" (30th, 1941)
3.0" (1913)
3.0" (27th, 1913)
.0" -

Nov

88
( 6th, 1945)
11
(13th, 1940)
9.53" (1931)
4.30" (21st, 1979)
4.0" (1980)
4.0" (17th, 1980)
1.0" (18th, 1972)

Dec

83
(13th, 1948)
-9
(23rd, 1989)
7.45" (1932)
5.90" (23rd, 1932)
26.5" (2009)
10.0" (25th, 2009)
6.0" (30th, 1969)

Annual

115
(Aug 10, 1936)
-10
(Jan 18, 1930)
20.87" (Oct 1941)
10.05" (Apr 14, 1945)
26.5" (Dec 2009)
15.0" (Jan 21, 1937)
12.0" (Jan 7, 1988)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

November   5
November   2
October  23

2 Years in 10

November  12
November   5
October  30

5 Years in 10

November  28
November  15
November   7

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

March  29
April   3
April  13

2 Years in 10

March  23
March  29
April   9

5 Years in 10

March   8
March  18
March  29

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10

233
221
201

8 Years in 10

241
226
208

5 Years in 10

263
245
225

2 Years in 10

287
262
237

1 Year in 10

305
272
244

Precipitation Quantiles (Inches)

PERCENT

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

ANNUAL

MEAN

1.63
2.14
3.54
3.98
5.69
4.84
2.98
2.42
4.98
3.88
3.57
2.47
42.09

10%

.29
.40
.99
1.58
1.90
1.70
.25
.83
1.06
.76
.51
.47
28.27

20%

.61
.74
1.50
2.21
2.80
2.38
.90
1.04
1.57
1.12
.80
.74
32.83

30%

.85
1.14
2.00
2.86
3.18
3.11
1.29
1.33
2.28
1.81
1.29
1.20
35.17

40%

1.34
1.26
2.53
3.34
3.88
3.65
1.97
1.87
2.76
2.19
1.76
1.42
37.35

50%

1.61
1.73
2.91
3.78
4.83
4.63
2.63
2.41
3.27
2.93
2.37
1.73
39.24

60%

1.99
2.11
3.28
4.42
5.67
5.32
3.31
2.87
4.58
3.79
2.95
2.04
41.62

70%

2.30
2.40
3.48
5.23
6.37
6.11
3.98
3.44
5.55
4.72
3.43
2.63
43.99

80%

2.65
2.88
4.58
5.96
7.53
7.42
4.93
4.39
6.82
6.24
4.37
3.34
47.00

90%

3.40
3.87
5.41
7.67
9.60
9.02
7.24
6.37
8.30
7.63
5.83
4.65
52.07