OK08 Coop Summary

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Cooperative Observer Station Summary

BLACKWELL 2 E (340818)
*

KAY County

Climate Division: 2
*

Latitude: 3648N;     Longitude: 09717W

Elevation: 999 ft
*

Precipitation Period of Record:

1953/05-2010/10 ( 96%)
*

Temperature Period of Record:

1954/05-2010/10 ( 94%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

44.1
23.6
33.6
1.12
3.1

February

50.8
28.3
39.3
1.22
2.8

March

60.6
37.1
48.6
3.06
1.0

April

70.3
45.9
57.8
3.78
.0

May

78.9
55.9
67.2
4.93
.0

June

89.1
65.0
76.8
4.35
.0

July

94.9
69.9
82.1
3.57
.0

August

93.8
68.8
81.0
3.57
.0

September
84.9
61.3
72.9
3.48
.0

October

73.3
49.2
61.0
2.79
.0

November

57.8
36.7
47.1
2.58
.4

December

47.0
27.1
36.8
1.44
2.0

Annual

70.6
47.5
58.8
35.92
9.2

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
6
26
1
8
5
3
1
1
*
4
2
2
1
4

Feb
0
*
3
19
*
8
5
2
2
1
*
4
2
2
1
3

Mar
0
0
*
11
0
10
7
5
4
2
1
1
1
*
*
1

Apr
0
*
0
2
0
10
8
6
4
2
1
*
0
0
0
*

May
*
3
0
0
0
12
9
7
5
3
2
0
0
0
0
0

Jun
2
15
0
0
0
11
9
6
5
3
1
0
0
0
0
0

Jul
8
24
0
0
0
8
7
5
3
2
1
0
0
0
0
0

Aug
8
23
0
0
0
9
7
5
3
2
1
0
0
0
0
0

Sep
2
11
0
*
0
9
7
5
3
2
1
0
0
0
0
0

Oct
0
1
0
1
0
8
6
4
3
2
1
*
0
0
0
*

Nov
0
0
*
11
0
9
6
4
3
2
1
1
*
*
*
1

Dec
0
0
3
23
1
8
5
3
2
1
*
3
1
1
1
3

Ann
20
77
13
91
2
110
79
54
37
23
10
14
5
5
4
13

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January

71
0
.32
1.80

February

77
3
.36
2.03

March

87
12
1.09
4.57

April

91
27
1.39
5.36

May

98
38
2.20
7.12

June

103
50
2.46
6.82

July

108
56
1.80
6.75

August

107
54
1.47
5.35

September
103
41
1.58
5.21

October

93
29
1.20
5.16

November

80
15
.25
3.63

December

72
4
.38
2.19

Annual

109
-5
27.20
43.50

Monthly Extremes

 

Temperature (F) (1954-2010)

Precipitation (inches) (1953-2010)

Snowfall (1953-2010)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan
78
(22nd, 1967)
-10
(19th, 1984)
4.50" (2005)
2.50" ( 5th, 2005)
21.5" (1987)
8.0" (21st, 1987)
10.0" ( 7th, 1988)

Feb
92
(22nd, 1996)
-8
( 6th, 1982)
4.57" (1997)
3.45" (21st, 1997)
17.5" (2003)
14.0" (22nd, 1971)
15.0" (24th, 2003)

Mar
91
(11th, 1967)
0
( 3rd, 1960)
9.86" (2007)
3.50" (18th, 1992)
7.5" (2010)
6.5" (21st, 2010)
8.0" ( 3rd, 1960)

Apr
98
(18th, 2006)
19
( 3rd, 1975)
8.59" (1991)
3.70" (29th, 2006)
1.0" (2007)
1.0" (14th, 2007)
1.0" (14th, 2007)

May
104
(10th, 1967)
33
( 1st, 1960)
11.16" (1993)
4.00" (27th, 2008)
.0" -
.0" -
.0" -

Jun
109
(30th, 1956)
43
(13th, 1974)
11.60" (2007)
4.90" (11th, 1989)
.0" -
.0" -
.0" -

Jul
114
(29th, 1986)
49
(14th, 1990)
13.57" (1959)
4.40" (31st, 1979)
.0" -
.0" -
.0" -

Aug
114
( 5th, 1956)
46
(29th, 1988)
11.79" (1974)
6.85" (18th, 2009)
.0" -
.0" -
.0" -

Sep
108
( 3rd, 2000)
29
(30th, 1984)
10.82" (1961)
6.11" (13th, 1961)
.0" -
.0" -
.0" -

Oct
98
( 5th, 1956)
15
(31st, 1993)
12.25" (1998)
5.74" ( 2nd, 1955)
.0" (1993)
.0" (26th, 1962)
.0" -

Nov
87
( 8th, 1980)
8
(26th, 1975)
8.26" (1964)
5.68" (21st, 1979)
5.0" (1988)
6.0" (19th, 1972)
6.0" (19th, 1972)

Dec
80
(24th, 1955)
-12
(22nd, 1989)
4.40" (1984)
1.87" (24th, 1965)
10.5" (2002)
9.0" ( 1st, 2006)
9.0" (15th, 1987)

Annual
114
(Jul 29, 1986)
-12
(Dec 22, 1989)
13.57" (Jul 1959)
6.85" (Aug 18, 2009)
21.5" (Jan 1987)
14.0" (Feb 22, 1971)
15.0" (Feb 24, 2003)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

November   3
October  25
October  14

2 Years in 10
November  10
November   2
October  19

5 Years in 10
November  21
November  11
October  28

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

March  31
April  11
April  21

2 Years in 10
March  25
April   5
April  15

5 Years in 10
March  14
March  25
April   6

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10
231
209
185

8 Years in 10
238
216
191

5 Years in 10
249
231
205

2 Years in 10
268
246
221

1 Year in 10

277
258
228

Precipitation Quantiles (Inches)

PERCENT

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

ANNUAL

MEAN
1.12
1.22
3.06
3.78
4.93
4.35
3.57
3.57
3.48
2.79
2.58
1.44
35.92

10%
.09
.12
.79
.91
1.35
2.04
.62
1.02
.82
.95
.01
.17
25.02

20%
.32
.36
1.09
1.39
2.20
2.46
1.80
1.47
1.58
1.20
.25
.38
27.20

30%
.52
.54
1.39
2.07
2.82
2.73
2.32
2.01
2.04
1.55
.68
.78
30.26

40%
.71
.72
1.85
2.47
3.29
3.04
3.16
2.28
2.77
2.39
1.18
1.16
32.75

50%
.84
.93
2.46
3.11
4.26
3.70
3.36
2.86
3.52
2.85
1.55
1.52
34.43

60%
1.02
1.27
2.77
3.66
4.74
4.35
4.43
3.53
3.84
3.19
2.25
1.62
36.71

70%
1.17
1.66
3.64
4.01
5.96
5.62
5.11
4.39
4.90
3.77
2.75
2.00
41.27

80%
1.80
2.03
4.57
5.36
7.12
6.82
6.75
5.35
5.21
5.16
3.63
2.19
43.50

90%
2.91
2.77
5.53
7.08
8.81
8.27
8.37
8.98
6.64
5.80
5.19
3.21
52.23