OK73 Coop Summary

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Cooperative Observer Station Summary

RALSTON (347390)

*

PAWNEE County

Climate Division: 3

*

Latitude: 3630N;     Longitude: 09644W

Elevation: 824 ft

*

Precipitation Period of Record:

1922/06-2010/10 ( 97%)

*

Temperature Period of Record:

1959/04-2010/10 ( 99%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

47.3
23.6
35.2
1.29
3.1

February

53.9
28.6
41.0
1.78
3.2

March

63.4
37.8
50.3
3.44
1.5

April

73.3
46.9
59.8
3.66
.1

May

80.4
56.6
68.2
5.46
.0

June

88.2
65.3
76.5
4.24
.0

July

94.0
69.3
81.4
3.14
.0

August

93.6
67.7
80.4
3.54
.0

September

85.4
59.9
72.4
4.32
.0

October

75.0
47.9
61.2
3.18
.0

November

60.5
36.3
48.2
2.71
.6

December

49.8
26.7
38.0
1.89
1.8

Annual

72.1
47.3
59.5
38.54
10.6

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
4
25
1
7
5
3
2
1
*
4
2
2
1
4

Feb

0
*
2
18
*
7
5
4
2
1
*
3
2
2
1
3

Mar

0
*
*
10
0
9
7
6
4
3
1
2
1
1
*
1

Apr

*
1
0
2
0
9
7
6
4
2
1
*
*
*
*
*

May

0
3
0
0
0
11
9
7
5
4
2
0
0
0
0
0

Jun

1
14
0
0
0
9
8
6
5
3
1
0
0
0
0
0

Jul

5
26
0
0
0
7
6
5
3
2
1
0
0
0
0
0

Aug

6
23
0
0
0
7
6
5
3
2
1
0
0
0
0
0

Sep

1
11
0
*
0
8
7
5
4
3
1
0
0
0
0
0

Oct

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

Nov

0
0
*
11
0
8
6
4
3
2
1
1
*
*
*
1

Dec

0
0
3
22
*
7
5
3
3
1
1
3
1
1
1
3

Ann

13
78
10
92
2
94
76
59
42
26
12
13
6
5
4
12

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January

75
-3
.35
2.00

February

80
2
.58
2.06

March

87
12
1.01
4.11

April

92
25
1.55
5.10

May

94
35
2.71
7.58

June

99
49
2.52
6.19

July

105
55
.94
4.88

August

106
53
1.45
5.45

September

101
37
1.60
6.16

October

93
26
.99
4.27

November

83
13
.59
4.30

December

75
-1
.53
2.32

Annual

108
-5
29.09
42.68

Monthly Extremes

 

Temperature (F) (1959-2010)

Precipitation (inches) (1922-2010)

Snowfall (1922-2010)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan

80
( 7th, 1965)
-11
(10th, 1977)
5.55" (1949)
1.81" ( 5th, 2005)
15.0" (1987)
6.0" (18th, 1987)
10.0" (19th, 1987)

Feb

92
(22nd, 1996)
-15
( 4th, 1996)
5.41" (1985)
2.50" (23rd, 1985)
12.5" (1980)
12.0" ( 8th, 1980)
10.0" ( 8th, 1929)

Mar

93
(31st, 1974)
-1
( 8th, 1967)
8.63" (2007)
3.85" ( 5th, 2004)
13.5" (1970)
11.0" ( 8th, 1994)
11.0" ( 8th, 1994)

Apr

100
(12th, 1972)
18
( 3rd, 1975)
11.02" (1942)
4.50" (10th, 1944)
6.0" (1938)
6.0" ( 8th, 1938)
6.0" ( 8th, 1938)

May

97
(17th, 1972)
29
( 1st, 1960)
19.82" (1943)
5.98" (17th, 1943)
.0" -
.0" -
.0" -

Jun

105
(26th, 1980)
44
( 1st, 1983)
15.55" (1957)
5.61" (29th, 2007)
.0" -
.0" -
.0" -

Jul

112
( 6th, 1996)
49
(31st, 1971)
13.83" (1997)
7.15" (18th, 1997)
.0" -
.0" -
.0" -

Aug

110
( 4th, 1964)
43
(29th, 1988)
11.34" (1974)
6.95" (10th, 1974)
.0" (1929)
.0" (10th, 1929)
.0" -

Sep

109
( 2nd, 2000)
30
(30th, 1984)
13.37" (1945)
7.75" (30th, 1986)
.0" -
1.4" (20th, 1947)
.0" -

Oct

98
( 8th, 1979)
13
(31st, 1993)
10.44" (1941)
4.85" ( 5th, 1998)
.0" (1957)
.0" (29th, 1925)
.1" (29th, 1925)

Nov

88
(11th, 1989)
6
(29th, 1976)
8.39" (1931)
3.82" (17th, 1928)
7.5" (1972)
5.0" (19th, 1972)
2.0" ( 7th, 1938)

Dec

80
( 7th, 1966)
-13
(23rd, 1989)
5.36" (1984)
2.36" (20th, 1991)
15.0" (2009)
13.0" (25th, 2009)
13.0" (25th, 2009)

Annual

112
(Jul 6, 1996)
-15
(Feb 4, 1996)
19.82" (May 1943)
7.75" (Sep 30, 1986)
15.0" (Jan 1987)
13.0" (Dec 25, 2009)
13.0" (Dec 25, 2009)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

October  27
October  20
October   8

2 Years in 10

November   3
October  24
October  12

5 Years in 10

November  11
November   4
October  21

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

April   6
April  15
April  22

2 Years in 10

April   2
April  11
April  15

5 Years in 10

March  18
April   2
April   7

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10

213
195
177

8 Years in 10

221
202
182

5 Years in 10

236
214
197

2 Years in 10

256
234
206

1 Year in 10

268
238
220

Precipitation Quantiles (Inches)

PERCENT

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

ANNUAL

MEAN

1.29
1.78
3.44
3.66
5.46
4.24
3.14
3.54
4.32
3.18
2.71
1.89
38.54

10%

.13
.41
.63
1.08
1.70
1.92
.47
.87
.84
.57
.19
.24
23.99

20%

.35
.58
1.01
1.55
2.71
2.52
.94
1.45
1.60
.99
.59
.53
29.09

30%

.55
.77
1.32
1.94
3.16
2.88
1.76
2.27
2.18
1.72
.90
.87
30.76

40%

.73
1.00
1.80
2.54
3.41
3.72
2.19
2.55
3.13
1.99
1.28
1.02
32.52

50%

.94
1.25
2.26
2.92
4.12
4.16
2.54
3.00
3.53
2.48
1.87
1.32
34.98

60%

1.14
1.48
2.81
3.72
4.91
5.06
3.12
3.43
4.26
2.67
2.31
1.62
37.83

70%

1.54
1.61
3.26
4.50
6.20
5.45
3.99
4.49
4.93
3.05
3.83
2.04
40.52

80%

2.00
2.06
4.11
5.10
7.58
6.19
4.88
5.45
6.16
4.27
4.30
2.32
42.68

90%

2.67
2.88
5.68
6.72
9.01
8.29
7.17
7.37
8.21
5.80
5.07
3.53
45.40