coop station summary

Cooperative Observer Station Summary

GRT SALT PLAINS DAM (343740)

*
ALFALFA County

Climate Division: 2

*
Latitude: 3645N; Longitude: 09808W

Elevation: 1199 ft

*
Precipitation Period of Record:

19460314-20040531 ( 97%)

*
Temperature Period of Record:

19460312-20040531 ( 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
NA NA NA .79 1.9

February
NA NA NA 1.06 2.7

March
NA NA NA 2.82 .9

April
NA NA NA 2.72 .1

May
NA NA NA 4.42 .0

June
NA NA NA 3.74 .0

July
NA NA NA 3.01 .0

August
NA NA NA NA .0

September
NA NA NA 2.76 .0

October
NA NA NA 2.76 .0

November
NA NA NA 2.11 .4

December
NA NA NA .97 1.5

Annual
NA NA NA 30.65 7.2

Monthly Averages (1971-2000)
	Temperature (deg Fahrenheit)	Precipitation (inches)	Snowfall and Sleet (inches)
	Daily Max	Daily Min	Daily Avg	Monthly Average	Monthly Average
January	NA	NA	NA	.79	1.9
February	NA	NA	NA	1.06	2.7
March	NA	NA	NA	2.82	.9
April	NA	NA	NA	2.72	.1
May	NA	NA	NA	4.42	.0
June	NA	NA	NA	3.74	.0
July	NA	NA	NA	3.01	.0
August	NA	NA	NA	NA	.0
September	NA	NA	NA	2.76	.0
October	NA	NA	NA	2.76	.0
November	NA	NA	NA	2.11	.4
December	NA	NA	NA	.97	1.5
Annual	NA	NA	NA	30.65	7.2

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
NA NA NA NA NA 6 3 2 1 1 * 1 1 1 1 NA

Feb
NA NA NA NA NA 5 4 2 1 1 * 1 1 1 * NA

Mar
NA NA NA NA NA 7 6 4 3 2 1 * * * * NA

Apr
NA NA NA NA NA 8 7 5 3 2 1 * * * * 0

May
NA NA NA NA NA 10 9 7 5 3 1 0 0 0 0 0

Jun
NA NA NA NA NA 9 8 6 4 3 1 0 0 0 0 0

Jul
NA NA NA NA NA 6 6 4 3 2 1 0 0 0 0 0

Aug
NA NA NA NA NA NA NA NA NA NA NA 0 0 0 0 0

Sep
NA NA NA NA NA 7 6 4 3 2 1 0 0 0 0 0

Oct
NA NA NA NA NA 6 5 3 2 1 1 0 0 0 0 0

Nov
NA NA NA NA NA 6 5 3 2 1 1 * * * * NA

Dec
NA NA NA NA NA 5 4 2 1 1 * 1 1 1 1 NA

Ann
NA NA NA NA NA 84 70 47 32 20 9 3 2 2 2 NA

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	NA	NA	NA	NA	NA	6	3	2	1	1	*	1	1	1	1	NA
Feb	NA	NA	NA	NA	NA	5	4	2	1	1	*	1	1	1	*	NA
Mar	NA	NA	NA	NA	NA	7	6	4	3	2	1	*	*	*	*	NA
Apr	NA	NA	NA	NA	NA	8	7	5	3	2	1	*	*	*	*	0
May	NA	NA	NA	NA	NA	10	9	7	5	3	1	0	0	0	0	0
Jun	NA	NA	NA	NA	NA	9	8	6	4	3	1	0	0	0	0	0
Jul	NA	NA	NA	NA	NA	6	6	4	3	2	1	0	0	0	0	0
Aug	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0	0	0	0	0
Sep	NA	NA	NA	NA	NA	7	6	4	3	2	1	0	0	0	0	0
Oct	NA	NA	NA	NA	NA	6	5	3	2	1	1	0	0	0	0	0
Nov	NA	NA	NA	NA	NA	6	5	3	2	1	1	*	*	*	*	NA
Dec	NA	NA	NA	NA	NA	5	4	2	1	1	*	1	1	1	1	NA
Ann	NA	NA	NA	NA	NA	84	70	47	32	20	9	3	2	2	2	NA

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January
73 -2 .09 1.18

February
79 3 .16 1.92

March
87 12 .64 3.27

April
93 27 1.06 3.98

May
100 38 1.59 5.79

June
105 50 1.75 5.61

July
108 57 1.10 5.13

August
108 55 1.14 5.54

September
103 41 1.05 4.74

October
95 30 .71 4.00

November
82 15 .26 2.91

December
74 3 .24 1.57

Annual
109 -5 22.05 34.47

Exceedence Values (2 in 10 years)
Month	Maximum Temperature Higher Than:	Minimum Temperature Lower Than:	Precipitation Less Than:	Precipitation Greater Than:
January	73	-2	.09	1.18
February	79	3	.16	1.92
March	87	12	.64	3.27
April	93	27	1.06	3.98
May	100	38	1.59	5.79
June	105	50	1.75	5.61
July	108	57	1.10	5.13
August	108	55	1.14	5.54
September	103	41	1.05	4.74
October	95	30	.71	4.00
November	82	15	.26	2.91
December	74	3	.24	1.57
Annual	109	-5	22.05	34.47

Monthly Extremes

Temperature (F) (1946-2004)

Precipitation (inches) (1946-2004)

Snowfall (1946-2004)

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan
83 (22nd, 1967) -13 ( 4th, 1947) 2.75" (1999) 1.80" (31st, 1975) 14.5" (1962) 6.0" ( 6th, 1988) 12.0" ( 7th, 1988)

Feb
93 (23rd, 1996) -7 ( 6th, 1982) 3.33" (2001) 2.00" (23rd, 2001) 24.0" (1982) 14.0" (22nd, 1971) 14.0" (22nd, 1971)

Mar
92 (18th, 1994) -3 (11th, 1948) 9.87" (1973) 3.00" ( 3rd, 1988) 14.5" (1999) 13.0" (14th, 1999) 16.0" (18th, 1988)

Apr
98 ( 6th, 1954) 21 ( 3rd, 1975) 8.39" (1970) 4.54" (18th, 1970) 2.0" (1973) 2.0" ( 8th, 1973) 2.0" ( 8th, 1973)

May
105 (31st, 1953) 31 ( 3rd, 1954) 14.81" (1993) 4.02" ( 5th, 1987) .0" (1951) .0" (20th, 1951) .0" -

Jun
114 (15th, 1953) 41 ( 3rd, 1946) 10.48" (1999) 3.78" (23rd, 1957) .0" - .0" - .0" -

Jul
114 (14th, 1954) 52 (24th, 1947) 9.91" (1979) 4.66" (29th, 1950) .0" - .0" - .0" -

Aug
111 ( 7th, 1946) 49 (31st, 1988) 12.78" (1995) 6.74" ( 3rd, 1995) .0" - .0" - .0" -

Sep
110 ( 4th, 1947) 34 (30th, 1985) 8.98" (1987) 3.96" (28th, 1987) .0" - .0" - .0" -

Oct
101 ( 3rd, 1951) 14 (31st, 1993) 14.71" (1998) 5.55" ( 3rd, 2002) .0" (1951) .0" (31st, 1951) .0" -

Nov
88 ( 9th, 1980) 9 (26th, 1975) 7.87" (1964) 4.27" ( 1st, 1998) 10.2" (1951) 6.0" (20th, 1988) 6.0" (20th, 1988)

Dec
82 ( 7th, 1966) -12 (22nd, 1989) 3.56" (1999) 2.90" ( 4th, 1947) 14.0" (2002) 10.0" (13th, 2003) 10.0" (15th, 1987)

Annual
114 (Jun 15, 1953) -13 (Jan 4, 1947) 14.81" (May 1993) 6.74" (Aug 3, 1995) 24.0" (Feb 1982) 14.0" (Feb 22, 1971) 16.0" (Mar 18, 1988)

Monthly Extremes
	Temperature (F) (1946-2004)	Precipitation (inches) (1946-2004)	Snowfall (1946-2004)
	Record High	Record Low	Monthly Max	Daily Max	Monthly Max	Daily Max	Greatest Depth
Jan	83	(22nd, 1967)	-13	( 4th, 1947)	2.75" (1999)	1.80" (31st, 1975)	14.5" (1962)	6.0" ( 6th, 1988)	12.0" ( 7th, 1988)
Feb	93	(23rd, 1996)	-7	( 6th, 1982)	3.33" (2001)	2.00" (23rd, 2001)	24.0" (1982)	14.0" (22nd, 1971)	14.0" (22nd, 1971)
Mar	92	(18th, 1994)	-3	(11th, 1948)	9.87" (1973)	3.00" ( 3rd, 1988)	14.5" (1999)	13.0" (14th, 1999)	16.0" (18th, 1988)
Apr	98	( 6th, 1954)	21	( 3rd, 1975)	8.39" (1970)	4.54" (18th, 1970)	2.0" (1973)	2.0" ( 8th, 1973)	2.0" ( 8th, 1973)
May	105	(31st, 1953)	31	( 3rd, 1954)	14.81" (1993)	4.02" ( 5th, 1987)	.0" (1951)	.0" (20th, 1951)	.0" -
Jun	114	(15th, 1953)	41	( 3rd, 1946)	10.48" (1999)	3.78" (23rd, 1957)	.0" -	.0" -	.0" -
Jul	114	(14th, 1954)	52	(24th, 1947)	9.91" (1979)	4.66" (29th, 1950)	.0" -	.0" -	.0" -
Aug	111	( 7th, 1946)	49	(31st, 1988)	12.78" (1995)	6.74" ( 3rd, 1995)	.0" -	.0" -	.0" -
Sep	110	( 4th, 1947)	34	(30th, 1985)	8.98" (1987)	3.96" (28th, 1987)	.0" -	.0" -	.0" -
Oct	101	( 3rd, 1951)	14	(31st, 1993)	14.71" (1998)	5.55" ( 3rd, 2002)	.0" (1951)	.0" (31st, 1951)	.0" -
Nov	88	( 9th, 1980)	9	(26th, 1975)	7.87" (1964)	4.27" ( 1st, 1998)	10.2" (1951)	6.0" (20th, 1988)	6.0" (20th, 1988)
Dec	82	( 7th, 1966)	-12	(22nd, 1989)	3.56" (1999)	2.90" ( 4th, 1947)	14.0" (2002)	10.0" (13th, 2003)	10.0" (15th, 1987)
Annual	114	(Jun 15, 1953)	-13	(Jan 4, 1947)	14.81" (May 1993)	6.74" (Aug 3, 1995)	24.0" (Feb 1982)	14.0" (Feb 22, 1971)	16.0" (Mar 18, 1988)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10
November 2 October 30 October 18

2 Years in 10
November 6 November 3 October 25

5 Years in 10
November 21 November 11 November 3

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 12 April 14

2 Years in 10
March 26 April 6 April 12

5 Years in 10
March 16 March 26 April 4

First Freezing Temperature in Fall
Probability	24 F or Lower	28 F or Lower	32 F or Lower
1 Year in 10	November 2	October 30	October 18
2 Years in 10	November 6	November 3	October 25
5 Years in 10	November 21	November 11	November 3
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 12	April 14
2 Years in 10	March 26	April 6	April 12
5 Years in 10	March 16	March 26	April 4

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10
229 211 195

8 Years in 10
232 216 201

5 Years in 10
246 228 213

2 Years in 10
267 243 224

1 Year in 10
281 247 231

GRT SALT PLAINS DAM (343740)
*	ALFALFA County	Climate Division: 2
*	Latitude: 3645N; Longitude: 09808W	Elevation: 1199 ft
*	Precipitation Period of Record:	19460314-20040531 ( 97%)
*	Temperature Period of Record:	19460312-20040531 ( 94%)

Probability	Higher Than 24 F	Higher Than 28 F	Higher Than 32 F
Number of Days in Growing Season
9 Years in 10	229	211	195
8 Years in 10	232	216	201
5 Years in 10	246	228	213
2 Years in 10	267	243	224
1 Year in 10	281	247	231