Mesonet Station Summary

CAUTION: Mesonet data are only available since 1994, a period considered too short to give reliable climate statistics for temperature and precipitation. Cooperative observer sites are strongly recommended for these purposes. Other variables, such as humidity, soil temperatures, and winds, are not available from cooperative observer sites and Mesonet represents the best-available information.

PERK     Perkins (Perkins 2.0 NNW)
*	Payne County	Climate Division: 5
*	Latitude: 3559N;     Longitude: 9702W	Elevation: 958 ft
*	Period of Record:	19940101-20041231

Monthly Averages (1994-2004)
	Temperature (deg Fahrenheit)			Precipitation (inches)	Wind (Miles Per Hour)		Solar Radiation
	Daily Max	Daily Min	Daily Avg	Monthly Average	Direction	Speed	Daily Avg (MJ/m2)
January	48.4	27.6	38.0	1.37	N	8.8	9.2
February	54.3	31.5	42.9	2.13	N	9.3	12.0
March	60.6	38.2	49.4	3.84	SSE	10.2	15.6
April	71.4	48.2	59.8	5.25	SSE	10.7	19.3
May	80.2	58.7	69.5	5.16	SSE	9.6	21.7
June	87.0	66.5	76.8	5.47	SE	9.1	23.0
July	93.5	71.5	82.5	4.61	SSE	8.4	24.4
August	93.3	70.4	81.9	3.25	SSE	7.5	21.9
September	84.1	61.8	72.9	3.86	SE	7.7	17.4
October	72.9	51.1	62.0	3.35	SE	8.5	13.3
November	59.6	38.9	49.3	4.00	SSE	8.7	9.2
December	50.5	30.4	40.4	2.08	NW	8.6	8.3
Annual	71.4	49.6	60.5	44.09	SSE	8.9	16.3

Monthly Extremes (1994-2004)
	Temperature (F)				Precipitation (inches)			Wind Speed
	Record High		Record Low		Monthly Max	Daily Max	Rain Rate (in/hr)	Peak Gust (mph)
Jan	77	( 2nd, 1997)	2	(19th, 1996)	3.08" (1998)	2.43" (30th, 2002)	2.52" (16th, 1995)	48	(17th, 1996)
Feb	93	(22nd, 1996)	-12	( 4th, 1996)	13.27" (1994)	6.69" (19th, 1994)	11.34" (19th, 1994)	50	(24th, 2001)
Mar	92	(22nd, 1995)	4	( 3rd, 2002)	12.63" (1994)	5.04" ( 8th, 1994)	7.09" (26th, 1994)	53	(24th, 1996)
Apr	91	( 8th, 1995)	24	(13th, 1997)	20.54" (1994)	6.61" (29th, 1994)	20.31" (10th, 1994)	54	( 6th, 2001)
May	99	(23rd, 2000)	37	( 3rd, 2004)	11.34" (1994)	5.00" (29th, 1994)	11.81" (29th, 1994)	57	(25th, 2004)
Jun	103	( 2nd, 1998)	49	( 6th, 1998)	9.86" (1995)	3.55" (25th, 2003)	4.92" (24th, 1999)	58	( 2nd, 2004)
Jul	112	( 6th, 1996)	56	( 5th, 1997)	16.77" (1994)	5.24" (26th, 1994)	20.31" (26th, 1994)	52	(22nd, 1995)
Aug	107	(26th, 1999)	52	(15th, 1994)	10.43" (1994)	6.14" (20th, 1994)	8.50" (20th, 1994)	59	(12th, 2001)
Sep	108	( 2nd, 2000)	36	(26th, 2000)	6.90" (1994)	2.99" ( 5th, 1994)	6.61" (21st, 1994)	53	( 7th, 2001)
Oct	94	( 3rd, 2000)	23	( 9th, 2000)	8.20" (1994)	3.31" ( 7th, 1994)	9.92" (18th, 1994)	48	(29th, 1996)
Nov	81	( 9th, 2002)	18	(16th, 1997)	22.17" (1994)	5.67" (19th, 1994)	12.76" (20th, 1994)	51	(20th, 1994)
Dec	77	( 1st, 1995)	4	(14th, 2000)	4.50" (1994)	2.13" ( 8th, 1994)	2.36" ( 8th, 1994)	46	( 2nd, 1999)
Annual	112	(Jul 6, 1996)	-12	(Feb 4, 1996)	22.17" (Nov 1994)	6.69" (Feb 19, 1994)	20.31" (Apr 10, 1994)	59	(Aug 12, 2001)

Mean Monthly Humidity and Moisture (1994-2004)
	Daily Max Relative Humidity	Daily Min Relative Humidity	Daily Average Relative Humidity	Daily Average Dewpoint	Daily Average Vapor Deficit
January	89	48	70	27	2.9
February	87	43	66	31	4.1
March	88	43	65	37	5.3
April	88	42	65	46	7.6
May	92	48	72	59	8.4
June	92	48	72	65	10.6
July	88	43	66	68	15.3
August	87	40	64	66	15.7
September	89	44	68	59	11.0
October	90	46	69	50	6.8
November	90	49	71	38	4.2
December	90	49	71	30	3.0
Annual	89	45	68	48	7.9

Soil Temperature at 10 cm (4-inch) Depth (1994-2004)
	Average Temperature Beneath Sod	Average Temperature Beneath Bare Soil	Average Daily Max Temperature	Average Daily Min Temperature
January	41	39	43	36
February	44	44	50	39
March	50	51	58	45
April	59	61	69	54
May	70	72	81	65
June	NA	NA	NA	NA
July	NA	NA	NA	NA
August	NA	NA	NA	NA
September	76	NA	NA	NA
October	65	NA	NA	NA
November	53	51	57	46
December	44	41	46	38
Annual	NA	NA	NA	NA

Wind Rose: Wedges show the percent of time for each direction from which the wind blows