CLIMATOLOGICAL DATA							HANFORD METEOROLOGY STATION 25 MILES N.W. OF RICHLAND, WA LATITUDE 46º 34'N, LONGITUDE 119º 36'W ELEVATION (GROUND) 733 FEET							MONTH: May 2009
	TEMPERATURE (ºF) (3-FT LEVEL)						PRECIPITATION			WIND (50-FT LEVEL)							FRONTS & MISC PHENOM
D A T E	M A X I M U M	M I N I M U M	A V E R A G E	D E P A R T U R E	H D D 65 ºF	C D D 65 ºF	T O T A L IN.	S N O W IN.	SNOW ON GRND AT 0400 IN.	P R E V A I L DIR	A V E SPD MPH	PK G U S T SPD MPH	PK G U S T DIR	A V E RH %	S O L A R A D	S K Y C V R SR TO SS	NOTE:TYPES AND TIMES OF FRONTAL PASSAGES "KFR"(COLD) "WFR"(WARM)
1	70	36	53	-5	12	0				NW	7.7	39	E	46.2	528.0	5
2	65	48	56	-2	9	0	0.06			W	8.3	30	WSW	55.8	259.2	10
3	67	44	56	-3	9	0				W	7.7	27	W	50.6	450.0	9
4	66	36	51	-8	14	0	0.08			SE	7.2	30	S	68.2	310.2	9	WFR 2245
5	68	48	58	-1	7	0				SW	20.6	57	SW	44.3	586.2	0	KFR 0200
6	66	44	55	-4	10	0	0.02			SW	11.1	39	WSW	62.0	274.8	8	WFR 0530 KFR 1520
7	66	43	54	-6	11	0				W	14.5	33	WNW	44.8	507.6	3
8	68	36	52	-8	13	0				E	6.7	20	E	44.6	625.2	0
9	72	40	56	-4	9	0				NW	6.8	19	NW	41.5	596.4	1
10	76	44	60	-1	5	0	T			SE	6.4	39	SW	40.7	571.2	3	KFR 2100
11	73	47	60	-1	5	0				SW	15.3	34	SW	39.8	613.8	2
12	63	42	52	-9	13	0	T			W	15.5	39	WNW	41.5	485.4	6	KFR 1200
13	62	36	49	-12	16	0	0.02			S	8.2	32	SW	51.8	349.2	10	WFR 2145
14	72	49	60	-2	5	0				SW	15.3	36	NW	45.4	577.2	2	KFR 0500
15	72	37	54	-8	11	0				E	5.5	21	NNE	40.1	630.6	2
16	83	41	62	0	3	0				SE	4.8	20	E	38.0	607.2	8
17	91	46	68	+6	0	3				NW	5.6	21	E	37.2	607.2	9
18	92	56	74	+12	0	9				W	8.9	31	W	35.7	641.4	3
19	73	43	58	-4	7	0	T			W	12.3	42	SW	41.5	634.2	3	KFR 0100
20	70	40	55	-7	10	0				W	7.1	26	WSW	38.0	634.2	2
21	76	43	60	-3	5	0				NW	7.8	19	NW	33.9	643.2	3
22	82	49	66	+3	0	1				NW	7.2	20	NW	28.1	659.4	1
23	87	56	72	+8	0	7				NW	8.4	34	WNW	28.9	622.2	1
24	89	56	72	+8	0	7				NW	9.9	33	NW	22.8	663.6	0
25	87	48	68	+4	0	3				NW	7.6	30	WNW	29.2	654.6	0
26	84	49	66	+2	0	1				NW	8.6	27	WNW	36.4	588.6	10
27	84	51	68	+3	0	3				W	6.8	22	NW	40.2	594.6	6
28	90	54	72	+7	0	7				NW	6.5	15	E	30.0	658.2	0
29	97	58	78	+13	0	13				NW	6.9	26	W	30.3	625.8	3	DL
30	99	66	82	+17	0	17				NW	9.6	32	WNW	22.3	666.6	0
31	95	63	79	+13	0	14				W	7.2	24	W	20.5	605.4	8
SUM					174	85	0.18
AVG	77.6	46.7	62.2								9.1					4.1

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.18	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.37	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.08	ON	4	F-Fog, IC-Ice Crystals, K-Smoke
Solrad in column 15 is in Langleys; g-cal/sq. cm				NUMBER OF DAYS WITH:				GL-Glaze, T-Thunderstorm, DS-Drifting Snow
TEMPERATURE (ºF) (3-FT LEVEL)				>= T	7	>= 0.25	0	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			62.2	>= 0.01	4	>= 0.50	0	AVERAGE STATION			29.174
DEPARTURE FROM NORMAL			+0.4	>= 0.10	0	>= 1.00	0	MAX SEA-LEVEL	30.321	ON	8
HIGHEST	99	ON	30	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.497	ON	4
LOWEST	36	ON	13+	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			563.6
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	666.6	ON	30
MAXIMUM 90 OR ABOVE			6	WIND (50-FT LEVEL)				MIN DAILY	259.2	ON	2
MINIMUM 32 OR BELOW			0	AVERAGE SPEED (MPH)			9.1	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			+0.2	CLEAR	19	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	SW @ 57	ON	5	PARTLY CLOUDY	3	THDR	0
TOTAL FOR THE MONTH			174	AVERAGE PSYCHROMETRIC DATA				CLOUDY	9	DUST	0
DEPARTURE FROM NORMAL			+18	DRY BULB (ºF)	63.1	WET BULB (ºF)	49.3	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			5560	REL. HUM. (%)	39.7	DEW PT.(ºF)	35.4	HIGHEST	98	ON	4
SEASON DEPARTURE FROM NORM			+433	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	9	ON	24