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 2002
	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	79	45	62	+4	3	0				NW	6.1	22	W	35	579	0
2	76	47	62	+4	3	0				NW	12.3	35	NW	41	566	6	KFR 1630
3	67	41	54	-5	11	0				NW	11.0	37	WNW	34	597	0
4	61	44	52	-7	13	0				NW	8.2	29	NW	42	250	10
5	67	40	54	-5	11	0	T			W	15.8	52	W	44	485	6	KFR 1430
6	58	34	46	-13	19	0	T			W	10.1	40	W	43	456	6
7	61	36	48	-12	17	0				NW	8.5	33	NNW	45	302	8
8	63	32	48	-12	17	0				E	4.9	16	E	42	507	5
9	66	42	54	-6	11	0	T			NW	7.5	31	WNW	43	405	9
10	70	42	56	-5	9	0				NW	8.5	35	WNW	38	567	2
11	74	42	58	-3	7	0				NW	5.1	18	E	34	623	0
12	82	43	62	+1	3	0				NE	5.5	21	E	34	577	9
13	81	44	62	+1	3	0	T			NW	11.1	48	W	43	308	9	KFR 1500
14	70	35	52	-10	13	0				NW	11.3	40	NW	41	569	6
15	71	46	58	-4	7	0				NW	7.8	27	NW	31	616	3
16	76	40	58	-4	7	0				SE	6.2	25	ESE	30	601	4
17	76	53	64	+2	1	0	T			E	9.0	35	W	41	572	6
18	71	52	62	0	3	0				NW	8.3	29	NW	53	286	10
19	79	55	67	+5	0	2	T			NW	10.3	45	WSW	54	412	10	DL,KFR 1900
20	72	50	61	-1	4	0	T			SE	5.7	26	WSW	61	340	9
21	71	51	61	-2	4	0				NW	17.9	46	NW	42	598	5
22	69	47	58	-5	7	0				NW	14.3	35	WNW	41	446	8
23	71	50	60	-4	5	0				SE	5.5	21	ESE	49	545	5
24	78	46	62	-2	3	0				SE	5.8	26	ESE	39	638	5
25	82	52	67	+3	0	2				NW	6.7	30	SW	42	340	9
26	80	57	68	+4	0	3	T			NW	7.3	24	WNW	47	358	9
27	86	54	70	+5	0	5	0.16			W	6.6	30	S	55	450	9	KFR 1845
28	78	57	68	+3	0	3	T			SW	11.1	35	WSW	57	411	7
29	79	62	70	+5	0	5				SW	15.4	41	W	47	238	9	KFR 1800
30	83	57	70	+5	0	5				NW	9.5	34	NW	37	657	2
31	82	53	68	+2	0	3				NW	8.6	26	NW	32	630	4
SUM					181	28	0.16	0
AVG	73.5	46.7	60.1								9.1					6.1

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.16	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.39	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.16	ON	27	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	10	>= 0.25	0	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			60.1	>= 0.01	1	>= 0.50	0	AVERAGE STATION			29.174
DEPARTURE FROM NORMAL			-1.7	>= 0.10	1	>= 1.00	0	MAX SEA-LEVEL	30.30	ON	8
HIGHEST	86	ON	27	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.52	ON	19
LOWEST	32	ON	8	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			481.6
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	657.0	ON	30
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	237.6	ON	29
MINIMUM 32 OR BELOW			1	AVERAGE SPEED (MPH)			9.1	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			+0.2	CLEAR	6	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	W @ 52	ON	5	PARTLY CLOUDY	12	THDR	0
TOTAL FOR THE MONTH			181	AVERAGE PSYCHROMETRIC DATA				CLOUDY	13	DUST	0
DEPARTURE FROM NORMAL			+25	DRY BULB (ºF)	60.0	WET BULB (ºF)	48.2	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			4835	REL. HUM. (%)	42.5	DEW PT.(ºF)	36.3	HIGHEST	91	ON	20
SEASON DEPARTURE FROM NORM			-292	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	17	ON	15