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 2001
	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	64	38	51	-7	14	0				W	13.2	35	WNW	42	513	4
2	68	43	56	-2	9	0				NW	9.2	25	WNW	36	559	1
3	73	34	54	-5	11	0				SE	5.3	18	SSE	39	542	6
4	80	48	64	+5	1	0				SW	12.5	46	WSW	35	435	8	KFR 1915
5	65	43	54	-5	11	0				NW	15.5	35	WNW	36	595	1
6	67	36	52	-7	13	0				W	5.2	15	WNW	35	593	1
7	81	39	60	0	5	0				SE	5.4	18	ESE	38	563	9
8	82	56	69	+9	0	4				NW	11.6	30	WNW	32	491	8
9	75	50	62	+2	3	0				NW	12.3	31	WNW	29	545	5
10	76	49	62	+1	3	0				SE	7.0	26	WNW	32	588	2
11	86	46	66	+5	0	1				E	4.8	15	E	33	568	6
12	90	61	76	+15	0	11				W	9.1	28	W	31	443	9	KFR 1730
13	78	54	66	+5	0	1				SW	8.6	23	WSW	36	446	10
14	64	53	58	-4	7	0	0.01			SW	15.4	33	SSW	55	73	10
15	70	43	56	-6	9	0	T			S	9.5	29	WSW	53	366	9	DL,KFR 2100
16	70	47	58	-4	7	0				SW	13.7	39	WSW	36	544	4
17	64	41	52	-10	13	0				W	7.2	29	WNW	45	250	9
18	74	47	60	-2	5	0				W	7.0	26	W	38	608	3
19	74	44	59	-3	6	0				NW	14.0	45	WNW	43	521	9	KFR 1200
20	73	47	60	-2	5	0				W	7.6	28	WSW	27	632	0
21	84	45	64	+1	1	0				SE	5.0	16	E	29	626	0
22	96	49	72	+9	0	7				E	4.2	15	ENE	30	629	0
23	101	59	80	+16	0	15				W	6.7	49	W	28	603	2	DL, BD
24	97	66	82	+18	0	17				NW	10.0	33	NW	29	600	3
25	94	64	79	+15	0	14				NW	7.7	27	WNW	22	627	2
26	95	59	77	+13	0	12				SE	7.3	19	SSE	22	618	2
27	88	58	73	+8	0	8	0.17			W	7.9	33	WNW	34	303	9	KFR 1600
28	74	46	60	-5	5	0				SW	17.8	51	SW	39	581	6
29	73	37	55	-10	10	0				SW	8.0	24	W	31	632	2
30	84	47	66	+1	0	1				NW	8.9	29	NW	36	545	6
31	91	52	72	+6	0	7				E	5.4	16	E	36	638	2
SUM					138	98	0.18	0
AVG	79.1	48.4	63.7								9.1					4.8

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	0.17	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	3	>= 0.25	0	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			63.7	>= 0.01	2	>= 0.50	0	AVERAGE STATION			29.231
DEPARTURE FROM NORMAL			+1.9	>= 0.10	1	>= 1.00	0	MAX SEA-LEVEL	30.41	ON	3+
HIGHEST	101	ON	23	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.54	ON	27
LOWEST	34	ON	3	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			525.1
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	638	ON	31
MAXIMUM 90 OR ABOVE			7	WIND (50-FT LEVEL)				MIN DAILY	73	ON	14
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	14	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	SW @ 51	ON	28	PARTLY CLOUDY	7	THDR	0
TOTAL FOR THE MONTH			138	AVERAGE PSYCHROMETRIC DATA				CLOUDY	10	DUST	1
DEPARTURE FROM NORMAL			-18	DRY BULB (ºF)	64.5	WET BULB (ºF)	49.6	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			5460	REL. HUM. (%)	35.1	DEW PT.(ºF)	34.4	HIGHEST	74	ON	15
SEASON DEPARTURE FROM NORM			+319	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	9	ON	24