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: April 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	61	46	54	+4	11	0				N	11.3	38	WNW	37	355	8	KFR 0300
2	56	32	44	-6	21	0				N	5.9	14	N	35	367	7
3	64	30	47	-3	18	0				NW	5.4	13	E	42	474	0
4	71	29	50	-1	15	0				NE	4.4	11	ENE	42	471	2
5	69	48	58	+7	7	0	T			NW	7.7	23	WNW	46	238	10
6	69	39	54	+3	11	0				W	9.3	24	SW	51	400	8
7	67	43	55	+4	10	0				NW	12.8	29	NW	43	460	2
8	67	34	50	-1	15	0				SE	5.6	19	W	36	496	2
9	64	45	54	+3	11	0	0.03			SW	7.5	36	SW	57	197	10	KFR 1815
10	70	48	59	+7	6	0				SW	11.4	35	W	50	407	6
11	70	47	58	+6	7	0	0.04			SW	8.6	28	SW	59	330	9
12	72	48	60	+8	5	0				SW	11.8	30	W	48	403	8
13	75	56	66	+13	0	1	0.08			SW	20.9	47	SSW	55	339	3
14	61	40	50	-3	15	0				SW	16.0	50	WSW	43	536	2	KFR 0300
15	58	32	45	-9	20	0	T			SW	7.1	26	N	52	317	6
16	54	32	43	-11	22	0	T			S	8.0	33	S	54	269	10
17	58	32	45	-9	20	0	0.04			NW	7.3	26	WNW	68	369	7
18	67	35	51	-3	14	0	0.01			NW	10.0	34	WNW	50	458	5	AU
19	70	47	58	+4	7	0				NW	9.6	24	N	34	547	3	AU
20	71	35	53	-2	12	0				W	6.1	21	WNW	44	519	1
21	71	38	54	-1	11	0				NW	11.0	38	NW	45	529	1
22	71	41	56	+1	9	0				W	12.5	40	W	41	463	4	KFR 1645
23	61	35	48	-7	17	0				NW	13.4	34	WNW	33	590	1
24	63	31	47	-8	18	0				E	5.2	17	ENE	28	557	3
25	68	37	52	-4	13	0				NW	6.1	28	NW	30	431	6
26	68	46	57	+1	8	0	0.08			NW	9.0	29	WNW	46	465	9
27	56	41	48	-8	17	0	0.01			NW	6.4	18	NW	81	213	10
28	72	36	54	-3	11	0				SW	6.0	24	WNW	53	582	0
29	75	40	58	+1	7	0				N	5.7	16	WSW	39	544	2
30	80	48	64	+6	1	0				NE	6.6	26	NE	40	503	4
SUM					359	1	0.29	0
AVG	66.6	39.7	53.2								9.0					5.0

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.29	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.15	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.09	ON	26-27	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			53.2	>= 0.01	7	>= 0.50	0	AVERAGE STATION			29.190
DEPARTURE FROM NORMAL			-0.3	>= 0.10	0	>= 1.00	0	MAX SEA-LEVEL	30.48	ON	24
HIGHEST	80	ON	30	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.51	ON	14
LOWEST	29	ON	4	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			427.6
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	590	ON	23
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	197	ON	9
MINIMUM 32 OR BELOW			7	AVERAGE SPEED (MPH)			9.0	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			+0.2	CLEAR	13	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	WSW @ 50	ON	14	PARTLY CLOUDY	8	THDR	0
TOTAL FOR THE MONTH			359	AVERAGE PSYCHROMETRIC DATA				CLOUDY	9	DUST	0
DEPARTURE FROM NORMAL			+9	DRY BULB (ºF)	53.5	WET BULB (ºF)	43.7	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			4654	REL. HUM. (%)	46.0	DEW PT.(ºF)	31.5	HIGHEST	98	ON	27
SEASON DEPARTURE FROM NORM			-317	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	14	ON	23