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 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	57	38	48	-2	17	0				NW	8.5	28	NW	45	407	7
2	52	36	44	-6	21	0	0.04			SW	8.1	23	SW	58	148	10
3	53	33	43	-7	22	0	T			W	6.2	24	NE	61	320	10
4	55	34	44	-7	21	0				NW	6.0	17	WNW	60	355	5
5	59	28	44	-7	21	0	0.01			SW	8.8	32	S	56	304	9
6	58	41	50	-1	15	0				W	9.7	28	WSW	48	Msg	10
7	55	40	48	-3	17	0				W	9.0	20	WSW	38	Msg	10
8	58	33	46	-5	19	0				SW	9.0	22	WNW	41	Msg	4
9	63	28	46	-5	19	0				W	9.3	30	NW	44	481	3
10	57	39	48	-4	17	0	0.26			W	7.3	22	WSW	63	170	10	KFR 2330
11	53	35	44	-8	21	0	0.25			N	10.8	30	N	76	201	9	AU
12	56	30	43	-9	22	0				SW	9.1	30	SSW	61	364	8
13	55	35	45	-8	20	0				W	9.9	23	NW	43	352	10
14	57	28	42	-11	23	0				W	4.7	13	SSE	49	425	4
15	67	41	54	0	11	0				NW	6.8	19	NE	41	445	7
16	72	46	59	+5	6	0				NW	7.9	30	WSW	38	412	8	KFR 2215
17	69	50	60	+6	5	0				SW	14.2	48	WSW	38	391	9	BD
18	61	41	51	-3	14	0	0.04			SE	7.4	22	S	72	213	9	T
19	64	39	52	-2	13	0				W	6.2	26	SSE	50	349	5
20	67	43	55	0	10	0				NW	9.8	25	NNE	47	304	9
21	68	41	54	-1	11	0				NW	8.1	35	SW	46	391	0
22	65	41	53	-2	12	0				W	8.2	28	WSW	44	332	7
23	67	41	54	-1	11	0	T			W	6.0	20	WSW	55	231	10
24	77	37	57	+2	8	0				SE	5.4	15	SE	55	439	3
25	83	49	66	+10	0	1				W	4.8	15	NE	48	439	7
26	83	56	70	+14	0	5	T			W	6.3	21	SSE	43	241	8	DL
27	81	52	66	+10	0	1	0.09			W	7.7	31	WSW	48	356	8	T,WFR 2315
28	66	43	54	-3	11	0	0.12			SW	14.8	50	WSW	54	425	7	BD,KFR 0500
29	64	39	52	-5	13	0				SW	16.1	41	SW	49	214	10
30	64	44	54	-4	11	0	0.02			SW	11.6	48	SW	55	216	7	BD,KFR 1200
SUM					411	7	0.83	0
AVG	63.5	39.4	51.4								8.6					7.4

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.83	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	0.51	ON	10-11	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	11	>= 0.25	2	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			51.4	>= 0.01	8	>= 0.50	0	AVERAGE STATION			29.163
DEPARTURE FROM NORMAL			-2.1	>= 0.10	3	>= 1.00	0	MAX SEA-LEVEL	30.30	ON	24
HIGHEST	83	ON	26+	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.61	ON	6
LOWEST	28	ON	14+	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			330.5
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	481	ON	9
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	148	ON	2
MINIMUM 32 OR BELOW			4	AVERAGE SPEED (MPH)			8.6	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			-0.2	CLEAR	3	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	WSW @ 50	ON	28	PARTLY CLOUDY	10	THDR	2
TOTAL FOR THE MONTH			411	AVERAGE PSYCHROMETRIC DATA				CLOUDY	17	DUST	3
DEPARTURE FROM NORMAL			+61	DRY BULB (ºF)	51.7	WET BULB (ºF)	43.1	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			5322	REL. HUM. (%)	50.8	DEW PT.(ºF)	32.7	HIGHEST	98	ON	10
SEASON DEPARTURE FROM NORM			+337	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	20	ON	9