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 2004
	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	62	32	47	-3	18	0				N	7.1	21	NNE	40	398	3
2	70	38	54	+4	11	0				NE	11.1	30	NE	38	460	0
3	67	46	56	+6	9	0				NW	5.9	13	NW	47	277	10
4	73	40	56	+5	9	0				W	5.2	17	SSE	49	459	1
5	63	38	50	-1	15	0				W	4.3	18	WNW	56	169	10
6	72	38	55	+4	10	9				NW	4.3	16	NNW	52	464	0
7	74	43	58	+7	7	0				NW	9.3	33	NW	46	377	5
8	71	40	56	+5	9	0				NW	6.4	22	WNW	40	494	0
9	71	40	56	+5	9	0				NW	6.0	20	NNE	47	482	0
10	74	37	56	+4	9	0				NW	4.9	14	NNE	44	482	3
11	77	39	58	+6	7	0				W	4.5	14	E	41	494	3
12	78	39	58	+6	7	0				NW	5.1	26	WNW	44	448	6
13	69	46	58	+5	7	0	0.04			W	8.2	25	W	57	377	8	T
14	64	44	54	+1	11	0				SW	11.9	36	SW	48	400	8
15	62	39	50	-4	15	0	T			W	7.6	32	W	55	360	9
16	63	36	50	-4	15	0				SW	6.0	22	SW	54	392	8
17	64	41	52	-2	13	0				NW	6.7	26	WNW	53	460	4
18	63	37	50	-4	15	0				SW	8.4	25	S	52	415	4
19	67	33	50	-4	15	0	T			S	6.7	23	S	49	440	6
20	61	44	52	-3	13	0	0.15			SW	13.8	48	W	58	421	8	KFR 0030
21	62	34	48	-7	17	0	T			N	7.2	24	ENE	63	365	7
22	74	40	57	+2	8	0				SW	5.0	16	W	47	546	0
23	66	36	51	-4	14	0	T			NW	9.6	35	WSW	58	267	8	KFR 1230
24	66	41	54	-1	11	0				SE	5.8	19	SSE	41	533	1
25	76	37	56	0	9	0				NE	4.5	12	N	46	556	0
26	83	46	64	+8	1	0				W	6.0	14	W	40	556	0
27	82	45	64	+8	1	0				W	15.4	55	W	43	380	5	KFR 1545
28	72	46	59	+2	6	0	0.02			N	12.9	35	N	34	471	4
29	74	36	55	-2	10	0				N	3.5	15	NE	42	575	0
30	81	42	62	+4	3	0				W	3.9	14	N	36	578	0
SUM					304	0	0.21	0
AVG	70.0	39.8	54.9								7.2					4.0

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.21	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.23	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.15	ON	20	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			54.9	>= 0.01	3	>= 0.50	0	AVERAGE STATION			29.227
DEPARTURE FROM NORMAL			+1.4	>= 0.10	1	>= 1.00	0	MAX SEA-LEVEL	30.39	ON	2
HIGHEST	83	ON	26	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.67	ON	27
LOWEST	32	ON	1	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			436.6
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	578	ON	30
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	169	ON	5
MINIMUM 32 OR BELOW			1	AVERAGE SPEED (MPH)			7.2	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			-1.6	CLEAR	14	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	W @ 55	ON	27	PARTLY CLOUDY	8	THDR	1
TOTAL FOR THE MONTH			304	AVERAGE PSYCHROMETRIC DATA				CLOUDY	8	DUST	0
DEPARTURE FROM NORMAL			-46	DRY BULB (ºF)	55.6	WET BULB (ºF)	45.4	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			4830	REL. HUM. (%)	47.3	DEW PT.(ºF)	34.2	HIGHEST	93	ON	21
SEASON DEPARTURE FROM NORM			-141	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	13	ON	28