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 1999
	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	34	48	-2	17	0				NW	10.4	26	NNE	38	473	2
2	64	30	47	-3	18	0	T			S	9.7	40	NW	44	445	6	KFR 1740
3	54	35	44	-6	21	0				W	10.0	31	WNW	49	214	10
4	52	39	46	-5	19	0				SW	9.7	22	SSW	42	208	10
5	52	32	42	-9	23	0				SW	6.0	15	NW	62	263	9
6	61	27	44	-7	21	0				SW	6.4	21	W	48	488	3
7	67	28	48	-4	17	0	T			SW	8.9	39	W	54	437	4
8	56	38	47	-5	18	0				NW	12.2	30	WNW	43	242	10	KFR 0800
9	54	30	42	-10	23	0	T			W	10.0	31	SSW	41	294	5
10	59	25	42	-10	23	0				E	5.3	18	NE	48	457	9
11	66	35	50	-2	15	0				NW	7.1	17	NW	40	535	0
12	69	36	52	0	13	0				NW	8.1	32	WNW	51	238	9	KFR 1500
13	63	37	50	-2	15	0				NW	13.5	30	NW	37	547	1
14	63	33	48	-4	17	0				NE	6.8	20	NE	32	554	0
15	70	33	52	0	13	0				NE	7.4	20	NE	29	562	0
16	75	39	57	+5	8	0				NW	6.6	17	E	29	545	3
17	80	42	61	+9	4	0				SE	5.8	16	S	37	482	9
18	71	48	60	+8	5	0				NW	8.1	26	WNW	57	206	10
19	65	39	52	0	13	0	T			W	7.2	26	SSW	64	322	9
20	62	39	50	-3	15	0				W	13.3	37	NW	45	420	4
21	62	37	50	-3	15	0				NW	8.8	29	WNW	39	509	3
22	69	45	57	+3	8	0				NW	12.0	29	ENE	43	474	7
23	77	44	60	+6	5	0				NE	8.9	32	SSW	39	590	2
24	82	43	62	+8	3	0				W	5.8	13	NNE	37	583	0
25	71	42	56	+1	9	0				NW	10.8	32	NW	46	296	8
26	63	34	48	-7	17	0				W	9.9	30	SSW	40	554	1
27	59	30	44	-11	21	0				W	7.4	26	WNW	48	431	4
28	66	36	51	-5	14	0				N	10.2	27	ENE	44	440	9
29	73	42	58	+2	7	0				N	9.9	28	NNE	41	593	4
30	75	41	58	+1	7	0				W	7.1	25	W	44	589	7
SUM					424	0	T	0
AVG	65.4	36.4	50.9								8.8					5.3

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			T	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.41	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	T	ON	19+	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	4	>= 0.25	0	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			50.9	>= 0.01	0	>= 0.50	0	AVERAGE STATION			29.246
DEPARTURE FROM NORMAL			-1.8	>= 0.10	0	>= 1.00	0	MAX SEA-LEVEL	30.73	ON	14
HIGHEST	82	ON	24	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.60	ON	7
LOWEST	25	ON	10	TOTAL FOR THE MONTH			0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	na	ON	na	AVERAGE DAILY TOTAL			433.1
MAXIMUM 32 OR BELOW			0	MAX ON GRND	na	ON	na	MAX DAILY	593	ON	29
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	206	ON	18
MINIMUM 32 OR BELOW			7	AVERAGE SPEED (MPH)			8.8	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			-0.2	CLEAR	11	FOG	0
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	NW @ 40	ON	2	PARTLY CLOUDY	8	THDR	0
TOTAL FOR THE MONTH			424	AVERAGE PSYCHROMETRIC DATA				CLOUDY	11	DUST	0
DEPARTURE FROM NORMAL			+52	DRY BULB (ºF)	51.9	WET BULB (ºF)	41.9	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			4475	REL. HUM. (%)	43.7	DEW PT.(ºF)	28.8	HIGHEST	95	ON	3
SEASON DEPARTURE FROM NORM			-560	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	14	ON	15+