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: January 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	47	30	38	+10	27	0				SW	5.2	15	WNW	70	72	9
2	45	26	36	+8	29	0				NW	4.5	11	NW	76	139	0
3	29	18	24	-4	41	0				E	2.6	8	ESE	96	47	7	F
4	30	25	28	-1	37	0	T	T		SE	2.5	9	SSE	95	32	10	F,GL
5	32	30	31	+2	34	0				S	2.4	7	NW	97	22	10	F
6	40	26	33	+4	32	0	T			SE	3.0	11	NNE	92	89	10	F
7	55	27	41	+12	24	0				W	7.4	28	NW	68	100	8	F
8	46	33	40	+11	25	0				SW	4.9	16	WSW	73	41	10
9	49	35	42	+13	23	0	T			NW	4.2	15	NW	72	54	10
10	42	31	36	+6	29	0	0.01			NW	3.8	10	N	91	47	10
11	59	29	44	+14	21	0				W	8.6	40	WSW	74	76	9	F,KFR 1500
12	53	29	41	+10	24	0	T			W	7.3	22	WSW	68	61	10
13	42	26	34	+3	31	0	T			NW	4.8	12	W	88	88	10
14	62	35	48	+16	17	0	0.01			SW	13.9	49	SSW	60	39	10	WFR 0230 KFR 1750
15	53	29	41	+8	24	0	0.07			SW	7.3	24	WSW	60	115	5	KFR 0230
16	50	36	43	+10	22	0	0.01			SW	13.9	41	WSW	64	113	8
17	37	27	32	-1	33	0	0.17			NW	7.2	19	WNW	92	31	10	KFR 2045
18	56	29	42	+9	23	0				S	12.5	38	SSE	64	151	6	F
19	49	35	42	+9	23	0	0.01			SE	5.6	33	SW	75	43	9
20	46	32	39	+6	26	0	0.10			NW	7.2	20	NW	92	121	8	F,KFR 2300
21	50	33	42	+9	23	0				NW	8.3	27	SW	81	79	10	F
22	44	34	39	+6	26	0	0.47	T		W	7.3	21	NW	84	26	10	F,KFR 1800
23	44	33	38	+6	27	0	0.04			NW	6.6	16	NW	80	71	10
24	37	22	30	-2	35	0				NW	4.1	10	E	72	118	9
25	34	22	28	-4	37	0				NW	9.0	18	NW	78	74	10
26	43	26	34	+2	31	0				W	5.6	14	WNW	70	134	8
27	45	20	32	0	33	0				S	9.1	42	S	71	101	9
28	56	42	49	+17	16	0				S	25.5	51	SSW	52	112	9
29	57	47	52	+20	13	0				S	18.5	55	S	34	136	9
30	54	37	46	+14	19	0				NW	5.7	22	SSE	45	89	10
31	54	28	41	+9	24	0				SW	9.6	35	W	60	134	8	KFR 1400
SUM					829	0	0.89	T
AVG	46.5	30.1	38.3								7.7					8.7

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.89	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			+0.10	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.51	ON	22-23	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	14	>= 0.25	1	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			38.3	>= 0.01	9	>= 0.50	0	AVERAGE STATION			29.238
DEPARTURE FROM NORMAL			+7.0	>= 0.10	3	>= 1.00	0	MAX SEA-LEVEL	30.60	ON	2
HIGHEST	62	ON	14	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.50	ON	16
LOWEST	18	ON	3	TOTAL FOR THE MONTH			T	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	T	ON	22+	AVERAGE DAILY TOTAL			82.4
MAXIMUM 32 OR BELOW			3	MAX ON GRND	na	ON	na	MAX DAILY	151	ON	18
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	22	ON	5
MINIMUM 32 OR BELOW			20	AVERAGE SPEED (MPH)			7.7	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			+1.2	CLEAR	1	FOG	10
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	S @ 55	ON	29	PARTLY CLOUDY	3	THDR	0
TOTAL FOR THE MONTH			829	AVERAGE PSYCHROMETRIC DATA				CLOUDY	27	DUST	0
DEPARTURE FROM NORMAL			-215	DRY BULB (ºF)	38.5	WET BULB (ºF)	35.0	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			2819	REL. HUM. (%)	74.0	DEW PT.(ºF)	29.9	HIGHEST	100	ON	21+
SEASON DEPARTURE FROM NORM			-478	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	25	ON	29