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: December 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	30	27	28	-8	37	0				W	3.1	8	WNW	96	18	10	F
2	32	29	30	-5	35	0	0.01			NW	3.8	9	N	94	17	10	F, GL
3	34	31	32	-3	33	0	0.01	0.1		SE	2.0	4	ENE	96	18	10	F
4	34	32	33	-1	32	0	0.05	0.2		E	1.8	5	E	96	19	10	F
5	37	33	35	+1	30	0	T	T		SW	2.3	5	S	95	20	10	F
6	40	36	38	+5	27	0	0.02			W	2.9	6	SE	98	13	10	F
7	38	36	37	+4	28	0	0.01			NE	2.3	6	ENE	100	7	10	F
8	40	36	38	+5	27	0				NW	3.3	7	NNW	96	15	10	F
9	40	36	38	+5	27	0	T			SW	2.7	8	W	90	20	10
10	46	32	39	+6	26	0	0.03			SW	7.0	38	SW	86	40	7	F, KFR0300 KFR1700
11	46	33	40	+7	25	0	0.25			NW	6.2	23	SSW	86	6	10	F, WFR 1800
12	42	37	40	+7	25	0	T			NW	5.0	15	NW	97	31	10	F, KFR 0100
13	52	38	45	+12	20	0	0.14			E	4.2	15	NNE	90	82	7	F, KFR 1930
14	50	42	46	+13	19	0	0.50			NW	6.6	19	NW	96	14	10	KFR 1700
15	55	45	50	+18	15	0	0.02			S	12.6	46	SW	63	51	5
16	56	38	47	+15	18	0	0.03			W	13.0	43	SSW	64	77	9	KFR 1800
17	38	26	32	+1	33	0	0.01			W	4.2	12	SSW	87	34	10
18	38	24	31	0	34	0				NW	3.7	11	ENE	98	53	9	F
19	37	28	32	+1	33	0				NW	7.6	15	NW	89	38	10	F
20	42	35	38	+8	27	0				NW	9.8	19	NW	78	48	8
21	41	27	34	+4	31	0	0.02			NW	5.7	12	WNW	83	19	10	KFR 1330
22	39	23	31	+1	34	0				NW	3.6	12	WNW	96	62	10	F
23	42	32	37	+7	28	0				NW	5.5	14	WNW	84	51	10
24	34	28	31	+1	34	0	0.03	0.3		SE	2.9	9	S	98	19	10	F
25	32	29	30	0	35	0	0.01			E	2.1	8	E	100	23	10	F, GL
26	47	32	40	+10	25	0	0.17			NW	6.3	20	SW	76	70	9	F
27	52	33	42	+12	23	0	0.30			NW	12.6	63	SW	78	65	10	F,WFR0840 KFR1400
28	40	36	38	+9	27	0	0.25			NW	9.1	22	WNW	90	21	10
29	46	32	39	+10	26	0	0.08			W	7.5	32	W	77	121	1
30	39	33	36	+7	29	0	0.41			NW	7.9	20	NW	95	36	10
31	51	35	43	+15	22	0	0.01			NW	8.1	20	NW	77	113	4	KFR 0600
SUM					865	0	2.36	0.6
AVG	41.6	32.7	37.2								5.7					9.0

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			2.36	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			+1.25	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.63	ON	13-14	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	24	>= 0.25	5	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			37.2	>= 0.01	21	>= 0.50	1	AVERAGE STATION			29.169
DEPARTURE FROM NORMAL			+5.5	>= 0.10	7	>= 1.00	0	MAX SEA-LEVEL	30.52	ON	5
HIGHEST	56	ON	16	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	28.91	ON	16
LOWEST	23	ON	22	TOTAL FOR THE MONTH			0.6	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	0.3	ON	24	AVERAGE DAILY TOTAL			39.4
MAXIMUM 32 OR BELOW			3	MAX ON GRND	0.2	ON	24	MAX DAILY	121	ON	29
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	6	ON	11
MINIMUM 32 OR BELOW			15	AVERAGE SPEED (MPH)			5.7	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			-0.3	CLEAR	1	FOG	19
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	SW @ 63	ON	27	PARTLY CLOUDY	4	THDR	0
TOTAL FOR THE MONTH			865	AVERAGE PSYCHROMETRIC DATA				CLOUDY	26	DUST	0
DEPARTURE FROM NORMAL			-167	DRY BULB (ºF)	37.1	WET BULB (ºF)	35.7	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			2089	REL. HUM. (%)	88.7	DEW PT.(ºF)	33.7	HIGHEST	100	ON	27+
SEASON DEPARTURE FROM NORM			-150	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	44	ON	15