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 2006
	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	31	8	20	-16	45	0			1	S	3.8	8	NW	86	160	0	F
2	21	10	16	-19	49	0			1	W	3.5	11	W	91	41	10	F
3	21	8	14	-21	51	0			1	NW	3.0	8	SSE	94	44	10	F
4	24	19	22	-12	43	0			1	NW	3.5	8	NNW	95	48	10	F
5	30	19	24	-10	41	0			1	SW	3.4	8	NW	92	70	10	F
6	38	26	32	-1	33	0			1	W	4.8	10	W	85	123	3
7	32	18	25	-8	40	0			1	SE	2.8	9	ESE	93	48	10	F
8	36	26	31	-2	34	0			1	SE	3.1	10	ESE	94	41	10	F
9	33	27	30	-3	35	0	0.02		1	SE	2.7	8	WNW	99	36	10	F, GL
10	41	27	34	+1	31	0	0.08			NW	6.0	20	WNW	96	59	10	F,KFR 0900
11	50	28	39	+6	26	0	0.16			NW	8.2	25	S	87	28	10	F,KFR 1400
12	51	35	43	+10	22	0	0.05			SW	7.9	31	SW	65	78	7
13	56	36	46	+23	19	0	0.09			SW	16.1	55	WSW	63	114	6	F,KFR 0600
14	51	35	43	+10	22	0	0.61			NW	9.0	67	SW	82	13	10	F,DL, WFR 1400 KFR 2100
15	50	24	37	+5	28	0				SW	21.7	74	SW	57	140	2
16	35	18	26	-6	39	0				NW	6.3	15	WNW	79	95	9
17	36	17	26	-5	39	0				W	4.6	14	WNW	80	160	0	F
18	28	15	22	-9	43	0				SW	3.2	8	WNW	95	20	10	F
19	28	20	24	-7	41	0	T	T		SW	3.0	7	WSW	89	23	10	F
20	31	19	25	-5	40	0				NW	3.8	10	NNW	88	73	10	F
21	38	20	29	-1	36	0	0.03	0.1	T	NW	4.1	10	WNW	87	124	2	F,KFR 0230
22	31	20	26	-4	39	0	0.01	0.1	T	W	3.6	14	WNW	95	34	10	F, GL
23	34	17	26	-4	39	0	0.18	1.8	T	NW	5.0	17	NW	95	56	9	F,KFR 0900
24	32	14	23	-7	42	0			2	NW	7.2	23	NW	93	65	10	F
25	36	29	32	+2	33	0	0.08		2	NW	4.4	14	NW	98	62	10	F, GL
26	34	32	33	+3	32	0	0.39	T	1	NW	8.3	16	WNW	99	23	10	F
27	42	31	36	+6	29	0	0.05		1	NW	11.5	33	WNW	74	64	10	F,KFR 0530
28	38	25	32	+3	33	0			T	NW	8.2	24	NW	60	140	1
29	33	21	27	-2	38	0			T	NW	5.9	14	W	76	95	9
30	32	22	27	-2	38	0			T	W	4.3	11	NW	84	37	10
31	31	26	28	0	37	0			T	S	2.8	8	NW	82	37	10
SUM					1117	0	1.75	2.0
AVG	35.6	22.3	29.0								6.0					8.0

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			1.75	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			+0.64	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.61	ON	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	13	>= 0.25	2	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			29.0	>= 0.01	12	>= 0.50	1	AVERAGE STATION			29.412
DEPARTURE FROM NORMAL			-2.7	>= 0.10	4	>= 1.00	0	MAX SEA-LEVEL	30.83	ON	2
HIGHEST	56	ON	13	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.31	ON	14
LOWEST	8	ON	3+	TOTAL FOR THE MONTH			2.0	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	1.8	ON	23	AVERAGE DAILY TOTAL			69.4
MAXIMUM 32 OR BELOW			13	MAX ON GRND	1.8	ON	23	MAX DAILY	160	ON	1
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	13	ON	14
MINIMUM 32 OR BELOW			28	AVERAGE SPEED (MPH)			6.0	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			-0.1	CLEAR	6	FOG	23
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	SW @ 74	ON	15	PARTLY CLOUDY	2	THDR	0
TOTAL FOR THE MONTH			1117	AVERAGE PSYCHROMETRIC DATA				CLOUDY	23	DUST	0
DEPARTURE FROM NORMAL			+85	DRY BULB (ºF)	29.5	WET BULB (ºF)	28.1	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			2336	REL. HUM. (%)	85.6	DEW PT.(ºF)	25.3	HIGHEST	100	ON	27+
SEASON DEPARTURE FROM NORM			+97	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	30	ON	3