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 2007
	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	28	22	25	-11	40	0	0.01	0.2		NW	4.5	25	SW	88.8	83	10	F, WFR 2357
2	48	26	37	+2	28	0	0.02			S	16.9	43	SSW	72.9	49	10
3	63	44	54	+19	11	0	0.05			S	16.2	44	S	65.0	43	10	KFR 1715
4	63	39	51	+17	14	0				SW	15.9	40	SW	59.8	140	1
5	52	32	42	+8	23	0				W	5.6	14	W	70.8	107	7
6	39	30	34	+1	31	0	0.03			NW	8.6	20	NW	85.9	32	10
7	41	32	36	+3	29	0				NW	8.4	17	NW	62.7	77	7
8	40	18	29	-4	36	0				NW	8.7	24	NNW	54.8	139	0
9	27	13	20	-13	45	0	0.03	0.8		N	3.4	9	SW	94.6	33	10	F
10	33	13	23	-10	42	0			1	S	4.0	11	W	86.3	142	0	F
11	28	23	26	-7	39	0	T	T	1	NE	2.8	11	ESE	89.3	31	10	F
12	29	14	22	-11	43	0			1	W	3.4	8	E	91.3	70	8	F
13	28	22	25	-8	40	0			1	NW	2.8	7	SSE	91.5	29	10	F
14	33	27	30	-3	35	0			1	W	3.1	9	W	84.5	75	10	F
15	43	23	33	+1	32	0			T	SW	6.9	25	SW	76.4	98	4	KFR 0630
16	41	31	36	+4	29	0				NW	7.0	18	NW	79.0	85	9
17	44	25	34	+3	31	0				SW	6.6	23	SW	78.6	83	9	F
18	44	30	37	+6	28	0	0.17			NW	7.3	27	WSW	92.4	51	10	F, KFR 1530
19	50	41	46	+15	19	0				S	12.7	42	S	64.0	49	10
20	49	34	42	+12	23	0				W	10.4	25	SW	61.9	121	3	KFR 0530
21	44	24	34	+4	31	0				W	5.9	27	W	60.7	128	1
22	34	21	28	-2	37	0				NW	4.7	17	NW	90.2	31	10	KFR 1630
23	33	23	28	-2	37	0	0.04			NW	5.2	18	NW	95.9	32	10	GL, KFR 2200
24	47	26	36	+6	29	0				W	10.5	32	WNW	65.1	126	1
25	36	21	28	-2	37	0				NW	5.5	14	WSW	83.5	51	10	KFR 2030
26	36	21	28	-2	37	0				W	5.7	18	W	85.4	61	8
27	32	18	25	-5	40	0	0.17	1.6		NW	5.9	11	NW	90.0	42	10	F, KFR 2300
28	30	24	27	-2	38	0	0.01	T	2	NW	4.6	18	NW	96.8	84	10	F
29	38	20	29	0	36	0			1	NW	6.5	60	NNW	89.0	85	7	KFR 2308
30	43	27	35	+6	30	0			T	W	16.9	42	W	61.0	123	2
31	43	25	34	+6	31	0			T	NW	7.5	18	WSW	67.6	134	0
SUM					1001	0	0.53	2.6
AVG	40.0	25.5	32.7								7.6					7.0

NOTES:				PRECIPITATION (IN.)				MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST				TOTAL FOR THE MONTH			0.53	A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace				DEPARTURE FROM NORM			-0.58	D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation				24HR MAX	0.18	ON	27-28	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	10	>= 0.25	0	BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH			32.7	>= 0.01	9	>= 0.50	0	AVERAGE STATION			29.282
DEPARTURE FROM NORMAL			+1.0	>= 0.10	2	>= 1.00	0	MAX SEA-LEVEL	30.64	ON	31
HIGHEST	63	ON	4+	SNOW (FROZEN PRECIP.) (IN.)				MIN SEA-LEVEL	29.54	ON	20
LOWEST	13	ON	10+	TOTAL FOR THE MONTH			2.6	SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH:				24HR MAX	1.6	ON	27	AVERAGE DAILY TOTAL			78.5
MAXIMUM 32 OR BELOW			7	MAX ON GRND	2	ON	28	MAX DAILY	142.2	ON	10
MAXIMUM 90 OR ABOVE			0	WIND (50-FT LEVEL)				MIN DAILY	29.4	ON	13
MINIMUM 32 OR BELOW			27	AVERAGE SPEED (MPH)			7.6	MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW			0	DEPARTURE FROM NORM			+1.5	CLEAR	8	FOG	11
HEATING DEGREE DAYS (BASE 65ºF)				PEAK GUST	NNW @ 60	ON	29	PARTLY CLOUDY	4	THDR	0
TOTAL FOR THE MONTH			1001	AVERAGE PSYCHROMETRIC DATA				CLOUDY	19	DUST	0
DEPARTURE FROM NORMAL			-31	DRY BULB (ºF)	33.7	WET BULB (ºF)	31.2	RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)			2281	REL. HUM. (%)	78.6	DEW PT.(ºF)	27.2	HIGHEST	100	ON	28+
SEASON DEPARTURE FROM NORM			+42	+ DENOTES LATEST OF MULTIPLE DAYS				LOWEST	34	ON	8