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 1996
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 45 33 39 +4 26 0 2.6 SW 13.230 WSW 65 83 8
2 43 27 35 0 30 0 T T 1.7 S 9.2 44 S 69 61 10 IP,KFR 1600
3 44 22 33 -2 32 0 1.6 W 5.5 15 W 74 143 0
4 29 21 25 -10 40 0 0.090.4 1.4 NW 8.3 19 NW 92 28 10 F,IP,GL,KFR 2110
5 47 25 36 +2 29 0 1.3 SW 9.5 40 SW 69 95 6
6 48 27 38 -4 27 0 1.1 NW 5.0 28 SSW 81 116 7
7 34 26 30 -3 35 0 0.212.1 0.8 NW 7.5 17 NW 95 31 10 F
8 40 32 36 +3 29 0 0.01 2.6 NW 5.3 15 WNW 85 79 9 F
9 37 35 36 +3 29 0 T 0.6 NW 8.7 19 NW 94 35 10 F
10 52 36 44 +12 21 0 0.24 0.4 W 7.5 36 SW 79 77 9 F,KFR 0845
11 45 32 38 +6 27 0 0.10 NW 9.2 42 SSW 74 92 8 KFR 2130
12 45 30 38 +6 27 0 NW 6.6 19 WNW 90 101 7 F
13 49 34 42 +11 23 0 0.04 W 10.532 WSW 75 103 7 KFR 0500
14 49 33 41 +10 24 0 W 7.2 21 W 63 125 2
15 41 27 34 +3 31 0 NW 5.3 23 NW 84 65 9 KFR 2000
16 42 26 34 +4 31 0 W 9.8 27 NNW 52 129 2
17 36 18 27 -3 38 0 NW 5.9 16 N 64 126 4
18 28 17 22 -8 43 0 NW 4.3 12 WNW 79 61 10
19 28 16 22 -8 43 0 E 3.1 13 W 84 44 10
20 29 19 24 -6 41 0 0.081.2 NW 4.2 10 WNW 89 32 9 F
21 32 26 29 -1 36 0 0.081.1 1.0 NW 4.8 13 WNW 90 24 10 F
22 34 28 31 +1 34 0 1.0 NW 4.6 17 WNW 87 20 10 F
23 32 23 28 -2 37 0 0.050.9 1.8 NW 5.5 16 WNW 92 79 10 F
24 26 22 24 -6 41 0 0.111.0 1.7 NW 7.8 21 WNW 94 43 10 F,GL
25 30 21 26 -4 39 0 0.324.0 2.7 NW 10.619 WNW 79 78 9 F,KFR 0100
26 21 15 18 -12 47 0 0.585.6 6.1 NW 7.5 16 WNW 85 46 10 F
27 24 1 12 -17 53 0 0.010.3 9.6 SW 3.4 11 NW 84 115 6 F
28 11 -6 2 -27 63 0 0.020.2 9.2 NW 6.2 20 NW 84 125 4 F,DS
29 22 11 16 -12 49 0 0.805.8 11.7NW 9.5 33 NW 91 71 10 F,IP,GL
30 33 13 23 -5 42 0 0.23 14.5NW 5.6 18 WNW 91 53 10 F,GL
31 52 32 42 +14 23 0 0.72 12.0NW 9.4 36 SW 81 38 10 F
SUM 10900 3.6922.6
AVG 36.423.329.8 7.1 7.9
NOTES: PRECIPITATION (IN.) MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST TOTAL FOR THE MONTH3.69 A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace DEPARTURE FROM NORM+2.66 D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation 24HR MAX0.81ON28-29 F-Fog, IC-Ice Crystals, K-Smoke
Solrad in coluns 15 is in Langleys; g-cal/sq. cm NUMBER OF DAYS WITH: GL-Glaze, T-Thunderstorm, DS-Drifting Snow
TEMPERATURE (ºF) (3-FT LEVEL) >= T19>= 0.254 BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH29.8 >= 0.0117>= 0.503 AVERAGE STATION29.129
DEPARTURE FROM NORMAL-1.6 >= 0.109 >= 1.000 MAX SEA-LEVEL30.84ON17
HIGHEST52 ON31+ SNOW (FROZEN PRECIP.) (IN.) MIN SEA-LEVEL29.21ON31
LOWEST-6 ON28 TOTAL FOR THE MONTH22.6 SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH: 24HR MAX6.0 ON28-29 AVERAGE DAILY TOTAL74.8
MAXIMUM 32 OR BELOW12 MAX ON GRND14.8ON29 MAX DAILY143ON3
MAXIMUM 90 OR ABOVE0 WIND (50-FT LEVEL) MIN DAILY20 ON22
MINIMUM 32 OR BELOW26 AVERAGE SPEED (MPH)7.1 MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW1 DEPARTURE FROM NORM+1.2 CLEAR3 FOG18
HEATING DEGREE DAYS (BASE 65ºF) PEAK GUSTS @ 44ON2 PARTLY CLOUDY7 THDR0
TOTAL FOR THE MONTH1090 AVERAGE PSYCHROMETRIC DATA CLOUDY21DUST0
DEPARTURE FROM NORMAL+48 DRY BULB (ºF)29.9WET BULB (ºF)28.0 RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)2390 REL. HUM. (%)81.2DEW PT.(ºF)24.4 HIGHEST98 ON31+
SEASON DEPARTURE FROM NORM+137 + DENOTES LATEST OF MULTIPLE DAYS LOWEST38 ON16