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:
April 2008
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 54 28 41 -9 24 0    SE 6.2 16 WNW 43.2 490 1  
2 58 35 46 -4 19 0    NW 5.8 14 SSE 40.8 467 2  
3 65 22 44 -6 21 0    SE 4.2 19 S 43.8 422 5  
4 56 37 46 -5 19 0    W 9.9 44 SW 48.7 204 10 KFR 1345
5 59 30 44 -7 21 0    SW 9.9 26 SW 44.1 455 0  
6 62 40 51 0 14 0    SW 11.7 33 SW 46.2 421 5  
7 58 35 46 -5 19 0 0.02   SW 9.4 36 S 57.2 296 7  
8 54 34 44 -7 21 0    SW 5.4 19 WNW 58.8 280 10  
9 57 32 44 -7 21 0    W 9.0 28 NW 38.6 422 4  
10 64 39 52 0 13 0    W 10.7 33 NW 40.6 434 4  
11 68 31 50 -2 15 0    SE 5.3 16 SSE 45.0 496 2  
12 77 38 58 +6 7 0    NW 5.5 17 W 44.9 514 0  
13 83 42 62 +9 3 0    NW 7.9 31 WSW 43.8 443 7  
14 64 40 52 -1 13 0 0.02   W 14.0 32 W 39.4 481 5 KFR 0415
15 57 38 48 -6 17 0    W 14.3 37 NW 38.8 417 5  
16 65 38 52 -2 13 0    SW 8.0 26 W 40.7 540 0  
17 71 32 52 -2 13 0    NW 9.5 38 NW 46.8 534 1  
18 60 28 44 -10 21 0    W 11.8 43 SW 44.1 493 5  
19 55 27 41 -13 24 0 0.01   SW 7.3 25 W 48.0 463 3  
20 50 29 40 -15 25 0    NW 7.9 25 NW 56.3 370 9  
21 55 24 40 -15 25 0 T T  SW 7.5 31 SW 49.1 479 4  
22 60 35 48 -7 17 0    NE 7.4 36 E 45.5 416 10  
23 61 42 52 -3 13 0 0.03   W 14.2 35 WSW 52.6 443 7 KFR 0315
24 63 38 50 -5 15 0    W 12.2 35 SW 44.5 431 9  
25 63 35 49 -7 16 0    NW 8.3 26 WNW 34.9 558 0  
26 68 31 50 -6 15 0    E 4.5 18 ESE 37.0 564 4  
27 73 45 59 +3 6 0    NW 5.4 13 NW 33.0 410 10  
28 78 42 60 +3 5 0    SW 12.7 40 WSW 40.1 550 3  
29 65 42 54 -3 11 0    W 12.7 36 SW 41.0 529 8 KFR 1330
30 62 37 50 -8 15 0    W 14.1 38 WNW 37.3 545 8  
SUM 481 0 0.08 T    
AVG 62.8 34.9 48.8     9.1 4.9  
NOTES: PRECIPITATION (IN.) MISC. PHENOM. KEY
Daily summary period is midnight to midnight PST TOTAL FOR THE MONTH0.08 A-Hail, BD-Blowing Dust, BS-Blowing Snow
"T" in columns 7-9 denotes a trace DEPARTURE FROM NORM-0.36 D-Dust, AU-Aurora, DL-Distant Lightning
Snow in columns 8-9 is all frozen precipitation 24HR MAX0.03ON23 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) >= T5 >= 0.250 BAROMETRIC PRESSURE (IN.)
AVERAGE FOR THE MONTH48.8 >= 0.014 >= 0.500 AVERAGE STATION29.242
DEPARTURE FROM NORMAL-4.7 >= 0.100 >= 1.000 MAX SEA-LEVEL30.48ON26
HIGHEST83 ON13 SNOW (FROZEN PRECIP.) (IN.) MIN SEA-LEVEL29.73ON29
LOWEST22 ON3 TOTAL FOR THE MONTHT SOLAR RADIATION (LANGLEYS)
NUMBER OF DAYS WITH: 24HR MAXT ON21 AVERAGE DAILY TOTAL452.3
MAXIMUM 32 OR BELOW0 MAX ON GRNDna ONna MAX DAILY564ON26
MAXIMUM 90 OR ABOVE0 WIND (50-FT LEVEL) MIN DAILY204ON4
MINIMUM 32 OR BELOW11 AVERAGE SPEED (MPH)9.1 MISCELLANEOUS NUMBER OF DAYS
MINIMUM 0 OR BELOW0 DEPARTURE FROM NORM+0.3 CLEAR10FOG0
HEATING DEGREE DAYS (BASE 65ºF) PEAK GUSTSW @ 44ON4 PARTLY CLOUDY12THDR0
TOTAL FOR THE MONTH481 AVERAGE PSYCHROMETRIC DATA CLOUDY8 DUST0
DEPARTURE FROM NORMAL+131 DRY BULB (ºF)49.2WET BULB (ºF)39.8 RELATIVE HUMIDITY EXTREMES (%)
SEASON TOTAL (SINCE JULY 1)5312 REL. HUM. (%)44.2DEW PT.(ºF)26.6 HIGHEST88 ON17
SEASON DEPARTURE FROM NORM+341 + DENOTES LATEST OF MULTIPLE DAYS LOWEST16 ON25+