Climatological Report (Monthly)
Issued by NWS
Issued by NWS
903
CXUS56 KPDT 012031
CLMPSC
CLIMATE REPORT
NATIONAL WEATHER SERVICE PENDLETON,OR
1231 PM PST THU JAN 01 2026
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...THE PASCO WA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 71 12/26/1898
12/18/1917
LOW -29 12/13/1919
HIGHEST 69 12/15 61 12/18
LOWEST 19 12/31 22 12/09
AVG. MAXIMUM 51.1 41.0 10.1 44.2
AVG. MINIMUM 34.8 27.3 7.5 32.6
MEAN 43.0 34.1 8.9 38.4
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 1 5.8 -4.8 0
DAYS MIN <= 32 16 22.9 -6.9 15
DAYS MIN <= 0 0 0.5 -0.5 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.47 1973
MINIMUM 0.13 2011
TOTALS 1.76 1.03 0.73 2.16
DAILY AVG. 0.06 0.03 0.03 0.07
DAYS >= .01 11 10.3 0.7 13
DAYS >= .10 5 3.5 1.5 9
DAYS >= .50 0 0.2 -0.2 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.38 12/26 TO 12/26 0.66 12/25 TO 12/26
DEGREE DAYS
HEATING TOTAL 675 956 -281 820
SINCE 7/1 1712 2180 -468
COOLING TOTAL 0 0 0 0
SINCE 1/1 1072 788 284
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WIND (MPH)
AVERAGE WIND SPEED 7.4
RESULTANT WIND SPEED/DIRECTION 5/230
HIGHEST WIND SPEED/DIRECTION 47/250 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 68/260 DATE 12/17
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 4
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 4
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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