Climatological Report (Monthly)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
103
CXUS56 KPQR 011548
CLMPDX
CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
748 AM PST THU JAN 01 2026
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...THE PORTLAND OR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1940 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
HIGHEST 62 60 12/18
LOWEST 29 27 12/02
AVG. MAXIMUM 52.6 46.9 5.7 50.3
AVG. MINIMUM 42.3 36.2 6.1 39.5
MEAN 47.4 41.6 5.8 44.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.6 -0.6 0
DAYS MIN <= 32 4 8.4 -4.4 6
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 15.24 2015
MINIMUM 1.38 1976
TOTALS 8.51 5.77 2.74 6.79
DAYS >= .01 20 19.2 0.8 20
DAYS >= .10 10 13.0 -3.0 16
DAYS >= .50 6 3.8 2.2 4
DAYS >= 1.00 3 0.9 2.1 2
GREATEST
24 HR. TOTAL 2.50 12/08 TO 12/09
SNOWFALL (INCHES)
TOTALS 0.0
SINCE 7/1 0.0
DEGREE DAYS
HEATING TOTAL 538 727 -189 615
SINCE 7/1 1313 1638 -325 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 694 508 186 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.2
RESULTANT WIND SPEED/DIRECTION 4/180
HIGHEST WIND SPEED/DIRECTION 41/300 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 55/300 DATE 12/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.82
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 3
NUMBER OF DAYS CLOUDY 26
AVERAGE RH (PERCENT) 84
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 7
LIGHT RAIN 25 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 25 FOG W/VIS <= 1/4 MILE 6
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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