Climatological Report (Monthly)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
513
CXUS56 KPQR 011619
CLMPDX
CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
819 AM PST WED JAN 01 2025
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...THE PORTLAND OR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1940 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
HIGHEST 60 67 12/04
LOWEST 27 30 12/16
12/17
AVG. MAXIMUM 50.3 46.9 3.4 51.4
AVG. MINIMUM 39.5 36.2 3.3 40.9
MEAN 44.9 41.6 3.3 46.1
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.6 -0.6 0
DAYS MIN <= 32 6 8.4 -2.4 3
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 15.24 2015
MINIMUM 1.38 1976
TOTALS 6.79 5.77 1.02 8.73
DAYS >= .01 20 19.2 0.8 MM
DAYS >= .10 16 13.0 3.0 MM
DAYS >= .50 4 3.8 0.2 MM
DAYS >= 1.00 2 0.9 1.1 MM
GREATEST
24 HR. TOTAL 1.73 12/25 TO 12/26
SNOWFALL (INCHES)
TOTALS 0.0
SINCE 7/1 0.0
DEGREE DAYS
HEATING TOTAL 615 727 -112 578
SINCE 7/1 1360 1638 -278 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 751 508 243 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.4
RESULTANT WIND SPEED/DIRECTION 6/130
HIGHEST WIND SPEED/DIRECTION 29/110 DATE 12/13
29/210 12/26
HIGHEST GUST SPEED/DIRECTION 44/220 DATE 12/26
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.75
NUMBER OF DAYS FAIR 4
NUMBER OF DAYS PC 5
NUMBER OF DAYS CLOUDY 22
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 8
LIGHT RAIN 22 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 21 FOG W/VIS <= 1/4 MILE 5
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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