Climatological Report (Monthly)
Issued by NWS Portland, OR
Issued by NWS Portland, OR
304
CXUS56 KPQR 011442
CLMPDX
CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
742 AM PDT THU OCT 01 2026
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...THE PORTLAND OR CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1940 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
HIGHEST 88 90 09/02
LOWEST 46 48 09/15
AVG. MAXIMUM 72.6 76.7 -4.1 78.2
AVG. MINIMUM 54.4 54.1 0.3 57.1
MEAN 63.5 65.4 -1.9 67.7
DAYS MAX >= 90 0 2.1 -2.1 1
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.62 2013
MINIMUM T 1993
TOTALS 0.93 1.52 -0.59 1.06
DAYS >= .01 7 6.7 0.3 6
DAYS >= .10 4 3.5 0.5 2
DAYS >= .50 0 0.8 -0.8 1
DAYS >= 1.00 0 0.3 -0.3 0
GREATEST
24 HR. TOTAL 0.38 09/02 TO 09/03
SNOWFALL (INCHES)
TOTALS 0.0
SINCE 7/1 0.0
DEGREE DAYS
HEATING TOTAL 61 61 0 17
SINCE 7/1 69 78 -9 MM
COOLING TOTAL 23 73 -50 102
SINCE 1/1 548 504 44 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.1
RESULTANT WIND SPEED/DIRECTION 1/260
HIGHEST WIND SPEED/DIRECTION 29/190 DATE 09/25
HIGHEST GUST SPEED/DIRECTION 44/200 DATE 09/25
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 6
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 10
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 13 FOG W/VIS <= 1/4 MILE 1
HAZE 18
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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