027  
CXUS56 KPQR 011548  
CLMPDX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE PORTLAND OREGON  
848 AM PDT SUN JUN 01 2025  
   
...............................
 
 
   
..THE PORTLAND OR CLIMATE SUMMARY FOR THE MONTH OF MAY 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    
............................................................
 
 
TEMPERATURE (F)  
HIGHEST 86 91 05/10  
LOWEST 40 41 05/08  
AVG. MAXIMUM 70.5 69.3 1.2 69.2  
AVG. MINIMUM 49.8 49.4 0.4 49.4  
MEAN 60.1 59.4 0.7 59.3  
DAYS MAX >= 90 0 0.4 -0.4 2  
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 5.55 1998  
MINIMUM 0.10 1992  
TOTALS 1.92 2.51 -0.59 2.44  
DAYS >= .01 10 13.2 -3.2 11  
DAYS >= .10 4 7.3 -3.3 6  
DAYS >= .50 1 1.3 -0.3 1  
DAYS >= 1.00 1 0.2 0.8 0  
GREATEST  
24 HR. TOTAL 1.28 05/16 TO 05/17  
 
SNOWFALL (INCHES)  
TOTALS 0.0  
SINCE 7/1 3.0  
 
DEGREE DAYS  
HEATING TOTAL 160 196 -36 192  
SINCE 7/1 3540 4022 -482 MM  
COOLING TOTAL 14 21 -7 23  
SINCE 1/1 18 23 -5 MM    
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 5.5  
RESULTANT WIND SPEED/DIRECTION 3/300  
HIGHEST WIND SPEED/DIRECTION 24/300 DATE 05/12  
HIGHEST GUST SPEED/DIRECTION 32/300 DATE 05/12  
32/310 05/31  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.58  
NUMBER OF DAYS FAIR 7  
NUMBER OF DAYS PC 13  
NUMBER OF DAYS CLOUDY 9  
 
AVERAGE RH (PERCENT) 59  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 1 MIXED PRECIP 0  
HEAVY RAIN 1 RAIN 2  
LIGHT RAIN 13 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 7 FOG W/VIS <= 1/4 MILE 0  
HAZE 8  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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