Climatological Report (Monthly)
Issued by NWS Portland, OR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
876
CXUS56 KPQR 011548
CLMHIO

CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
848 AM PDT SUN JUN 01 2025

...................................

...THE HILLSBORO OR CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1929 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST           MM                                  88  05/10
                                                          05/11
LOWEST            MM                                  34  05/08
AVG. MAXIMUM      MM               68.7      MM     67.5
AVG. MINIMUM      MM               44.7      MM     43.0
MEAN              MM               56.7      MM     55.2
DAYS MAX >= 90    MM                0.4      MM        0
DAYS MAX <= 32    MM                0.0      MM        0
DAYS MIN <= 32    MM                0.5      MM        0
DAYS MIN <= 0     MM                0.0      MM        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.77   1998
 MINIMUM        0.11   2018
TOTALS            MM               2.02      MM     2.46
DAYS >= .01       MM               12.0      MM       14
DAYS >= .10       MM                6.1      MM        6
DAYS >= .50       MM                0.6      MM        2
DAYS >= 1.00      MM                0.0      MM        0
GREATEST
 24 HR. TOTAL     MM


DEGREE DAYS
HEATING TOTAL     MM                266      MM      306
 SINCE 7/1      4325               4686    -361       MM
COOLING TOTAL     MM                  9      MM        8
 SINCE 1/1         2                 10      -8       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
RESULTANT WIND SPEED/DIRECTION  MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    MM        DATE   MM

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER             MM

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             MM     MIXED PRECIP              MM
HEAVY RAIN               MM     RAIN                      MM
LIGHT RAIN               MM     FREEZING RAIN             MM
LT FREEZING RAIN         MM     HAIL                      MM
HEAVY SNOW               MM     SNOW                      MM
LIGHT SNOW               MM     SLEET                     MM
FOG                      MM     FOG W/VIS <= 1/4 MILE     MM
HAZE                     MM

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$