Climatological Report (Monthly)
Issued by NWS Portland, OR

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CXUS56 KPQR 011533
CLMHIO

CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
833 AM PDT TUE JUN 01 2021

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

...THE HILLSBORO OR CLIMATE SUMMARY FOR THE MONTH OF MAY 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1929 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST           88                                  92  05/28
LOWEST            33                                  35  05/04
                                                          05/01
AVG. MAXIMUM    70.1               68.7     1.4     69.0
AVG. MINIMUM    43.5               44.7    -1.2     46.7
MEAN            56.8               56.7     0.1     57.9
DAYS MAX >= 90     0                0.4    -0.4        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.5    -0.5        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.77   1998
 MINIMUM        0.11   2018
TOTALS          0.49               2.02   -1.53     1.86
DAYS >= .01        8               12.0    -4.0       15
DAYS >= .10        2                6.1    -4.1        8
DAYS >= .50        0                0.6    -0.6        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.24   05/24 TO 05/25


DEGREE DAYS
HEATING TOTAL    254                266     -12      234
 SINCE 7/1      4443               4686    -243     4577
COOLING TOTAL      7                  9      -2       21
 SINCE 1/1         7                 10      -3       21
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   3/300
HIGHEST WIND SPEED/DIRECTION    25/230    DATE  05/27
HIGHEST GUST SPEED/DIRECTION    38/240    DATE  05/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.43

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$



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