Climatological Report (Monthly)
Issued by NWS Portland, OR

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
000
CXUS56 KPQR 020119
CLMAST


CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
519 PM PST MON JAN 1 2018

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

...THE ASTORIA OR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            56                                 56  12/20
                                                          12/19
LOWEST             26                                 27  12/16
AVG. MAXIMUM     48.7              48.7     0.0     47.2
AVG. MINIMUM     36.1              36.6    -0.5     35.0
MEAN             42.4              42.7    -0.3     41.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.4    -0.4        0
DAYS MIN <= 32      4               7.5    -3.5       11
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        36.07   1933
 MINIMUM         2.67   1985
TOTALS           7.69              9.89   -2.20    10.35
DAYS >= .01        16              20.6    -4.6       23
DAYS >= .10        12              16.1    -4.1       18
DAYS >= .50         6               6.8    -0.8        5
DAYS >= 1.00        3               2.7     0.3        2
GREATEST
 24 HR. TOTAL    1.67   12/29 TO 12/29

DEGREE_DAYS
HEATING TOTAL     694               693       1      735
 SINCE 7/1       1986              2106    -120     1598
COOLING TOTAL       0                 0       0        0
 SINCE 1/1         55                12      43       62
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
RESULTANT WIND SPEED/DIRECTION   4/104
HIGHEST WIND SPEED/DIRECTION    35/210    DATE  12/29
HIGHEST GUST SPEED/DIRECTION    55/190    DATE  12/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       8
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                7     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      5
HAZE                      0

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.