Climatological Report (Monthly)
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CXUS56 KMTR 012355
CLMNUQ


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
355 PM PST TUE JAN 1 2019

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

...THE MOFFETT FIELD NAS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              78   12/05/2003
 LOW               23   12/23/1990
HIGHEST            65   12/15                         69  12/14
                        12/14
LOWEST             36   12/29                         32  12/22
AVG. MAXIMUM     59.7              58.9     0.8     61.7
AVG. MINIMUM     44.3                               39.5
MEAN             52.0                               50.6
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  1
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.55   1955
 MINIMUM         0.02   1989
TOTALS           1.12                               0.08
DAILY AVG.       0.04              0.08   -0.04     0.00
DAYS >= .01         7                                  2
DAYS >= .10         6                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.30   12/16 TO 12/16           12/20 TO 12/20
                                                          12/31 TO 12/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          12/31 TO 12/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

DEGREE_DAYS
HEATING TOTAL     396                                438
 SINCE 7/1        690                                720
COOLING TOTAL       0                                  0
 SINCE 1/1        292                                689
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.9
RESULTANT WIND SPEED/DIRECTION   1/341
HIGHEST WIND SPEED/DIRECTION    26/030    DATE  12/31
HIGHEST GUST SPEED/DIRECTION    32/030    DATE  12/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  5
  0
  0
  0
  0
  2
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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