Climatological Report (Monthly)
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000
CXUS56 KMTR 011620
CLMSJC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
816 AM PST THU FEB 1 2018

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

...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              79   01/08/1962
 LOW               18   01/06/1894
HIGHEST            70   01/30                         65  01/30
                        01/04
LOWEST             37   01/21        MM               31  01/06
AVG. MAXIMUM     62.7              58.1     4.6     57.4
AVG. MINIMUM     46.1              42.0     4.1     41.9
MEAN             54.4                               49.7
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  1
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           3.20              3.07    0.13     5.61
DAILY AVG.       0.10              0.10    0.00     0.18
DAYS >= .01        11                                 16
DAYS >= .10         6                                 12
DAYS >= .50         2                                  4
DAYS >= 1.00        1                                  1
GREATEST
 24 HR. TOTAL    1.40   01/08 TO 01/08           01/07 TO 01/08

DEGREE_DAYS
HEATING TOTAL     322               463    -141      468
 SINCE 7/1        940              1337    -397     1135
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.4
RESULTANT WIND SPEED/DIRECTION   1/220
HIGHEST WIND SPEED/DIRECTION    24/180    DATE  01/24
HIGHEST GUST SPEED/DIRECTION    29/180    DATE  01/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     76

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

$$




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