Climatological Report (Monthly)
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000
CXUS56 KMTR 011553
CLMSJC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
743 AM PST WED FEB 1 2017

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

...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2017

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            65   01/30                         68  01/29
                                                          01/21
LOWEST             31   01/06        MM               33  01/01
AVG. MAXIMUM     57.4              58.1    -0.7     60.6
AVG. MINIMUM     41.9              42.0    -0.1     47.1
MEAN             49.7                               53.9
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      1                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           5.61              3.07    2.54     4.09
DAILY AVG.       0.18              0.10    0.08     0.13
DAYS >= .01        16                                 18
DAYS >= .10        12                                  9
DAYS >= .50         4                                  3
DAYS >= 1.00        1                                  0
GREATEST
 24 HR. TOTAL    1.14   01/07 TO 01/08           01/05 TO 01/05
                                                          01/31 TO 01/31
                                                          01/31 TO 01/31

DEGREE_DAYS
HEATING TOTAL     468               463       5      338
 SINCE 7/1       1135              1337    -202     1159
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
RESULTANT WIND SPEED/DIRECTION   3/130
HIGHEST WIND SPEED/DIRECTION    39/120    DATE  01/18
HIGHEST GUST SPEED/DIRECTION    50/110    DATE  01/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       9
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      0
HAZE                      8

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

$$



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