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282
CXUS56 KMTR 012302
CLMHWD


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
302 PM PST THU JAN 1 2015

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

...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014

WEATHER         OBSERVED          NORMAL   LAST YEAR`S
                 VALUE   DATE(S)  VALUE    VALUE  DATE(S)

.........................................................
TEMPERATURE (F)
RECORD
 HIGH              74   MM
 LOW                    12/23/2013
                        12/20/2013
                        12/09/1972
HIGHEST            71   12/08                  70  12/29
                        12/01
LOWEST             36   12/31                  28  12/09
AVG. MAXIMUM     63.1                        58.8
AVG. MINIMUM     49.6                        37.1
MEAN             56.3                        47.6
DAYS MAX >= 90      0                           0
DAYS MAX <= 32      0                           0
DAYS MIN <= 32      0                           4
DAYS MIN <= 0       0                           0

PRECIPITATION (INCHES)
TOTALS           7.78              3.12      0.32
DAILY AVG.       0.25                        0.01
DAYS >= .01        15                           2
DAYS >= .10        11                           1
DAYS >= .50         5                           0

DEGREE_DAYS
HEATING TOTAL     259                         409
 SINCE 7/1        527                         850
COOLING TOTAL       0                           0
 SINCE 1/1        568                         250
..........................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
RESULTANT WIND SPEED/DIRECTION   2/103
HIGHEST WIND SPEED/DIRECTION    35/020    DATE  12/30
HIGHEST GUST SPEED/DIRECTION    45/020    DATE  12/30

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

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       7
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      1
HAZE                      7

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

$$




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