Climatological Report (Monthly)
Issued by NWS

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CXUS56 KMTR 020359
CLMLVK


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
859 PM PDT FRI MAY 1 2015

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

...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1930 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   04/29/1981
 LOW               29   04/01/1976
                        04/28/1970
                        04/24/1964
HIGHEST            90   04/30                         92  04/30
LOWEST             38   04/03                         39  04/02
                                                          04/01
AVG. MAXIMUM     74.4              68.6     5.8     74.8
AVG. MINIMUM     46.7                               47.6
MEAN             60.6              56.6     4.0     61.2
DAYS MAX >= 90      1                                  1
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           0.93              1.00   -0.07     0.83
DAILY AVG.       0.03                               0.03
DAYS >= .01         4                                  4
DAYS >= .10         2                                  3
DAYS >= .50         1                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.50   04/07 TO 04/07           04/01 TO 04/01
                                                          03/31 TO 04/01
                                                          04/01 TO 04/01

DEGREE_DAYS
HEATING TOTAL     135               258    -123      121
 SINCE 7/1       1471              2622   -1151     1845
COOLING TOTAL      14                 8       6       19
 SINCE 1/1         20                 9      11       19
..................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
RESULTANT WIND SPEED/DIRECTION   4/276
HIGHEST WIND SPEED/DIRECTION    23/270    DATE  04/13
HIGHEST GUST SPEED/DIRECTION    29/010    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

$$


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