Climatological Report (Monthly)
Issued by NWS

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CXUS56 KMTR 020359
CLMSTS


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

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              94   04/26/2004
 LOW               31   04/09/1999
                        04/01/1999
HIGHEST            91   04/30                         92  04/29
LOWEST             35   04/06                         38  04/05
AVG. MAXIMUM     72.7              68.8     3.9     72.1
AVG. MINIMUM     43.4              42.4     1.0     44.9
MEAN             58.1              55.6     2.5     58.5
DAYS MAX >= 90      1               0.4     0.6        2
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.83   2006
 MINIMUM         0.00   2008
TOTALS           1.50                               0.73
DAILY AVG.       0.05                               0.03
DAYS >= .01         5                                  4
DAYS >= .10         4                                  2
DAYS >= .50         1                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.75   04/07 TO 04/07           03/31 TO 04/01
                                                          04/30 TO 04/30
                                                          04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL     204                                190
 SINCE 7/1       1879                               2397
COOLING TOTAL      10                                  9
 SINCE 1/1         11                                  9
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   1/248
HIGHEST WIND SPEED/DIRECTION    24/330    DATE  04/13
HIGHEST GUST SPEED/DIRECTION    31/330    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      4
HAZE                      4

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

$$



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