Climatological Report (Monthly)
Issued by NWS

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CXUS56 KMTR 020929
CLMSTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
218 AM PDT TUE MAY 2 2017

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

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            84   04/01                         88  04/06
LOWEST             34   04/09                         40  04/26
                                                          04/01
AVG. MAXIMUM     68.2              68.8    -0.6     72.2
AVG. MINIMUM     44.8              42.4     2.4     46.3
MEAN             56.5              55.6     0.9     59.2
DAYS MAX >= 90      0               0.4    -0.4        0
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           4.56                               1.35
DAILY AVG.       0.15                               0.05
DAYS >= .01        12                                  8
DAYS >= .10         8                                  3
DAYS >= .50         2                                  1
DAYS >= 1.00        1                                  0
GREATEST
 24 HR. TOTAL    2.55   04/06 TO 04/07           04/21 TO 04/22
                                                          04/30 TO 04/30
                                                          04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL     248                                166
 SINCE 7/1       2577                               2199
COOLING TOTAL       0                                  2
 SINCE 1/1          0                                  5
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
RESULTANT WIND SPEED/DIRECTION   2/266
HIGHEST WIND SPEED/DIRECTION    26/150    DATE  04/06
HIGHEST GUST SPEED/DIRECTION    33/320    DATE  04/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      3
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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