Climatological Report (Monthly)
Issued by NWS

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539
CXUS56 KMTR 011539
CLMSTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
739 AM PST MON FEB 1 2016

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              82   01/12/2009
 LOW               20   01/15/2007
HIGHEST            65   01/27                         80  01/31
LOWEST             24   01/01                         27  01/02
                                                          01/01
AVG. MAXIMUM     56.6              56.7    -0.1     62.9
AVG. MINIMUM     43.4              36.6     6.8     37.7
MEAN             50.0              46.7     3.3     50.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               9.3    -7.3        6
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.57   2010
 MINIMUM         0.10   2014
TOTALS          10.87                               0.12
DAILY AVG.       0.35                               0.00
DAYS >= .01        23                                  4
DAYS >= .10        16                                  0
DAYS >= .50         8                                  0
DAYS >= 1.00        4                                  0
GREATEST
 24 HR. TOTAL    2.67   01/06 TO 01/07           01/16 TO 01/17
                                                          01/31 TO 01/31
                                                          01/31 TO 01/31

DEGREE_DAYS
HEATING TOTAL     456                                451
 SINCE 7/1       1441                               1178
COOLING TOTAL       0                                  0
 SINCE 1/1          0                                  0
..................................................

WIND (MPH)
AVERAGE WIND SPEED              4.2
RESULTANT WIND SPEED/DIRECTION   1/219
HIGHEST WIND SPEED/DIRECTION    29/130    DATE  01/06
HIGHEST GUST SPEED/DIRECTION    39/120    DATE  01/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         19

AVERAGE RH (PERCENT)     85

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      15
LIGHT RAIN               22     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      27     FOG W/VIS <= 1/4 MILE      8
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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