Climatological Report (Monthly)
Issued by NWS

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893
CXUS56 KMTR 030538
CLMSTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1033 PM PDT THU NOV 2 2017

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             102   MM
 LOW               34   10/30/2013
HIGHEST            93   10/25                         91  10/08
                        10/24
LOWEST             37   10/21                         39  10/23
                        10/15
AVG. MAXIMUM     81.3              76.4     4.9     72.1
AVG. MINIMUM     43.3              45.0    -1.7     48.5
MEAN             62.4              60.7     1.7     60.3
DAYS MAX >= 90      5               2.4     2.6        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.1    -0.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.57   2016
 MINIMUM         0.01   2013
TOTALS           0.21                               7.57
DAILY AVG.       0.01                               0.24
DAYS >= .01         1                                 14
DAYS >= .10         1                                 12
DAYS >= .50         0                                  6
DAYS >= 1.00        0                                  2
GREATEST
 24 HR. TOTAL    0.21   10/19 TO 10/19           10/24 TO 10/25
                                                          10/30 TO 10/30
                                                          10/30 TO 10/30

DEGREE_DAYS
HEATING TOTAL      99                                146
 SINCE 7/1        117                                185
COOLING TOTAL      34                                  9
 SINCE 1/1        635                                356
.................................................

WIND (MPH)
AVERAGE WIND SPEED              4.6
RESULTANT WIND SPEED/DIRECTION   1/344
HIGHEST WIND SPEED/DIRECTION    28/020    DATE  10/08
HIGHEST GUST SPEED/DIRECTION    40/030    DATE  10/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      4
HAZE                     10

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

$$



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