Climatological Report (Monthly)
Issued by NWS

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077
CXUS56 KMTR 010941
CLMSTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
141 AM PST SUN NOV 01 2020

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1998 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   MM
 LOW              27   10/30/2019
HIGHEST          105R  10/03                          94  10/24
LOWEST            35   10/28                          27  10/30
                       10/29
                       10/31
AVG. MAXIMUM    85.8               76.4     9.4     80.1
AVG. MINIMUM    46.5               45.0     1.5     40.5
MEAN            66.1               60.7     5.4     60.3
DAYS MAX >= 90    13                2.4    10.6        5
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        3
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.57   2016
 MINIMUM        0.01   2013
TOTALS             TR                               0.02
DAILY AVG.         T                                0.00
DAYS >= .01        0                                   1
DAYS >= .10        0                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL      T   10/10 TO 10/10               0.02  10/19 TO 10/19
                       10/11 TO 10/11
                       10/12 TO 10/12


DEGREE DAYS
HEATING TOTAL     57                                 166
 SINCE 7/1        82                                 202
COOLING TOTAL    101                                  29
 SINCE 1/1       729                                 569
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.8
RESULTANT WIND SPEED/DIRECTION   1/130
HIGHEST WIND SPEED/DIRECTION    35/020    DATE  10/25
HIGHEST GUST SPEED/DIRECTION    41/030    DATE  10/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.22
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     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     11
HAZE                     11

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

$$



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