Climatological Report (Monthly)
Issued by NWS

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149
CXUS56 KMTR 011823
CLMSTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1123 AM PDT TUE JUN 01 2021

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   05/15/2008
 LOW              35   05/11/2010
HIGHEST           92   05/08                          97  05/26
                       05/10
LOWEST            39   05/27                          37  05/04
AVG. MAXIMUM    79.9               74.7     5.2     77.0
AVG. MINIMUM    46.5               46.6    -0.1     47.4
MEAN            63.2               60.7     2.5     62.2
DAYS MAX >= 90     2                2.0     0.0        5
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.05   2005
 MINIMUM        0.00   2001
TOTALS             T                                1.20
DAILY AVG.         T                                0.04
DAYS >= .01        0                                   9
DAYS >= .10        0                                   4
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL      T   05/19 TO 05/19               0.50  05/11 TO 05/12


DEGREE DAYS
HEATING TOTAL     89                                 126
 SINCE 7/1      2710                                  MM
COOLING TOTAL     41                                  47
 SINCE 1/1        41                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.4
RESULTANT WIND SPEED/DIRECTION   0/250
HIGHEST WIND SPEED/DIRECTION    26/340    DATE  05/19
HIGHEST GUST SPEED/DIRECTION    34/340    DATE  05/01
                                34/320          05/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.19
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      4
HAZE                      6

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

$$



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