302
CXUS56 KMTR 010831
CLMSTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT FRI MAY 01 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

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           83   04/05                          81  04/13
LOWEST            36   04/02                          38  04/04
                                                          04/12
                                                          04/26
AVG. MAXIMUM    69.3               69.0     0.3     68.8
AVG. MINIMUM    44.0               43.2     0.8     43.8
MEAN            56.7               56.1     0.6     56.3
DAYS MAX >= 90     0                0.6    -0.6       MM
DAYS MAX <= 32     0                0.0     0.0       MM
DAYS MIN <= 32     0                0.5    -0.5       MM
DAYS MIN <= 0      0                0.0     0.0       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.83   2006
 MINIMUM        0.00   2008
TOTALS          3.63                                0.50
DAILY AVG.      0.12                                0.02
DAYS >= .01        9                                  MM
DAYS >= .10        7                                  MM
DAYS >= .50        2                                  MM
DAYS >= 1.00       1                                  MM
GREATEST
 24 HR. TOTAL   1.42   04/20 TO 04/21               0.22  04/01 TO 04/01
                                                          03/31 TO 04/01
                                                          04/01 TO 04/01


DEGREE DAYS
HEATING TOTAL    243                                 252
 SINCE 7/1      2118                                  MM
COOLING TOTAL      0                                   0
 SINCE 1/1        26                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
RESULTANT WIND SPEED/DIRECTION   2/190
HIGHEST WIND SPEED/DIRECTION    21/050    DATE  04/16
HIGHEST GUST SPEED/DIRECTION    39/230    DATE  04/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.42
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       7
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE      7
HAZE                      4

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

$$