032
CXUS56 KMTR 010844
CLMSTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
144 AM PDT WED OCT 01 2025

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            114   09/06/2022
 LOW              37   09/30/2019
HIGHEST          100   09/01                         100  09/03
                                                          09/23
LOWEST            46   09/14                          45  09/02
                                                          09/15
AVG. MAXIMUM    82.9               83.4    -0.5     84.9
AVG. MINIMUM    53.9               49.6     4.3     50.1
MEAN            68.4               66.5     1.9     67.5
DAYS MAX >= 90     6                7.8    -1.8        9
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        0.96   2022
 MINIMUM        0.00   2024
TOTALS          0.37                                   T
DAILY AVG.      0.01                                0.00
DAYS >= .01        6                                   0
DAYS >= .10        2                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.21   09/29 TO 09/30                  T  09/13 TO 09/13


DEGREE DAYS
HEATING TOTAL      3                                  11
 SINCE 7/1        20                                  MM
COOLING TOTAL    113                                  90
 SINCE 1/1       392                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.4
RESULTANT WIND SPEED/DIRECTION   3/180
HIGHEST WIND SPEED/DIRECTION    20/180    DATE  09/18
HIGHEST GUST SPEED/DIRECTION    26/200    DATE  09/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.37
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      7
HAZE                      9

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

$$