831
CXUS56 KMTR 010833
CLMSTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1233 AM PST SUN FEB 01 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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             82   01/12/2009
 LOW              20   01/15/2007
HIGHEST           71   01/24                          78  01/09
LOWEST            30   01/13                          28  01/22
                                                          01/28
AVG. MAXIMUM    61.5               57.9     3.6     62.6
AVG. MINIMUM    37.8               37.5     0.3     35.9
MEAN            49.6               47.7     1.9     49.3
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32    10                9.1     0.9        9
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       18.96   2017
 MINIMUM        0.10   2014
TOTALS          4.52                                1.11
DAILY AVG.      0.15                                0.04
DAYS >= .01        6                                   3
DAYS >= .10        6                                   2
DAYS >= .50        4                                   1
DAYS >= 1.00       2                                   0
GREATEST
 24 HR. TOTAL   1.86   01/04 TO 01/05               0.63  01/31 TO 01/31


DEGREE DAYS
HEATING TOTAL    468                                 478
 SINCE 7/1      1419                                  MM
COOLING TOTAL      0                                   0
 SINCE 1/1         0                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.6
RESULTANT WIND SPEED/DIRECTION   1/180
HIGHEST WIND SPEED/DIRECTION    28/180    DATE  01/03
HIGHEST GUST SPEED/DIRECTION    40/170    DATE  01/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.39
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      30     FOG W/VIS <= 1/4 MILE     20
HAZE                     10

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

$$