Climatological Report (Monthly)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
797
CXUS56 KMTR 030538
CLMSFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1033 PM PDT THU NOV 2 2017

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   10/05/1987
 LOW               37   10/20/1949
HIGHEST            91   10/24                         84  10/08
                                                          10/07
LOWEST             48   10/18                         51  10/23
AVG. MAXIMUM     74.6              70.4     4.2     70.5
AVG. MINIMUM     53.8                               56.2
MEAN             64.2              61.8     2.4     63.4
DAYS MAX >= 90      1                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.30   1962
 MINIMUM         0.00   2003
                        2002
                        1978
TOTALS           0.21              0.95   -0.74     2.78
DAILY AVG.       0.01              0.03   -0.02     0.09
DAYS >= .01         2                                 10
DAYS >= .10         1                                  6
DAYS >= .50         0                                  3
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.19   10/19 TO 10/19           10/15 TO 10/16
                                                          10/31 TO 10/31
                                                          10/31 TO 10/31

DEGREE_DAYS
HEATING TOTAL      69               121     -52       58
 SINCE 7/1        136               287    -151      221
COOLING TOTAL      55                22      33       16
 SINCE 1/1        346               163     183      141
..................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
RESULTANT WIND SPEED/DIRECTION   6/282
HIGHEST WIND SPEED/DIRECTION    31/270    DATE  10/07
HIGHEST GUST SPEED/DIRECTION    38/260    DATE  10/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      8

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.