Climatological Report (Monthly)
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000
CXUS56 KMTR 040213
CLMSTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
709 PM PDT THU AUG 3 2017

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             108   07/16/2017
                        07/07/2017
                        07/22/2006
 LOW               38   07/07/2012
HIGHEST           108R  07/16                         97  07/26
                                                          07/23
LOWEST             47   07/19                         47  07/22
AVG. MAXIMUM     88.2              83.1     5.1     84.5
AVG. MINIMUM     50.6              51.9    -1.3     50.8
MEAN             69.4              67.5     1.9     67.7
DAYS MAX >= 90     13               5.7     7.3        7
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         0.10   2007
 MINIMUM         0.00   2012
                        2011
                        2010
TOTALS           0.00R                                 T
DAILY AVG.       0.00                                  T
DAYS >= .01         0                                  0
DAYS >= .10         0                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.00   07/31 TO 07/31           07/25 TO 07/25
                        07/30 TO 07/30                    07/31 TO 07/31
                        07/29 TO 07/29                    07/31 TO 07/31

DEGREE_DAYS
HEATING TOTAL       0                                  7
 SINCE 7/1          0                                  7
COOLING TOTAL     143                                 97
 SINCE 1/1        300                                212
..................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
RESULTANT WIND SPEED/DIRECTION   5/166
HIGHEST WIND SPEED/DIRECTION    17/140    DATE  07/08
HIGHEST GUST SPEED/DIRECTION    31/200    DATE  07/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     64

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                      20     FOG W/VIS <= 1/4 MILE      4
HAZE                      8

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

$$



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