Climatological Report (Monthly)
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000
CXUS56 KMTR 040319
CLMCCR


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
819 PM PDT TUE OCT 3 2017

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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1999 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             111   MM
 LOW               47   09/26/2013
HIGHEST           111R  09/01                        100  09/26
                                                          09/18
LOWEST             50   09/23                         52  09/23
                                                          09/14
                                                          09/13
AVG. MAXIMUM     87.3                               86.0
AVG. MINIMUM     61.2                               56.6
MEAN             74.2                               71.3
DAYS MAX >= 90     11                                  9
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
TOTALS           0.03              0.16   -0.13     0.00
DAILY AVG.       0.00                               0.00
DAYS >= .01         1                                  0
DAYS >= .10         0                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.03   09/13 TO 09/13           09/18 TO 09/19
                                                          09/30 TO 09/30
                                                          09/30 TO 09/30

DEGREE_DAYS
HEATING TOTAL       1                                  3
 SINCE 7/1          1                                  3
COOLING TOTAL     286                                198
 SINCE 1/1       1337                               1065
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
RESULTANT WIND SPEED/DIRECTION   4/234
HIGHEST WIND SPEED/DIRECTION    23/250    DATE  09/18
HIGHEST GUST SPEED/DIRECTION    MM        DATE   MM

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     52

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

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

$$



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