Climatological Report (Monthly)
Issued by NWS

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CXUS56 KSEW 011044
CLMBLI


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
344 AM PDT SUN OCT 1 2017

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

...THE BELLINGHAM WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1949 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              89   09/20/1974
                        09/14/1951
 LOW               28   09/27/1972
HIGHEST            87   09/04        MM      MM       77  09/12
LOWEST             41   09/15        MM      MM       39  09/30
AVG. MAXIMUM     71.0              66.9     4.1     67.1
AVG. MINIMUM     50.8              47.6     3.2     48.9
MEAN             60.9              57.2     3.7     58.0
DAYS MAX >= 90      0               0.0     0.0        0
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         4.71   1969
 MINIMUM         0.00   2012
TOTALS           1.76              1.78   -0.02     1.62
DAILY AVG.       0.06              0.06    0.00     0.05
DAYS >= .01         9               9.8    -0.8       10
DAYS >= .10         7               4.5     2.5        4
DAYS >= .50         0               0.8    -0.8        1
DAYS >= 1.00        0               0.1    -0.1        0
GREATEST
 24 HR. TOTAL    0.38   09/19 TO 09/19

DEGREE_DAYS
HEATING TOTAL     144               234     -90      204
COOLING TOTAL      31                 2      29        0
 SINCE 1/1         97                42      55      101
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
HIGHEST WIND SPEED/DIRECTION    26/150    DATE  09/17
HIGHEST GUST SPEED/DIRECTION    35/140    DATE  09/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       6
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      3
HAZE                      4

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

$$


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