Climatological Report (Monthly)
Issued by NWS

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000
CXUS56 KSEW 011050
CLMBLI

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
350 AM PDT SUN OCT 01 2023

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

...THE BELLINGHAM WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1949 TO 2023

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           79   09/02         MM      MM       83  09/09
LOWEST            37   09/30         MM      MM       42  09/19
                                                          09/21
AVG. MAXIMUM    68.4               68.1     0.3     72.2
AVG. MINIMUM    49.4               49.6    -0.2     50.3
MEAN            58.9               58.9     0.0     61.3
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        4.73   2019
 MINIMUM        0.00   2012
TOTALS          1.15               2.01   -0.86        T
DAILY AVG.      0.04               0.07   -0.03        T
DAYS >= .01        0               11.0   -11.0        0
DAYS >= .10        0                5.3    -5.3        0
DAYS >= .50        0                1.0    -1.0        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.35   09/24 TO 09/25


DEGREE DAYS
HEATING TOTAL    178                189     -11      107
 SINCE 7/1       248                321     -73       MM
COOLING TOTAL      1                  4      -3        1
 SINCE 1/1       111                 75      36       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
HIGHEST WIND SPEED/DIRECTION    29/160    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    42/150    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.41
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               13     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     10
HAZE                      0

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

$$


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