Climatological Report (Monthly) Issued by NWS Seattle/Tacoma, WA
000
CXUS56 KSEW 052102
CLMSEW
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
102 PM PST FRI JAN 05 2024
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...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 65 12/10/2014
LOW 10 12/21/1990
HIGHEST 64 12/29 MM MM 56 12/26
LOWEST 33 12/17 MM MM 19 12/22
12/23
12/24
AVG. MAXIMUM 50.5 46.5 4.0 43.6
AVG. MINIMUM 39.8 37.0 2.8 35.1
MEAN 45.2 41.8 3.4 39.3
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.3 -0.3 2
DAYS MIN <= 32 0 6.7 -6.7 12
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.85 1996
MINIMUM 1.49 2011
TOTALS 8.83 5.55 3.28 7.06
DAILY AVG. 0.28 0.18 0.10 0.23
DAYS >= .01 21 19.6 1.4 23
DAYS >= .10 16 12.1 3.9 13
DAYS >= .50 6 3.2 2.8 5
DAYS >= 1.00 2 1.0 1.0 2
SNOWFALL (INCHES)
TOTALS 0.0 1.6
SINCE 7/1 0.0 MM
SNOWDEPTH AVG. 0 0
GREATEST
SNOW DEPTH 0 1 12/21
12/22
DEGREE DAYS
HEATING TOTAL 608 721 -113 789
SINCE 7/1 1484 1796 -312 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 341 210 131 MM
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WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 8
LIGHT RAIN 21 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 4
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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