656
CXUS56 KSEW 291832 CCA
CLMSEW
CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE SEATTLE
1032 AM PST WED JAN 29 2025
...............................
...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...
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
............................................................
TEMPERATURE (F)
RECORD
HIGH 65 12/10/2014
LOW 10 12/21/1990
HIGHEST 57 12/23 MM MM 64 12/29
LOWEST 30 12/03 MM MM 33 12/17
12/23
12/24
AVG. MAXIMUM 49.8 46.5 3.3 50.5
AVG. MINIMUM 39.7 37.0 2.7 39.8
MEAN 44.8 41.8 3.0 45.2
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.3 -0.3 0
DAYS MIN <= 32 3 6.7 -3.7 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.85 1996
MINIMUM 1.49 2011
TOTALS 6.71 5.55 1.16 8.83
DAILY AVG. 0.22 0.18 0.04 0.28
DAYS >= .01 21 19.6 0.5 21
DAYS >= .10 16 12.1 3.9 16
DAYS >= .50 5 3.2 1.8 6
DAYS >= 1.00 0 1.0 -1.0 2
SNOWFALL (INCHES)
TOTALS 0.0 0.0
SINCE 7/1 0.0 MM
SNOWDEPTH AVG. 0 0
GREATEST
SNOW DEPTH 0 0 MM
DEGREE DAYS
HEATING TOTAL 621 721 -100 608
SINCE 7/1 1559 1796 -237 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 342 210 132 MM
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WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 21 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 8 FOG W/VIS <= 1/4 MILE 2
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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