Climatological Report (Monthly) Issued by NWS
000
CXUS56 KSEW 011230
CLMOLM
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
430 AM PST MON JAN 01 2024
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...THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1941 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 64 12/10/2014
12/01/1958
LOW -7 12/23/1983
HIGHEST 62 12/04 MM MM 55 12/27
12/05
LOWEST 30 12/23 MM MM 22 12/01
12/22
AVG. MAXIMUM 51.6 44.9 6.7 43.1
AVG. MINIMUM 39.3 32.8 6.5 32.5
MEAN 45.5 38.9 6.6 37.8
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.6 -0.6 2
DAYS MIN <= 32 2 14.3 -12.3 16
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 14.50 2015
MINIMUM 2.02 2013
TOTALS 10.72 7.85 2.87 7.73
DAILY AVG. 0.35 0.25 0.10 0.25
DAYS >= .01 20 20.2 -0.2 26
DAYS >= .10 17 13.6 3.4 15
DAYS >= .50 6 5.2 0.8 6
DAYS >= 1.00 3 1.9 1.1 1
GREATEST
24 HR. TOTAL 3.91 12/04 TO 12/05
DEGREE DAYS
HEATING TOTAL 597 811 -214 834
SINCE 7/1 1797 2240 -443 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 203 113 90 MM
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WIND (MPH)
AVERAGE WIND SPEED 4.2
HIGHEST WIND SPEED/DIRECTION 26/180 DATE 12/02
HIGHEST GUST SPEED/DIRECTION 38/200 DATE 12/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.83
NUMBER OF DAYS FAIR 1
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 22
AVERAGE RH (PERCENT) 85
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 11
LIGHT RAIN 21 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 30 FOG W/VIS <= 1/4 MILE 17
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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