Climatological Report (Annual) Issued by NWS Spokane, WA
000
CXUS56 KOTX 110736 CCA
CLALWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
520 AM PST SAT JAN 01 2022
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2021...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2021
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 117 07/27/1939
LOW -23 12/13/1919
HIGHEST 115 06/29
LOWEST 5 12/31
AVG. MAXIMUM 66.7 64.2 2.5
AVG. MINIMUM 45.0 43.3 1.7
MEAN 55.8 53.8 2.0
DAYS MAX >= 90 70 44.1 25.9
DAYS MAX <= 32 10 12.3 -2.3
DAYS MIN <= 32 70 79.8 -9.8
DAYS MIN <= 0 0 0.3 -0.3
PRECIPITATION (INCHES)
RECORD
MAXIMUM 21.76 1884
MINIMUM 7.73 2007
TOTALS 8.62 12.87 -4.25
DAILY AVG. 0.02 0.04 -0.02
DAYS >= .01 97 106.2 -9.2
DAYS >= .10 30 41.4 -11.4
DAYS >= .50 1 3.4 -2.4
DAYS >= 1.00 0 0.2 -0.2
GREATEST
24 HR. TOTAL 0.51 12/30 TO 12/31
SNOWFALL (INCHES)
RECORDS
TOTAL 62.2 1916
TOTALS 22.5 13.0 9.5
DAYS >= TRACE 26 11.0 15.0
DAYS >= 1.0 7 4.2 2.8
GREATEST
24 HR TOTAL 10.8
DEGREE DAYS
HEATING TOTAL 4587 4980 -393
COOLING TOTAL 1378 913 465
FREEZE DATES
RECORD
EARLIEST 09/17/1965
LATEST 05/12/1985
EARLIEST 10/12
LATEST 04/12
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WIND (MPH)
AVERAGE WIND SPEED 5.7
HIGHEST WIND SPEED/DIRECTION 43/250 DATE 04/10
HIGHEST GUST SPEED/DIRECTION 53/250 DATE 03/28
SKY COVER
AVERAGE SKY COVER 0.38
AVERAGE RH (PERCENT) 53
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 15
LIGHT RAIN 109 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 3 SNOW 7
LIGHT SNOW 27 SLEET 0
FOG 77 FOG W/VIS <= 1/4 MILE 31
HAZE 89
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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