Climatological Report (Annual) Issued by NWS Spokane, WA
866
CXUS56 KOTX 191625 CCA
CLALWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
729 PM PST SAT JAN 11 2020
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2019...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2020
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 117 07/27/1939
LOW -23 12/13/1919
HIGHEST 104 08/07
LOWEST 9 03/04
AVG. MAXIMUM 62.6 63.5 -0.9
AVG. MINIMUM 42.6 42.5 0.1
MEAN 52.6 53.0 -0.4
DAYS MAX >= 90 42 40.1 1.9
DAYS MAX <= 32 22 12.7 9.3
DAYS MIN <= 32 106 75.9 30.1
DAYS MIN <= 0 0 0.7 -0.7
PRECIPITATION (INCHES)
RECORD
MAXIMUM 21.76 1884
MINIMUM 7.73 2007
TOTALS 13.37 12.31 1.06
DAILY AVG. 0.04 0.03 0.01
DAYS >= .01 107 102.8 4.2
DAYS >= .10 41 39.7 1.3
DAYS >= .50 3 3.1 -0.1
DAYS >= 1.00 0 0.2 -0.2
GREATEST
24 HR. TOTAL 0.94 MM
SNOWFALL (INCHES)
RECORDS
TOTAL 62.2 1916
TOTALS 34.6 10.5 24.1
DAYS >= TRACE 33 10.6 22.4
DAYS >= 1.0 10 3.9 6.1
GREATEST
24 HR TOTAL 5.9 MM
DEGREE_DAYS
HEATING TOTAL 5358 5167 191
COOLING TOTAL 964 807 157
FREEZE DATES
RECORD
EARLIEST 09/17/1965
LATEST 05/12/1985
EARLIEST 10/24
LATEST 04/07
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WIND (MPH)
AVERAGE WIND SPEED 5.0
HIGHEST WIND SPEED/DIRECTION 38/220 DATE 07/23
HIGHEST GUST SPEED/DIRECTION 51/170 DATE 01/03
SKY COVER
AVERAGE SKY COVER 0.40
AVERAGE RH (PERCENT) 59
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 19 MIXED PRECIP MM
HEAVY RAIN 6 RAIN 20
LIGHT RAIN 111 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 7
LIGHT SNOW 38 SLEET MM
FOG 90 FOG W/VIS <= 1/4 MILE 32
HAZE 34
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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