Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
772
CXUS46 KOTX 021846
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
1146 AM PDT WED SEP 02 2026
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 115 08/04/1961
LOW 41 08/20/1945
08/24/1992
HIGHEST 106 08/21 MM MM 104 08/31
LOWEST 51 08/30 MM MM 57 08/05
AVG. MAXIMUM 91.1 90.1 1.0 91.6
AVG. MINIMUM 60.7 60.3 0.4 63.9
MEAN 75.9 75.2 0.7 77.8
DAYS MAX >= 90 19 16.9 2.1 21
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.96 1989
MINIMUM 0.00 1917
TOTALS 0.09 0.51 -0.42 0.29
DAILY AVG. 0.00 0.02 -0.02 0.01
DAYS >= .01 3 3.4 -0.4 7
DAYS >= .10 0 1.3 -1.3 1
DAYS >= .50 0 0.2 -0.2 0
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.07 08/15 TO 08/16 0.13
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 1 6 -5 0
SINCE 7/1 1 7 -6 MM
COOLING TOTAL 349 322 27 402
SINCE 1/1 874 806 68 MM
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WIND (MPH)
AVERAGE WIND SPEED 4.8
HIGHEST WIND SPEED/DIRECTION 33/300 DATE 08/01
HIGHEST GUST SPEED/DIRECTION 46/310 DATE 08/01
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.04
NUMBER OF DAYS FAIR 31
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 33
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 4 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 0 FOG W/VIS <= 1/4 MILE 0
HAZE 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
AUGUST 2026 BROUGHT SLIGHTLY WARMER AND DRIER THAN NORMAL CONDITIONS
TO SOUTHEAST WASHINGTON INTO THE SOUTH IDAHO PANHANDLE. ONLY A TRACE
OF RAIN OCCURRED DURING THE MONTH AT THE PULLMAN AIRPORT. THE 1ST
BROUGHT CRITICAL TO EXTREME FIRE WEAHTER CONDITIONS DUE TO VERY DRY
AND WINDY CONDITIONS WITH A STRONG DRY COLD FRONT PASSAGE. ISOLATED
THUNDERSTORMS OCCURRED AROUND THE AREA ON THE 15TH, 16TH, AND 22ND.
CONTINUED ACTIVE WILDFIRE ACTIVITY AROUND THE REGION RESULTED IN
SEVERAL DAYS OF AIR QUALITY IMPACTS FROM WILDFIRE SMOKE, ESPECIALLY
DURING THE FIRST HALF OF THE MONTH.
NO RECORDS WERE BROKE DURING THE MONTH AT THE LEWISTON AIRPORT.