Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
771
CXUS46 KOTX 042107
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
207 PM PDT MON SEP 04 2025
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2025
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 104 08/31 MM MM 111 08/02
LOWEST 57 08/05 MM MM 50 08/29
AVG. MAXIMUM 91.6 90.1 1.5 90.8
AVG. MINIMUM 63.9 60.3 3.6 61.8
MEAN 77.8 75.2 2.6 76.3
DAYS MAX >= 90 21 16.9 4.1 18
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 0.29 0.51 -0.22 0.44
DAILY AVG. 0.01 0.02 -0.01 0.01
DAYS >= .01 7 3.4 3.6 4
DAYS >= .10 1 1.3 -0.3 3
DAYS >= .50 0 0.2 -0.2 0
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.13 08/06 TO 08/07 0.18
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 0.0
DEGREE DAYS
HEATING TOTAL 0 6 -6 2
SINCE 7/1 0 7 -7 MM
COOLING TOTAL 402 322 80 360
SINCE 1/1 1100 806 294 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.0
HIGHEST WIND SPEED/DIRECTION 29/300 DATE 08/07
HIGHEST GUST SPEED/DIRECTION 42/300 DATE 08/07
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.12
NUMBER OF DAYS FAIR 26
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 41
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 1 FOG W/VIS <= 1/4 MILE 0
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
AUGUST 2025 BROUGHT WARMER THAN NORMAL TEMPERATURES TO SOUTHEAST
WASHINGTON AND THE SOUTH IDAHO PANHANDLE. PRECIPITATION WAS DRIER
THAN NORMAL, EXCEPT FOR LOCALIZED AREAS THAT RECEIVED HEAVIER
RAINFALL FROM THUNDERSTORMS. ON THE 7TH THUNDERSTORMS PRODUCED
ABUNDANT LIGHTNING ON THE CAMAS PRAIRIE AROUND NEZPERCE AND KAMIAH.
WITH HALF INCH HAIL REPORTED IN NEZPERCE. SMOKE FROM AREA WILDFIRES
IN CENTRAL IDAHO MOVED INTO THE REGION FROM THE 22ND THROUGH THE
27TH PRODUCING DEGRADED AIR QUALITY RANGING FROM UNHEALTHY FOR
SENSITIVE GROUPS TO HAZARDOUS. KAMIAH AND THE CAMAS PRAIRIE WERE
THE HARDEST HIT AREAS FROM SMOKE.
NO RECORDS WERE BROKEN DURING THE MONTH AT THE LEWISTON AIRPORT.