Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
655
CXUS46 KOTX 050245
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
745 PM PDT MON AUG 04 2025
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 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 117 07/27/1939
LOW 41 07/02/1955
07/07/1895
HIGHEST 104 07/08 MM MM 111 07/21
07/30
LOWEST 58 07/07 MM MM 54 07/26
07/27
AVG. MAXIMUM 93.3 90.8 2.5 97.2
AVG. MINIMUM 64.5 60.9 3.6 65.0
MEAN 78.9 75.8 3.1 81.1
DAYS MAX >= 90 22 17.6 4.4 24
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 2.60 1987
MINIMUM T 2018
TOTALS 0.07 0.47 -0.40 0.07
DAILY AVG. 0.00 0.02 -0.02 0.00
DAYS >= .01 3 3.9 -0.9 2
DAYS >= .10 0 1.1 -1.1 0
DAYS >= .50 0 0.1 -0.1 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.06 07/20 TO 07/21 0.07
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 0 5 -5 0
SINCE 7/1 0 2 -2 MM
COOLING TOTAL 439 341 98 508
SINCE 1/1 698 484 214 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.9
HIGHEST WIND SPEED/DIRECTION 28/300 DATE 07/09
28/300 07/18
28/180 07/28
HIGHEST GUST SPEED/DIRECTION 40/320 DATE 07/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.07
NUMBER OF DAYS FAIR 30
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 37
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
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 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
JULY 2025 BROUGHT WARMER AND DRIER THAN NORMAL CONDITIONS TO
SOUTHEAST WASHINGTON AND THE SOUTH IDAHO PANHANDLE. THE MONTH
STARTED ON A WARM NOTE THROUGH THE 14TH WITH ABOVE NORMAL
TEMPERATURES WITH LEWISTON REACHING 100F OR WARMER ON THE 1ST, 8TH,
13TH, AND 14TH. ON THE 21ST AND 22ND A COOLER AND SHOWERY PATTERN
ARRIVED WITH LEWISTON ONLY REACHING 74F FOR A HIGH TEMPERATURE ON
THE 21ST. ISOLATED THUNDERSTORMS ALSO OCCURRED FROM THE PALOUSE INTO
THE SOUTH IDAHO PANHANDLE. ANOTHER WARM SPELL ARRIVED TO CLOSE OUT
THE MONTH FROM 28TH THROUGH THE 31ST. LEWISTON SURPASSED 100F AGAIN
ON THE 29TH AND 30TH WITH 101F AND 104F RESPECTIVELY. THE HOT
TEMPERATUES COMBINED WITH INCREASED MOISTURE LED TO ISOLATED
THUNDERSTORMS IN THE AREA ON THE 28TH AND 31ST.
NO RECORDS WERE SET DURING THE MONTH AT THE LEWISTON AIRPORT.