Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
125
CXUS46 KOTX 022231
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
231 PM PST FRI JAN 02 2026
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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
................................................................
TEMPERATURE (F)
RECORD
HIGH 67 12/12/1921
LOW -23 12/13/1919
HIGHEST 65 12/10 MM MM 60 12/18
LOWEST 22 12/28 MM MM 26 12/10
AVG. MAXIMUM 48.8 40.8 8.0 44.6
AVG. MINIMUM 36.5 29.5 7.0 34.0
MEAN 42.6 35.2 7.4 39.3
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 4.9 -4.9 0
DAYS MIN <= 32 7 20.4 -13.4 16
DAYS MIN <= 0 0 0.1 -0.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.88 1882
MINIMUM 0.14 1970
TOTALS 1.57 1.13 0.44 1.43
DAILY AVG. 0.05 0.04 0.01 0.05
DAYS >= .01 18 11.1 6.9 16
DAYS >= .10 6 4.1 1.9 5
DAYS >= .50 0 0.2 -0.2 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.26 12/09 TO 12/10 0.36
SNOWFALL (INCHES)
RECORDS
TOTAL 19.7 2016
TOTALS T 4.1 -4.1 T
SINCE 7/1 T 5.4 -5.4 MM
SNOWDEPTH AVG. 0 MM
DAYS >= 1.0 0 1.3 -1.3 MM
GREATEST
SNOW DEPTH 0 MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 687 925 -238 789
SINCE 7/1 1615 2107 -492 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 1312 912 400 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.0
HIGHEST WIND SPEED/DIRECTION 58/260 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 83/260 DATE 12/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.57
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 9
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 19 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 9
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
DECEMBER 2025 BROUGHT WARMER AND WETTER THAN NORMAL CONDITIONS TO
SOUTHEAST WASHINGTON AND THE SOUTH IDAHO PANHANDLE. IT WAS THE
2ND WARMEST DECEMBER ON RECORD AT THE LEWISTON AIRPORT. FOR
PULLMAN IT WAS THE 4TH WETTEST WITH 5.74 INCHES. IT WAS A VERY ACTIVE
MONTH FOR THE INLAND NORTHWEST. FROM THE 5TH THROUGH THE 10TH: AN
ATMOSPHERIC RIVER BROUGHT SEVERAL ROUNDS OF RAIN AND WINDY CONDITIONS.
THE PULLMAN AIRPORT RECORDED A PEAK WIND OF 50 TO 54 MPH ON THE 6TH,
AND EVERY DAY FROM THE 8TH THROUGH THE 11TH. THE 8TH BROUGHT SOME OF
THE STRONGEST GUSTS INCLUDING 62 MPH SILCOTT ISLAND, AND 60 MPH AT
SHIRROD HILL. THE COEUR D`ALENE RIVER AT CATALDO REACHED MODERATE
FLOOD STAGE, CRESTING AT 46.38 FEET. THE COEUR D`ALENE RIVER AT
ENAVILLE REACHED THE MINOR FLOOD STAGE LEVEL CRESTING AT 72.2 FEET.
FLOODING OF HOMES OCCURRED ALONG THE RIVER NEAR KINGSTON ALONG WITH
A SWIFT WATER RESCUE OF THREE PEOPLE FROM A HOME
ON THE 17TH A HIGH WIND EVENT OCCURRED WITH THE STRONGEST WIND GUST
EVER RECORDED AT THE LEWISTON AIRPORT WITH 83 MPH. PULLMAN AIRPORT
ALSO STRONGEST GUST WITH 81 MPH. ALDER RIDGE RECORDED A 99 MPH GUST
AS WELL. THESE WINDS BROUGHT NUMEROUS TREES DOWN AND POWERLINES ACROSS
THE REGION. MULTIPLE SEMI TRUCKS WERE BLOWN OVER ON US-12, US-195,
AND US-95. SOME TREES FELL ON VEHICLES AND HOMES CAUSING SIGNIFICANT
DAMAGE. THE LAST COUPLE WEEKS OF DECEMBER BROUGHT QUIETER WEATHER WITH
SEVERAL ROUNDS OF LIGHTER PRECIPITATION MOSTLY FALLING AS RAIN IN
THE VALLEYS.
ONE RECORD WAS BROKE DURING THE MONTH AT THE LEWISTON AIRPORT WITH A
HIGH TEMPERATURE OF 65F ON THE 10TH.