Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
687 CXUS46 KOTX 021915 CLMLWS CLIMATE REPORT NATIONAL WEATHER SERVICE SPOKANE WA 1115 AM PST TUE JAN 02 2024 ................................... ...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1881 TO 2023 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 61 12/05 MM MM 55 12/27 LOWEST 27 12/01 MM MM 5 12/22 12/17 12/24 AVG. MAXIMUM 46.6 40.8 5.8 37.7 AVG. MINIMUM 34.8 29.5 5.3 26.3 MEAN 40.7 35.2 5.5 32.0 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 4.9 -4.9 7 DAYS MIN <= 32 12 20.4 -8.4 24 DAYS MIN <= 0 0 0.1 -0.1 0 PRECIPITATION (INCHES) RECORD MAXIMUM 4.88 1882 MINIMUM 0.14 1970 TOTALS 1.22 1.13 0.09 1.19 DAILY AVG. 0.04 0.04 0.00 0.04 DAYS >= .01 15 11.1 3.9 16 DAYS >= .10 3 4.1 -1.1 4 DAYS >= .50 0 0.2 -0.2 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.36 12/10 TO 12/10 0.22 SNOWFALL (INCHES) RECORDS TOTAL 19.7 2016 TOTALS 0.5 4.1 -3.6 5.0 SINCE 7/1 0.5 5.4 -4.9 MM SNOWDEPTH AVG. 0 1 DAYS >= 1.0 0 1.3 -1.3 MM GREATEST SNOW DEPTH 1 12/01 3 12/24 24 HR TOTAL MM 5.0 DEGREE DAYS HEATING TOTAL 747 925 -178 1015 SINCE 7/1 1809 2107 -298 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 1321 912 409 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.3 HIGHEST WIND SPEED/DIRECTION 28/170 DATE 12/09 HIGHEST GUST SPEED/DIRECTION 35/170 DATE 12/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.57 NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 10 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 2 HEAVY RAIN 0 RAIN 3 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 2 SLEET 0 FOG 13 FOG W/VIS <= 1/4 MILE 9 HAZE 5 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ DECEMBER 2023 BROUGHT WARMER THAN NORMAL TEMPERATURES TO SOUTHEAST WASHINGTON AND THE LEWISTON AREA. PRECIPITATION WAS ALSO ABOVE NORMAL EXCEPT IN THE CENTRAL PANHANDLE MOUNTAINS. FOR LEWISTON IT WAS THE 6TH WARMEST DECEMBER ON RECORD. ON THE 1ST SNOW CHANGED TO RAIN WITH ACCUMULATIONS RANGING FROM 1-3" IN THE PALOUSE WITH A HALF INCH IN LEWISTON. FROM THE 2ND THROUGH THE 7TH MUCH WARMER CONDITIONS WERE OBSERVED WITH A PAIR OF ATMOSPHERIC RIVERS. LEWISTON REACHED 61F ON THE 5TH WITH A LOW OF 50F. THE AVERAGE TEMPERATURE FOR THIS DATE WAS 20 DEGREES ABOVE NORMAL. THE HEAVIEST RAIN WAS FOCUSED NORTH OF THE AREA ACROSS NE WASHINGTON AND NORTH IDAHO PANHANDLE. A COOLER STORM ARRIVED ON THE 9TH THROUGH THE MORNING OF THE 10TH WITH WIDESPREAD PRECIPITATION. WET SNOW FELL ON THE PALOUSE AND ST MARIES AREAS WITH 2" IN PULLMAN, 6" MOSCOW AND KELLOGG, AND 10" NEAR ST MARIES. THE REMAINDER OF THE MONTH BROUGHT MUCH QUIETER WEATHER WITH PERIODS OF LIGHT RAIN. THE WARM SPELL ON THE 5TH AND 6TH SET SEVERAL TEMPERATURE RECORDS. THIS INCLUDES A RECORD HIGH TEMPERATURE OF 61F ON THE 5TH, AND RECORD WARM LOW TEMPERATURES OF 50F AND 48F ON THE 5TH AND 6TH RESPECTIVELY.