CXUS55 KTFX 011621 CLMGTF CLIMATE REPORT NATIONAL WEATHER SERVICE GREAT FALLS MT 921 AM MST THU JAN 01 2026 ................................... ...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1886 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 69 12/05/1939 LOW -43 12/29/1968 HIGHEST 63 12/14 37 26 60 12/15 LOWEST -8 12/28 12 -20 1 AVG. MAXIMUM 44.5 35.6 8.9 45.8 AVG. MINIMUM 22.4 16.3 6.1 24.9 MEAN 33.4 26.0 7.4 35.4 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 3 10.0 -7.0 DAYS MIN <= 32 24 27.0 -3.0 DAYS MIN <= 0 2 4.6 -2.6 PRECIPITATION (INCHES) RECORD MAXIMUM 2.49 1917 MINIMUM T TOTALS 0.38 0.53 -0.15 0.48 DAYS >= .01 10 6.5 3.5 DAYS >= .10 1 1.7 -0.7 DAYS >= .50 0 0.1 -0.1 DAYS >= 1.00 0 0.0 0.0 GREATEST 24 HR. TOTAL 0.10 12/02 TO 12/02 SNOWFALL (INCHES) RECORDS TOTAL 30.5 2008 24 HR TOTAL 14.8 MM TOTALS 2.8 9.6 -6.8 7.4 SINCE 7/1 10.9 25.1 -14.2 MM SNOWDEPTH AVG. 0 DAYS >= TRACE 9 7.1 1.9 DAYS >= 1.0 1 2.8 -1.8 GREATEST SNOW DEPTH 3 12/03 24 HR TOTAL MM DEGREE DAYS HEATING TOTAL 972 1210 -238 910 SINCE 7/1 2400 3147 -747 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 333 310 23 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 15.2 HIGHEST WIND SPEED/DIRECTION 53/260 DATE 12/17 HIGHEST GUST SPEED/DIRECTION 71/250 DATE 12/17 SKY COVER AVERAGE SKY COVER 0.30 AVERAGE RH (PERCENT) 62 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 0 LIGHT RAIN 3 FREEZING RAIN 1 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 9 SLEET 0 FOG 10 FOG W/VIS <= 1/4 MILE 2 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$