


Climatological Report (Monthly)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
894 CXUS55 KMSO 022142 CLMBTM CLIMATE REPORT NATIONAL WEATHER SERVICE MISSOULA MT 342 PM MDT THU OCT 02 2025 ................................... ...THE BUTTE MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1895 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 96 09/03/2022 LOW 3 09/24/1926 HIGHEST 88 09/03 MM MM 89 LOWEST 29 09/23 MM MM 26 AVG. MAXIMUM 74.2 69.1 5.1 74.6 AVG. MINIMUM 39.2 36.5 2.7 39.4 MEAN 56.7 52.8 3.9 57.0 DAYS MAX >= 90 0 0.3 -0.3 0 DAYS MAX <= 32 0 0.1 -0.1 0 DAYS MIN <= 32 2 8.7 -6.7 3 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.54 1947 MINIMUM 0.00 1904 TOTALS 0.59 1.07 -0.48 0.80 DAILY AVG. 0.02 0.04 -0.02 0.03 DAYS >= .01 8 6.9 1.1 6 DAYS >= .10 3 3.1 -0.1 3 DAYS >= .50 0 0.6 -0.6 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.14 09/09 TO 09/10 0.35 DEGREE DAYS HEATING TOTAL 242 368 -126 SINCE 7/1 393 583 -190 COOLING TOTAL 3 2 1 SINCE 1/1 60 83 -23 .............................................................. WIND (MPH) AVERAGE WIND SPEED 4.5 HIGHEST WIND SPEED/DIRECTION 29/250 DATE 09/14 HIGHEST GUST SPEED/DIRECTION 45/250 DATE 09/14 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.18 NUMBER OF DAYS FAIR 25 NUMBER OF DAYS PC 4 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 54 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 4 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 6 FOG W/VIS <= 1/4 MILE 1 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$