


Climatological Report (Monthly)
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
641 CXUS55 KGGW 012025 CLMGGW CLIMATE REPORT NATIONAL WEATHER SERVICE GLASGOW, MT 225 PM MDT WED OCT 01 2025 ................................... ...THE GLASGOW MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1893 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 106 09/07/2022 LOW 14 09/25/1928 HIGHEST 93 09/01 99 LOWEST 39 09/05 42 AVG. MAXIMUM 81.0 72.9 8.1 82.6 AVG. MINIMUM 49.8 2.9 53.1 MEAN 65.4 59.9 5.5 67.8 DAYS MAX >= 90 2 7 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 4.72 1938 MINIMUM 0.00 1899 TOTALS 0.23 1.06 -0.83 1.60 DAILY AVG. 0.01 0.04 -0.03 0.05 DAYS >= .01 3 6 DAYS >= .10 1 DAYS >= .50 0 1 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.21 09/13 TO 09/13 SNOWFALL (INCHES) RECORDS TOTAL 4.6 1926 SNOW DEPTH 2 09/24/1984 TOTALS 0.0 0.0 0.0 0.0 LIQUID EQUIV 0.00 0.00 0.00 0.00 SINCE 7/1 0.0 0.0 0.0 MM LIQUID 7/1 0.00 0.00 0.00 MM SNOWDEPTH AVG. 0 0 DAYS >= TRACE 0 0 DAYS >= 1.0 0 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL 0.0 DEGREE DAYS HEATING TOTAL 55 200 -145 41 SINCE 7/1 78 244 -166 MM COOLING TOTAL 75 47 28 132 SINCE 1/1 596 582 14 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.5 HIGHEST WIND SPEED/DIRECTION 36/340 DATE 09/04 HIGHEST GUST SPEED/DIRECTION 50/340 DATE 09/04 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.06 NUMBER OF DAYS FAIR 30 NUMBER OF DAYS PC 0 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 51 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 1 LIGHT RAIN 5 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 3 FOG W/VIS <= 1/4 MILE 1 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && SEPTEMBER TEMPERATURES WERE MODERATELY ABOVE NORMAL. THE AVERAGE TEMPERATURE OF 65.4 WAS 5.5 DEGREES ABOVE NORMAL. THE AVERAGE HIGH TEMPERATURE WAS 8.1 DEGREES ABOVE NORMAL. SEPTEMBER REACHED AT OR ABOVE 90 DEGREES TWICE. THE COOLEST HIGH TEMPERATURE WAS 68 DEGREES ON THE 5TH, WHICH BY THE WAY WAS ALSO THE COOLEST TEMPERATURE IN AUGUST. THE AVERAGE LOW TEMPERATURE WAS 2.9 DEGREES ABOVE NORMAL. THE PRECIPITATION TOTAL FOR SEPTEMBER WAS 0.23 INCHES. NORMAL PRECIPITATION FOR THE MONTH OF SEPTEMBER IS 1.06 INCHES. THE WETTEST DAY WAS THE 13TH WHEN 0.21 INCHES OF PRECIPITATION WAS MEASURED. THE PEAK WIND GUST FOR THE MONTH WAS 50 MPH ON THE 4TH. THE WINDIEST DAY WAS ALSO THE 5TH WITH AN AVERAGE WIND SPEED OF 19.4 MPH. LOOKING AHEAD TO OCTOBER, THE NORMAL HIGH STARTS WITH 66 AND COOLS TO 48 BY THE END OF THE MONTH. THE NORMAL LOW STARTS AT 41 AND LOWERS TO 27. NORMAL OCTOBER PRECIPITATION IS 0.90 INCHES. $$