Climatological Report (Monthly)
Issued by NWS
Issued by NWS
656 CXUS55 KTFX 011530 CLMHLN CLIMATE REPORT NATIONAL WEATHER SERVICE GREAT FALLS MT 930 AM MDT SAT JUN 01 2024 ................................... ...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2024... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1866 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 95 05/28/1919 LOW 17 05/02/1954 HIGHEST 85 05/28 70 15 87 05/21 LOWEST 29 05/04 36 -7 36 05/10 AVG. MAXIMUM 64.8 66.4 -1.6 73.0 AVG. MINIMUM 41.1 41.5 -0.4 48.1 MEAN 53.0 53.9 -0.9 60.5 DAYS MAX >= 90 0 0.3 -0.3 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 3 3.4 -0.4 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 6.67 1927 MINIMUM 0.24 TOTALS 1.69 1.95 -0.26 1.21 DAYS >= .01 8 11.2 -3.2 DAYS >= .10 3 5.3 -2.3 DAYS >= .50 1 1.1 -0.1 DAYS >= 1.00 0 0.1 -0.1 GREATEST 24 HR. TOTAL 1.01 05/07 TO 05/08 SNOWFALL (INCHES) RECORDS TOTAL 13.9 1927 24 HR TOTAL 12.5 05/10/1967 TO 05/10/1967 TOTALS 0.5 0.1 0.4 0.0 SINCE 7/1 57.9 37.2 20.7 SNOWDEPTH AVG. T DAYS >= TRACE 1 0.2 0.8 DAYS >= 1.0 0 0.0 0.0 GREATEST SNOW DEPTH T 05/29 05/30 05/08 24 HR TOTAL MM DEGREE DAYS HEATING TOTAL 364 350 14 147 SINCE 7/1 6775 7357 -582 MM COOLING TOTAL 0 7 -7 15 SINCE 1/1 0 7 -7 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.5 HIGHEST WIND SPEED/DIRECTION 40/270 DATE 05/17 HIGHEST GUST SPEED/DIRECTION 62/290 DATE 05/17 SKY COVER AVERAGE SKY COVER 0.41 AVERAGE RH (PERCENT) 49 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 1 HEAVY RAIN 0 RAIN 2 LIGHT RAIN 15 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 1 SLEET 0 FOG 3 FOG W/VIS <= 1/4 MILE 1 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$