CDUS45 KTFX 181426 CLIGTF CLIMATE REPORT NATIONAL WEATHER SERVICE GREAT FALLS MT 826 AM MDT MON MAY 18 2026 ................................... ...THE GREAT FALLS MT CLIMATE SUMMARY FOR MAY 17 2026... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1886 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 41 1207 AM 87 2006 65 -24 65 MINIMUM 34 1159 PM 26 2003 39 -5 35 AVERAGE 38 52 -14 50 PRECIPITATION (IN) YESTERDAY 0.22 1.55 1949 0.08 0.14 0.00 MONTH TO DATE 0.72 1.07 -0.35 1.87 SINCE OCT 1 6.44 6.90 -0.46 6.63 SINCE JAN 1 4.60 4.62 -0.02 5.55 SNOWFALL (IN) YESTERDAY T 2.1 1977 0.1 -0.1 0.0 MONTH TO DATE T 1.5 -1.5 0.0 SINCE MAR 1 25.0 21.0 4.0 5.2 SINCE JUL 1 41.6 65.4 -23.8 47.2 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 27 13 14 15 MONTH TO DATE 203 267 -64 195 SINCE MAR 1 1639 1903 -264 1595 SINCE JUL 1 5882 7373 -1491 6894 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 2 0 2 2 SINCE MAR 1 3 0 3 2 SINCE JAN 1 3 0 3 2 ................................................................... WIND (MPH) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 12.9 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. RAIN LIGHT RAIN LIGHT SNOW FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 700 PM LOWEST 72 100 PM AVERAGE 84 .......................................................... THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 90 2006 MINIMUM TEMPERATURE (F) 39 27 1903 1977 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 545 AM MDT SUNSET 900 PM MDT MAY 19 2026...........SUNRISE 544 AM MDT SUNSET 901 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$