CDUS45 KTFX 180744 CLILWT CLIMATE REPORT NATIONAL WEATHER SERVICE GREAT FALLS MT 144 AM MDT MON MAY 18 2026 ................................... ...THE LEWISTOWN MT CLIMATE SUMMARY FOR MAY 17 2026... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1896 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM MM MM 87 1948 63 MM 63 MINIMUM MM MM 27 1930 38 MM 37 AVERAGE MM 50 MM 50 PRECIPITATION (IN) YESTERDAY MM 1.54 1944 0.10 MM 0.27 MONTH TO DATE 0.30 1.31 -1.01 2.34 SINCE OCT 1 7.86 7.41 0.45 6.51 SINCE JAN 1 5.27 4.96 0.31 5.14 SNOWFALL (IN) YESTERDAY MM SNOW DEPTH MM DEGREE DAYS HEATING YESTERDAY MM 14 MM 15 MONTH TO DATE 190 294 -104 231 SINCE MAR 1 1738 2014 -276 1796 SINCE JUL 1 6425 7780 -1355 7358 COOLING YESTERDAY MM 0 MM 0 MONTH TO DATE 0 0 0 2 SINCE MAR 1 0 0 0 2 SINCE JAN 1 0 0 0 2 ................................................................... WIND (MPH) HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED MM SKY COVER AVERAGE SKY COVER MM WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST MM LOWEST MM AVERAGE MM .......................................................... THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 64 86 1937 MINIMUM TEMPERATURE (F) 38 23 1929 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 539 AM MDT SUNSET 851 PM MDT MAY 19 2026...........SUNRISE 538 AM MDT SUNSET 852 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$