CDUS45 KBOI 180931 CLIBOI CLIMATE REPORT NATIONAL WEATHER SERVICE BOISE ID 331 AM MDT MON MAY 18 2026 ................................... ...THE BOISE ID CLIMATE SUMMARY FOR MAY 17 2026... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1875 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 64 307 PM 94 2008 73 -9 55 MINIMUM 38 526 AM 30 1942 48 -10 50 AVERAGE 51 60 -9 53 PRECIPITATION (IN) YESTERDAY 0.00 0.85 1915 0.05 -0.05 0.32 MONTH TO DATE T 0.80 -0.80 0.75 SINCE OCT 1 10.90 9.30 1.60 10.66 SINCE JAN 1 6.55 5.77 0.78 6.25 SNOWFALL (IN) YESTERDAY 0.0 0.0 2007 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE JUL 1 1.8 17.6 -15.8 13.6 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 14 6 8 12 MONTH TO DATE 53 135 -82 101 SINCE MAR 1 899 1173 -274 1034 SINCE JUL 1 4144 5193 -1049 4833 COOLING YESTERDAY 0 2 -2 0 MONTH TO DATE 23 14 9 26 SINCE MAR 1 24 17 7 26 SINCE JAN 1 24 17 7 26 ................................................................... WIND (MPH) HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 16.6 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 70 700 AM LOWEST 21 500 PM AVERAGE 46 .......................................................... THE BOISE ID CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 95 2009 MINIMUM TEMPERATURE (F) 48 30 1971 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 617 AM MDT SUNSET 906 PM MDT MAY 19 2026...........SUNRISE 616 AM MDT SUNSET 907 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$