CDUS45 KRIW 150727 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 127 AM MDT WED APR 15 2026 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 14 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 40 1:40 PM 57 2024 40 0 42 MINIMUM 28 11:59 PM -8 2014 16 12 10 2020 AVERAGE 34 28 6 26 PRECIPITATION (IN) YESTERDAY 0.00 0.52 2002 0.09 -0.09 0.00 MONTH TO DATE 0.75 1.12 -0.37 0.71 SINCE MAR 1 1.86 3.02 -1.16 1.20 SINCE JAN 1 5.21 6.52 -1.31 4.90 DEGREE DAYS HEATING YESTERDAY 31 37 -6 39 MONTH TO DATE 422 538 -116 529 SINCE MAR 1 1481 1896 -415 673 SINCE JUL 1 8451 10100 -1649 7593 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 2.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 82 4:00 AM LOWEST 56 1:00 PM AVERAGE 69 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 40 54 2025 MINIMUM TEMPERATURE (F) 16 -5 1999 2001 SUNRISE AND SUNSET APRIL 15 2026.........SUNRISE 6:37 AM MDT SUNSET 8:07 PM MDT APRIL 16 2026.........SUNRISE 6:36 AM MDT SUNSET 8:08 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$