CDUS45 KRIW 230726 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 126 AM MDT SUN AUG 23 2026 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 22 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 74 1:42 PM 83 2009 69 5 79 MINIMUM 50 6:15 AM 27 2008 36 14 40 AVERAGE 62 53 9 60 PRECIPITATION (IN) YESTERDAY 0.08 0.34 2004 0.04 0.04 0.00 MONTH TO DATE 2.11 0.93 1.18 0.09 SINCE JUN 1 5.07 4.82 0.25 1.48 SINCE JAN 1 13.31 14.85 -1.54 10.71 DEGREE DAYS HEATING YESTERDAY 3 12 -9 5 MONTH TO DATE 165 222 -57 186 SINCE JUN 1 795 1056 -261 859 SINCE JUL 1 281 518 -237 417 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 2 0 2 1 SINCE JAN 1 2 0 2 1 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 1.5 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 93 10:00 PM LOWEST 38 2:00 PM AVERAGE 66 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 80 2025 MINIMUM TEMPERATURE (F) 36 27 2015 SUNRISE AND SUNSET AUGUST 23 2026........SUNRISE 6:34 AM MDT SUNSET 8:14 PM MDT AUGUST 24 2026........SUNRISE 6:35 AM MDT SUNSET 8:12 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$