


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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309 CDUS45 KRIW 060728 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 128 AM MDT TUE MAY 06 2025 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 5 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM MM MM 64 2016 47 MM 48 MINIMUM MM MM 3 2010 23 MM 30 AVERAGE MM 35 MM 39 PRECIPITATION (IN) YESTERDAY 0.00 0.28 2012 0.06 -0.06 0.24 MONTH TO DATE 0.00 0.31 -0.31 0.59 SINCE MAR 1 3.08 4.49 -1.41 5.92 SINCE JAN 1 6.78 7.99 -1.21 10.39 DEGREE DAYS HEATING YESTERDAY MM 30 MM 26 MONTH TO DATE 104 154 -50 182 SINCE MAR 1 1299 2600 -1301 2334 SINCE JUL 1 8219 10804 -2585 9808 COOLING YESTERDAY MM 0 MM 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 MM HIGHEST WIND DIRECTION MM HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED MM SKY COVER POSSIBLE SUNSHINE MM 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 LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 63 2004 2017 MINIMUM TEMPERATURE (F) 23 8 1999 SUNRISE AND SUNSET MAY 6 2025...........SUNRISE 6:05 AM MDT SUNSET 8:33 PM MDT MAY 7 2025...........SUNRISE 6:03 AM MDT SUNSET 8:34 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$