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Fairly Typical Summer Weather

Strong to severe storms may produce damaging winds, large hail, and locally heavy rain across portions of the Midwest. Critical fire weather threats continue in the Northern Rockies, including a threat of isolated dry thunderstorms in Wyoming. High Heat indices are developing in the South and Central Plains, including Kansas City; and excessive heat is forecast in the Phoenix Metro area. Read More >


May of 2019 rewrote the record books across western South Dakota and northeastern Wyoming. Continuing the cold and wet trend of early spring, May was characterized by repeated bouts with well below normal temperatures and heavy snow, including snow on some days in late May for the first time on record. Rapid snowmelt and heavy rain late in the month also contributed to widespread flooding issues, including record crests on portions of the Cheyenne and White rivers in western South Dakota.

Here, we provide statistics on the monthly average temperatures and precipitation totals for downtown Rapid City and several cooperative observer sites across the area, including where May 2019 ranks in the record books. On the other tabs, we provide lists of all daily temperature and precipitation records set at these sites throughout May and a list of the preliminary record river crests during the month.


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