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Rapid City May Weather

Averages and records for weather in Rapid City, South Dakota in the month of May.
Typical Rapid City May Weather
1991–2020
Average daily high 67.0 °F
Average daily low 41.9 °F
Average monthly precipitation 3.5 inches
Average monthly snow 1.5 inches
Rapid City May Weather Records
1948–2022
Highest temperature 98 °F May 27, 1969
Lowest temperature 18 °F May 1, 1950
Highest daily low 65 °F May 18, 1948
Lowest daily high 32 °F May 1, 1954
Hottest average temperature 7.3 °F
above average
1958
Coldest average temperature -7.1 °F
below average
2019
Most daily precipitation 3.2 inches May 14, 1965
Most monthly precipitation 8.2 inches 1996
Most daily snow 11.0 inches May 2, 2008
Most monthly snow 13.0 inches 2015
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 61.9 36.4 88 18
May 2 62.2 36.7 86 21
May 3 62.6 37.0 93 19
May 4 63.1 37.4 91 25
May 5 63.5 37.8 93 26
May 6 63.8 38.2 88 26
May 7 64.1 38.6 90 25
May 8 64.3 39.0 88 21
May 9 64.5 39.3 86 25
May 10 64.8 39.7 90 24
May 11 65.1 40.0 87 23
May 12 65.5 40.4 90 22
May 13 65.8 40.8 92 26
May 14 66.3 41.2 89 25
May 15 66.7 41.5 90 30
May 16 67.2 42.0 91 24
May 17 67.5 42.4 93 31
May 18 67.8 42.8 92 33
May 19 68.1 43.1 94 31
May 20 68.3 43.5 92 25
May 21 68.6 43.8 92 28
May 22 69.0 44.2 91 24
May 23 69.5 44.5 87 24
May 24 69.9 44.9 89 23
May 25 70.3 45.3 86 30
May 26 70.8 45.6 95 30
May 27 71.2 46.0 98 34
May 28 71.5 46.4 89 32
May 29 71.7 46.7 94 35
May 30 72.1 47.0 91 34
May 31 72.3 47.3 89 33
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location