Mount Rushmore May Weather

Averages and records for weather in Mount Rushmore, South Dakota in the month of May.
Typical Mount Rushmore May Weather
1991–2020
Average daily high 59.8 °F
Average daily low 41.6 °F
Average monthly precipitation 4.6 inches
Average monthly snow 2.9 inches
Daily chance of precipitation 43.9%
Daily chance of snow 2.6%
Mount Rushmore May Weather Records
1962–2024
Highest temperature 93 °F May 27, 1969
Lowest temperature 14 °F May 1, 1967
Highest daily low 69 °F May 28, 1969
Lowest daily high 26 °F May 3, 1967
Hottest average high temperature 72.1 °F 1985
Coldest average high temperature 50.7 °F 2019
Most daily precipitation 3.4 inches May 8, 1995
Most monthly precipitation 10.9 inches 1962
Most daily snow 16.3 inches May 21, 2019
Most monthly snow 28.8 inches 2019
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 54.4 36.5 79 14
May 2 54.7 36.9 80 20
May 3 55.1 37.2 84 19
May 4 55.6 37.6 83 21
May 5 56.0 37.9 84 23
May 6 56.3 38.2 80 28
May 7 56.6 38.5 82 23
May 8 56.9 38.8 84 25
May 9 57.1 39.1 82 15
May 10 57.4 39.4 81 21
May 11 57.7 39.7 80 22
May 12 58.1 40.1 80 24
May 13 58.5 40.5 86 18
May 14 59.0 40.9 88 26
May 15 59.5 41.3 90 30
May 16 60.0 41.8 84 29
May 17 60.4 42.1 84 30
May 18 60.8 42.5 86 28
May 19 61.1 42.8 89 28
May 20 61.3 43.1 84 24
May 21 61.6 43.4 85 26
May 22 62.0 43.7 85 29
May 23 62.5 44.1 91 27
May 24 62.9 44.4 82 25
May 25 63.3 44.8 83 30
May 26 63.8 45.3 87 29
May 27 64.2 45.7 93 25
May 28 64.5 46.0 92 30
May 29 64.8 46.3 89 24
May 30 65.1 46.6 85 32
May 31 65.4 46.9 84 27
Weather Station Details
Years Station Coordinates
1962–2024 Mt Rushmore Nmem location