Mount Rushmore Weather Records

Mount Rushmore, South Dakota weather data and records from 1962–2022 based on data compiled by the NOAA.

All data displayed in U.S. customary units.

All data displayed in metric units.

All-Time Recorded High

The highest temperature ever recorded in Mount Rushmore, South Dakota was 100.0 °F37.8 °C which occurred on July 30, 2006.

Highest Temperatures: All-Time By Year

All-Time Recorded Low

The lowest temperature ever recorded in Mount Rushmore, South Dakota was -38.0 °F-38.9 °C which occurred on January 19, 1963.

Lowest Temperatures: All-Time By Year

Mount Rushmore Weather by Month

Averages based on the years 1991–2020

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
☀️ Average high (°F°C)	36.82.7	36.42.4	44.26.8	50.410.2	59.815.4	71.221.8	78.725.9	77.425.2	69.220.7	55.513.0	44.77.0	36.72.6	55.212.9
🌙 Average low (°F°C)	18.9-7.3	18.4-7.5	25.5-3.6	32.00.0	41.65.3	51.911.1	58.914.9	57.914.4	49.69.8	37.22.9	27.2-2.7	19.8-6.8	36.82.6
☀️ Record high (°F°C)	70.021.1	68.020.0	78.125.6	84.929.4	93.033.9	99.037.2	100.037.8	99.037.2	97.036.1	86.030.0	75.023.9	68.020.0	100.037.8
🌙 Record low (°F°C)	-38.0-38.9	-29.0-33.9	-16.1-26.7	1.0-17.2	14.0-10.0	27.0-2.8	39.94.4	33.10.6	19.0-7.2	-4.0-20.0	-11.9-24.4	-31.0-35.0	-38.0-38.9
💧 Average precipitation (inchescm)	0.51.2	0.71.9	1.33.2	2.76.8	4.611.8	3.69.1	3.69.1	2.25.6	1.84.5	1.74.3	0.61.6	0.51.3	23.659.9
💧 Daily % chance precipitation	16.6	21.6	21.7	32.7	44.0	44.8	39.9	34.7	25.8	23.1	15.0	15.3	28.0
❄️ Average snow (inchescm)	6.817.4	8.822.3	10.526.7	11.830.1	2.97.3	0.20.6	0.00.0	0.00.0	0.82.1	4.411.3	5.714.5	6.616.8	59.6151.5
❄️ Daily % chance snow	13.9	17.1	12.6	11.9	2.6	0.2	0.0	0.0	0.7	5.4	9.6	12.4	7.3

More Mount Rushmore Weather Records 1962–2022
Highest daily low	79.0 °F26.1 °C	July 19, 2011
Lowest daily high	-20.9 °F-29.4 °C	February 3, 1989
Most daily precipitation	6.3 inches16.0 cm	June 10, 1972
Most monthly precipitation	10.9 inches27.7 cm	May 1962
Most yearly precipitation	39.0 inches99.1 cm	2019
Earliest freeze	September 4	1962
Latest freeze	June 16	1981
Earliest snow	September 7	2020
Latest snow	June 12	1999
Most daily snow	30.0 inches76.2 cm	April 19, 2000
Most monthly snow	41.0 inches104.1 cm	April 1984
Most yearly snow	116.3 inches295.4 cm	1971

Mount Rushmore Weather Streaks Most consecutive days...
With precipitation	12 days	Jul 31 – Aug 11, 2013
Without precipitation	65 days	Oct 19 – Dec 22, 1987
With snow	6 days	Feb 16–21, 1962
High temperature ≤ 32 °F0 °C freezing temperatures	20 days	Feb 15 – Mar 6, 2019
High temperature ≥ 80 °F27 °C	28 days	Jul 4–31, 1974
High temperature ≥ 90 °F32 °C	8 days	Jul 25 – Aug 1, 1987

Mount Rushmore Weather by Year

Weather Station Details

Years	Station	Coordinates
1962–2022	Mt Rushmore Nmem	location