Mount Rushmore Info - Weather

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Current Weather for Mount Rushmore
and Vicinity

Click for Rapid City, South Dakota Forecast

Month-by-Month Weather Summary:

January
February
March
April
May
June
July
August
September
October
November
December

 

January average high temperatures are in the 30s with lows typically in the teens. Below zero readings are not uncommon but usually the severe cold temperatures are short lived. Average snowfall is 5 15 inches, mostly of the light powdery type. The northern hills generally receive more snow than the southern part, making them ideal for winter recreation.

February temperatures and snowfall are very similar to Januarys but daytime averages sometimes get into the 40s with plenty of sunshine, adding to the warmth.

March is typically the snowiest month of the year with 15 25 inches in the northern Hills and 8 12 inches across the southern Black Hills. High temperatures now reach the 40s with lows in the 20s.

April can also be a snowy time in the hills where spring storms can dump several feet in one day. Daytime temperatures now reach the 50s with lows still in the 20s and 30s.

May precipitation mostly comes in the form of showers and late spring accounts for over a third of the Black Hills annual moisture. Daytime highs now reach the 50s, with 60 degree temperatures not uncommon, however overnight temperatures are still chilly, with morning frosts not uncommon.

June is thunderstorm season with afternoon occurrences likely, sometimes resulting in hail and possible flash flooding. Daytime temperatures are now into the 70's with lots of clear to partly cloudy days. Nighttime temperatures are still chilly with lows typically in the 40s to 50s.

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July brings warm temperatures and plenty of sunshine. Daytime temperatures climb into the 70's and 80s with even some 90s. Humidity levels are low and there is usually a nice breeze so even the hottest days are still comfortable. Nighttime temperatures are still cool so a sweater or jacket may be needed for outdoor activities. The sun is very intense in the higher elevation of the Black Hills so bring lots of sunscreen.

August is very similar to July with lots of sunny warm weather, low humidity, and cooling breezes. Afternoon thunderstorms are not uncommon with some rainfall, but usually result in only refreshing sprinkles to clean the air and keep the hillsides green.

September brings milder days and cooler nights with highs averaging in the 70s and lows dropping down into the 30s and 40's and the first overnight frosts. September is typically sunny and dry and a beautiful time to tour the changing of the aspen leaves through out the Hills.

October brings cooler daytime temperatures into the 50's and 60's and a chance of snowfall and some cold, blustery northwest winds, so bring a warm coat.

November marks the beginning of winter in the Black Hills. But despite cooler temperatures and more snow, the area still has many mild, sunny days, thanks to southern Chinook winds. Snowfall is usually less than 5 inches and even though cold Canada air can bring spells of subzero temperatures these cold temperatures are usually short lived.

 

December daytime temperatures are in the 30's, with nighttime readings cooling into the teens. Below zero temperatures are not uncommon. Snowfall is much like November's, but most snow is light, as a typical December only has 2 days when more than one inch of snow falls. The Black Hills' chances for a white Christmas (defined as having an inch or more of snow on the ground) is about 50 percent.

 


Black Hills Average Temperatures

Below is a summary of the typical temperatures you can anticipate for western South Dakota during the months shown. This will help you prepare for your visit in the Black Hills.

January - April
May - August
September - December

Average Temperatures for Towns in the Black Hills
January - April
City
January
Hi/Lo
February
Hi/Lo
March
Hi/Lo
April
Hi/Lo
Custer
36/12
39/14
45/20
58/32
Deadwood
36/13
37/15
44/21
54/29
Hill City
38/09
38/09
46/20
51/25
Hot Springs
39/12
44/16
52/24
63/33
Mount Rushmore
37/18
40/20
45/26
54/33
Rapid City
34/11
38/15
46/22
58/32
Spearfish
36/14
39/17
46/24
57/33
Sturgis
38/15
40/17
48/25
60/34
Sundance
33/12
36/15
45/22
56/31

Average Temperatures for Towns in the Black Hills
May - August
City
May
Hi/Lo
June
Hi/Lo
July
Hi/Lo
August
Hi/Lo
Custer
63/38
72/46
79/52
78/50
Deadwood
64/47
73/47
81/54
80/52
Hill City
65/38
73/43
79/48
78/47
Hot Springs
71/42
81/50
89/57
87/55
Mount Rushmore
64/42
74/51
81/58
79/57
Rapid City
68/42
78/52
86/58
85/56
Spearfish
67/44
76/51
84/58
83/56
Sturgis
70/49
79/53
87/59
86/57
Sundance
65/40
74/48
83/54
81/53

Average Temperatures for Towns in the Black Hills
September - December
City
September
Hi/Lo
October
Hi/Lo
November
Hi/Lo
December
Hi/Lo
Custer
68/40
58/30
45/22
37/12
Deadwood
68/42
57/32
44/21
36/14
Hill City
69/35
58/26
45/18
35/07
Hot Springs
77/44
67/34
49/23
40/14
Mount Rushmore
69/47
58/37
44/27
37/18
Rapid City
74/46
63/35
47/23
36/13
Spearfish
72/45
59/36
46/25
38/16
Sturgis
74/46
62/36
47/24
38/15
Sundance
70/43
59/33
43/22
33/13

SD Web Traveler, Inc.
P. O. Box 2541
Rapid City, SD 57709

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Last modified: February 28, 2008