WEATHER IN Rapid City
Climate tables. Data for Rapid City.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -32.8 (1950) | -10.7 | -4.3 | 2.2 | 24.4 (1987) |
| february | -35.0 (1996) | -10.0 | -3.3 | 3.4 | 23.9 (1995) |
| march | -29.4 (1996) | -5.2 | 1.9 | 9.0 | 28.3 (2007) |
| april | -17.2 (1975) | -0.4 | 6.6 | 13.7 | 33.9 (1989) |
| may | -7.8 (1950) | 5.4 | 12.3 | 19.2 | 36.7 (1969) |
| june | -0.6 (1951) | 10.9 | 18.1 | 25.3 | 42.8 (2002) |
| july | 3.9 (1959) | 14.7 | 22.4 | 30.2 | 43.9 (2006) |
| august | 3.3 (1966) | 13.4 | 21.6 | 29.7 | 41.7 (2007) |
| september | -7.8 (1985) | 8.0 | 16.3 | 24.5 | 40.0 (1960) |
| october | -18.9 (1991) | 0.9 | 8.4 | 15.8 | 35.6 (2011) |
| november | -28.3 (1959) | -5.6 | 1.4 | 8.5 | 28.3 (1999) |
| december | -34.4 (1990) | -10.1 | -3.6 | 2.9 | 23.9 (1965) |
| year | -35.0 (1996) | 1.0 | 8.3 | 15.7 | 43.9 (2006) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 8 | 0.3 (1914) | 45 (1944) | 32 (1944) |
| february | 13 | 0.5 (1905) | 51 (1953) | 22 (1953) |
| march | 23 | 0.5 (1981) | 85 (1902) | 51 (1945) |
| april | 53 | 0.5 (1987) | 164 (1941) | 81 (1997) |
| may | 88 | 2 (1936) | 234 (1962) | 82 (1965) |
| june | 73 | 11 (2002) | 193 (1968) | 96 (1963) |
| july | 58 | 3 (1890) | 245 (1905) | 64 (1944) |
| august | 40 | 3 (1943) | 144 (1906) | 66 (1982) |
| september | 31 | 0.5 (1888) | 129 (1913) | 54 (1966) |
| october | 36 | 0.0 (1921) | 142 (1998) | 63 (1982) |
| november | 12 | 0.0 (1903) | 82 (1922) | 26 (1944) |
| december | 9 | 0.0 (2001) | 25 (1909) | 23 (1996) |
| year | 414 | 191 (1936) | 734 (1962) | 96 (1963) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |