WEATHER IN Rock Springs
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -37 (1963) | 13.6 | 21.5 | 29.5 | 55 (1969) |
| february | -29 (1989) | 15.7 | 24.3 | 32.9 | 60 (1977) |
| march | -12 (1969) | 24.1 | 34.0 | 43.9 | 72 (2012) |
| april | 2 (1975) | 29.7 | 41.2 | 52.8 | 79 (1989) |
| may | 14 (1967) | 38.4 | 50.8 | 63.2 | 90 (2002) |
| june | 26 (1951) | 47.0 | 61.0 | 75.0 | 96 (1954) |
| july | 35 (1968) | 54.8 | 69.4 | 84.1 | 98 (2002) |
| august | 33 (1962) | 53.1 | 67.3 | 81.5 | 96 (2003) |
| september | 5 (1965) | 43.9 | 57.3 | 70.7 | 89 (1950) |
| october | 3 (1991) | 32.9 | 44.5 | 56.0 | 84 (2007) |
| november | -13 (1976) | 21.8 | 31.2 | 40.5 | 66 (1977) |
| december | -29 (1990) | 13.4 | 21.4 | 29.5 | 57 (1995) |
| year | -37 (1963) | 31.6 | 43.4 | 55.2 | 98 (2002) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 0.38 | 0.00 (1913) | 1.54 (1978) | 0.83 (1996) |
| february | 0.37 | 0.00 (1914) | 1.85 (1922) | 0.58 (2000) |
| march | 0.58 | 0.00 (1917) | 1.97 (1977) | 1.66 (1962) |
| april | 0.91 | 0.00 (1926) | 2.74 (1999) | 1.95 (1971) |
| may | 1.27 | 0.00 (1934) | 3.67 (1995) | 1.70 (1971) |
| june | 0.70 | 0.00 (1916) | 4.34 (1947) | 1.64 (1970) |
| july | 0.47 | 0.00 (1923) | 3.67 (1973) | 1.42 (1991) |
| august | 0.56 | 0.00 (1931) | 3.90 (1930) | 1.17 (2007) |
| september | 0.79 | 0.00 (1928) | 3.67 (1965) | 2.00 (1973) |
| october | 0.81 | 0.00 (1915) | 2.81 (1949) | 0.96 (1994) |
| november | 0.40 | 0.00 (1916) | 1.60 (1983) | 0.89 (1978) |
| december | 0.31 | 0.00 (1908) | 1.78 (1975) | 0.94 (1975) |
| year | 8.56 | 2.99 (2012) | 14.54 (1965) | 2.00 (1973) |
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 |