| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 30.0 | 13.1 | 59 | -37 | 0.4 |
| February | 33.3 | 15.3 | 70 | -29 | 0.4 |
| March | 44.3 | 23.7 | 72 | -12 | 0.6 |
| April | 53.2 | 29.2 | 79 | -5 | 0.9 |
| May | 63.6 | 37.9 | 110 | 14 | 1.3 |
| June | 75.4 | 46.5 | 96 | 12 | 0.7 |
| July | 84.5 | 54.4 | 98 | 28 | 0.5 |
| August | 81.9 | 52.6 | 97 | 23 | 0.6 |
| September | 71.1 | 43.5 | 93 | 5 | 0.8 |
| October | 56.4 | 32.5 | 83 | -10 | 0.8 |
| November | 40.9 | 21.3 | 70 | -21 | 0.4 |
| December | 29.8 | 12.9 | 59 | -30 | 0.3 |
| Entire year | 55.5 | 32.0 | 110 | -37 | 7.5 |
|
More Rock Springs Weather Records
1898–2024
|
||
|---|---|---|
| Highest daily low | 66 °F | August 6, 2012 |
| Lowest daily high | -19 °F | January 11, 1963 |
| Greatest daily range (Difference of high and low) |
65 °F | September 11, 1899 |
| Greatest difference in daily high over two conscutive days |
54 °F | Sep 7–8, 2020 |
| Most daily precipitation | 3.5 inches | June 12, 1899 |
| Most monthly precipitation | 5.5 inches | June 1899 |
| Most yearly precipitation | 14.5 inches | 1965 |
| Most yearly days with precipitation | 111 | 1937 |
| Earliest freeze | August 11 | 1899 |
| Earliest day ≥ 70 °F | February 18 | 1902 |
| Earliest day ≥ 80 °F | May 2 | 1985 |
| Earliest day ≥ 90 °F | May 14 | 1902 |
| Latest freeze | July 31 | 1899 |
| Latest day ≥ 70 °F | November 21 | 1902 |
| Latest day ≥ 80 °F | October 24 | 2007 |
| Latest day ≥ 90 °F | September 7 | 2022 |
| Most days in a year < 0 °F | 30 | 1937 |
| Most days in a year < 32 °F | 217 | 1970 |
| Most days in a year ≥ 80 °F | 99 | 1902 |
| Most days in a year ≥ 90 °F | 35 | 1940 |
| Most days in a year ≥ 100 °F | 1 | 1902 |
| Most days in a year ≥ 110 °F | 1 | 1902 |
|
Rock Springs Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 11 days | May 7–17, 1957 |
| Without precipitation | 67 days | Sep 9 – Nov 14, 1952 |
| High temperature at or below freezing |
50 days | Dec 22, 1948 – Feb 9, 1949 |
| High temperature ≥ 80 °F | 68 days | Jun 11 – Aug 17, 1933 |
| High temperature ≥ 90 °F | 16 days | Jul 10–25, 2003 |