| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 28.2 | 1.1 | 55 | -45 | 2.2 | 35.3 |
| February | 31.3 | 2.3 | 62 | -49 | 1.9 | 30.0 |
| March | 38.7 | 10.0 | 63 | -41 | 2.2 | 29.6 |
| April | 45.5 | 19.5 | 73 | -28 | 2.3 | 20.1 |
| May | 54.9 | 28.7 | 82 | 3 | 2.6 | 4.8 |
| June | 65.3 | 34.7 | 89 | 16 | 2.4 | 0.5 |
| July | 75.8 | 39.2 | 94 | 21 | 1.2 | 0.0 |
| August | 74.8 | 36.8 | 98 | 14 | 1.4 | 0.0 |
| September | 64.9 | 30.0 | 87 | -2 | 1.6 | 1.1 |
| October | 49.9 | 22.8 | 79 | -27 | 2.2 | 9.0 |
| November | 35.4 | 9.7 | 63 | -32 | 2.2 | 26.1 |
| December | 26.7 | 0.9 | 58 | -47 | 2.7 | 43.7 |
| Entire year | 49.4 | 19.6 | 98 | -49 | 25.1 | 199.4 |
|
More Yellowstone National Park Weather Records
1904–2024
|
||
|---|---|---|
| Highest daily low | 73 °F | August 23, 1913 |
| Lowest daily high | -12 °F | December 22, 1990 |
| Greatest daily range (Difference of high and low) |
72 °F | February 11, 1981 |
| Greatest difference in daily high over two conscutive days |
37 °F | Sep 12–13, 2016 |
| Most daily precipitation | 3.0 inches | June 5, 2001 |
| Most monthly precipitation | 8.2 inches | October 2016 |
| Most yearly precipitation | 33.4 inches | 1995 |
| Most yearly days with precipitation | 174 | 2011 |
| Earliest snow in season | September 6 | 2000 |
| Latest snow in season | June 23 | 1993 |
| Most daily snow | 30.0 inches | January 15, 1913 |
| Most monthly snow | 113.1 inches | December 1996 |
| Most yearly snow | 355.0 inches | 1996 |
| Most snow in a winter | 306.8 inches | 1985–1986 |
| Greatest snow accumulation | 77.0 inches | February 22, 1986 |
| Earliest freeze | August 1 | 2015 |
| Earliest day ≥ 70 °F | April 24 | 2012 |
| Earliest day ≥ 80 °F | May 25 | 1913 |
| Earliest day ≥ 90 °F | July 7 | 1984 |
| Latest freeze | July 31 | 2018 |
| Latest day ≥ 70 °F | October 23 | 2003 |
| Latest day ≥ 80 °F | September 28 | 1910 |
| Latest day ≥ 90 °F | August 30 | 1905 |
| Most days in a year < 0 °F | 78 | 1997 |
| Most days in a year < 32 °F | 288 | 1979 |
| Most days in a year ≥ 80 °F | 54 | 2022 |
| Most days in a year ≥ 90 °F | 11 | 1905 |
|
Yellowstone National Park Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 22 days | Dec 13, 2008 – Jan 3, 2009 |
| Without precipitation | 79 days | Jun 18 – Sep 4, 1911 |
| With snow | 18 days | Dec 13–30, 2008 |
| High temperature at or below freezing |
55 days | Dec 28, 1935 – Feb 20, 1936 |
| High temperature ≥ 80 °F | 22 days | Jul 7–28, 2021 |
| High temperature ≥ 90 °F | 5 days | Jul 12–16, 2002 |
| Years | Station | Coordinates |
|---|---|---|
| 1904–2024 | Old Faithful | location |