| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 29.8 | 4.8 | 50 | -60 | 2.3 |
| February | 34.5 | 6.1 | 56 | -66 | 2.3 |
| March | 44.1 | 14.3 | 65 | -43 | 2.2 |
| April | 51.1 | 23.1 | 76 | -26 | 2.4 |
| May | 60.3 | 30.5 | 88 | 0 | 2.4 |
| June | 69.1 | 36.0 | 93 | 18 | 2.1 |
| July | 79.5 | 40.2 | 97 | 20 | 1.3 |
| August | 78.5 | 38.0 | 96 | 15 | 1.0 |
| September | 67.9 | 31.5 | 91 | -9 | 1.3 |
| October | 51.9 | 24.3 | 89 | -22 | 1.8 |
| November | 37.4 | 13.3 | 65 | -38 | 2.4 |
| December | 28.6 | 4.6 | 54 | -59 | 2.9 |
| Entire year | 53.2 | 22.4 | 97 | -66 | 24.4 |
|
More West Yellowstone Weather Records
1924–2024
|
||
|---|---|---|
| Highest daily low | 58 °F | June 26, 1988 |
| Lowest daily high | -16 °F | December 21, 1990 |
| Greatest daily range (Difference of high and low) |
76 °F | March 2, 1928 |
| Greatest difference in daily high over two conscutive days |
38 °F | Jun 7–8, 1950 |
| Most daily precipitation | 2.7 inches | June 17, 1925 |
| Most monthly precipitation | 7.1 inches | February 2019 |
| Most yearly precipitation | 30.4 inches | 2014 |
| Most yearly days with precipitation | 172 | 1984 |
| Earliest freeze | August 1 | 2002 |
| Earliest day ≥ 70 °F | April 10 | 2012 |
| Earliest day ≥ 80 °F | May 6 | 1992 |
| Earliest day ≥ 90 °F | June 18 | 1940 |
| Latest freeze | July 31 | 1995 |
| Latest day ≥ 70 °F | October 22 | 2003 |
| Latest day ≥ 80 °F | October 11 | 1934 |
| Latest day ≥ 90 °F | September 7 | 2022 |
| Most days in a year < 0 °F | 79 | 1985 |
| Most days in a year < 32 °F | 304 | 1935 |
| Most days in a year ≥ 80 °F | 72 | 1940 |
| Most days in a year ≥ 90 °F | 14 | 2003 |
|
West Yellowstone Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 18 days | Nov 16 – Dec 3, 1985 |
| Without precipitation | 63 days | May 27 – Jul 28, 2021 |
| High temperature at or below freezing |
94 days | Nov 15, 1948 – Feb 16, 1949 |
| High temperature ≥ 80 °F | 32 days | Jul 9 – Aug 9, 1934 |
| High temperature ≥ 90 °F | 6 days | Jul 18–23, 2007 |