Missoula, MT
Montana · Records since 1893–2026
Records for August 11
🔥 Record High
August 11, 2018
+14° from 86° normal❄ Record Low
August 11, 1895
-12° from 51° normalAll-Time Records — Missoula
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 100°F | August 11, 2018 |
| 2 | 100°F | August 11, 1996 |
| 3 | 99°F | August 11, 1971 |
| 4 | 99°F | August 11, 1906 |
| 5 | 98°F | August 11, 2022 |
| 6 | 98°F | August 11, 2014 |
| 7 | 98°F | August 11, 1940 |
| 8 | 96°F | August 11, 2015 |
| 9 | 96°F | August 11, 1960 |
| 10 | 96°F | August 11, 1933 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 39°F | August 11, 1895 |
| 2 | 39°F | August 11, 1893 |
| 3 | 40°F | August 11, 1962 |
| 4 | 40°F | August 11, 1901 |
| 5 | 42°F | August 11, 2007 |
Heat Wave Summary — Missoula
threshold: 94°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date151 of 222 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1893–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Missoula
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 8, 2024 – Jul 24, 2024 | 17 | 102°F (Jul 24) | 98°F | 57°F |
| 2 | Jul 11, 1960 – Jul 22, 1960 | 12 | 105°F (Jul 19) | 99°F | 53°F |
| 3 | Aug 10, 1967 – Aug 20, 1967 | 11 | 99°F (Aug 17) | 97°F | 51°F |
| 4 | Jun 27, 2021 – Jul 6, 2021 | 10 | 102°F (Jun 30) | 98°F | 57°F |
| 5 | Jul 15, 2003 – Jul 23, 2003 | 9 | 103°F (Jul 23) | 99°F | 56°F |
| 6 | Jul 21, 2006 – Jul 29, 2006 | 9 | 102°F (Jul 22) | 98°F | 59°F |
| 7 | Jun 26, 2015 – Jul 4, 2015 | 9 | 102°F (Jun 28) | 97°F | 60°F |
| 8 | Jul 21, 1994 – Jul 29, 1994 | 9 | 101°F (Jul 26) | 99°F | 58°F |
| 9 | Jul 16, 1936 – Jul 23, 1936 | 8 | 105°F (Jul 22) | 101°F | 62°F |
| 10 | Jul 11, 2007 – Jul 18, 2007 | 8 | 103°F (Jul 14) | 100°F | 60°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")
Month in Review — July 2026
Average temperature · July 2026
16th-warmest month on record
15th-warmest July of 123 on record
+3.0° vs. 68.9° average (1991–2020)Longest 90°F Streak in July
6 consecutive days with highs of at least 90°F (Jul 21–26, 2026, peaking at 100°F)
The longest July streak since 2024 (2 years). The July record is 18 days, set in 2007.
Average July Temperature by Year
1893–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2007 | 78.2°F |
| 2 | 2021 | 74.9°F |
| 3 | 1985 | 74.8°F |
| 4 | 1936 | 74.5°F |
| 5 | 2017 | 73.6°F |
| 6 | 2006 | 73.2°F |
| 7 | 2013 | 73.0°F |
| 8 | 2022 | 72.9°F |
| 9 | 2023 | 72.9°F |
| 10 | 2024 | 72.8°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2007 | 78.2°F |
| 2 | July 2021 | 74.9°F |
| 3 | July 1985 | 74.8°F |
| 4 | July 1936 | 74.5°F |
| 5 | August 2022 | 73.8°F |
| 6 | July 2017 | 73.6°F |
| 7 | July 2006 | 73.2°F |
| 8 | July 2013 | 73.0°F |
| 9 | July 2022 | 72.9°F |
| 10 | July 2023 | 72.9°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Missoula, MT | 71.9°F | 15th of 123 |
| Kalispell, MT | 68.0°F | 23rd of 128 |
| Helena, MT | 73.5°F | 10th of 147 |
| Dworshak, ID | 75.9°F | 13th of 121 |