Grand Forks, ND
North Dakota · Records since 1941–2026
Records for August 11
🔥 Record High
August 11, 1958
+15° from 81° normal❄ Record Low
August 11, 1977
-16° from 56° normalAll-Time Records — Grand Forks
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 96°F | August 11, 1958 |
| 2 | 95°F | August 11, 2000 |
| 3 | 95°F | August 11, 1969 |
| 4 | 93°F | August 11, 2018 |
| 5 | 93°F | August 11, 1988 |
| 6 | 93°F | August 11, 1978 |
| 7 | 93°F | August 11, 1959 |
| 8 | 93°F | August 11, 1949 |
| 9 | 92°F | August 11, 1998 |
| 10 | 92°F | August 11, 1965 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 40°F | August 11, 1977 |
| 2 | 42°F | August 11, 1986 |
| 3 | 42°F | August 11, 1982 |
| 4 | 43°F | August 11, 1990 |
| 5 | 43°F | August 11, 1979 |
Heat Wave Summary — Grand Forks
threshold: 90°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date124 of 222 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1941–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Grand Forks
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 21, 1969 – Aug 29, 1969 | 9 | 94°F (Aug 26) | 91°F | 60°F |
| 2 | Aug 18, 1976 – Aug 24, 1976 | 7 | 100°F (Aug 20) | 96°F | 63°F |
| 3 | Jun 14, 1995 – Jun 20, 1995 | 7 | 100°F (Jun 17) | 95°F | 70°F |
| 4 | Jul 16, 1955 – Jul 21, 1955 | 6 | 98°F (Jul 21) | 93°F | 64°F |
| 5 | Jun 4, 1970 – Jun 9, 1970 | 6 | 98°F (Jun 6) | 93°F | 60°F |
| 6 | Jul 11, 2006 – Jul 16, 2006 | 6 | 98°F (Jul 16) | 94°F | 60°F |
| 7 | Jul 20, 1963 – Jul 25, 1963 | 6 | 97°F (Jul 25) | 92°F | 64°F |
| 8 | Jun 2, 1988 – Jun 7, 1988 | 6 | 96°F (Jun 7) | 94°F | 60°F |
| 9 | Aug 14, 2003 – Aug 19, 2003 | 6 | 95°F (Aug 17) | 93°F | 62°F |
| 10 | Jun 30, 2021 – Jul 5, 2021 | 6 | 94°F (Jul 3) | 92°F | 62°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
2nd-warmest month on record
2nd-warmest July of 86 on record
+5.3° vs. 69.4° average (1991–2020)Longest 90°F Streak in July
4 consecutive days with highs of at least 90°F (Jul 11–14, 2026, peaking at 98°F)
The longest July streak since 2021 (5 years). The July record is 6 days, set in 1955.
Average July Temperature by Year
1941–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2012 | 74.8°F |
| 2 | 2026 | 74.7°F |
| 3 | 1989 | 73.9°F |
| 4 | 1957 | 73.7°F |
| 5 | 2024 | 73.2°F |
| 6 | 1955 | 73.1°F |
| 7 | 2021 | 73.0°F |
| 8 | 1964 | 72.8°F |
| 9 | 2020 | 72.7°F |
| 10 | 1983 | 72.5°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2012 | 74.8°F |
| 2 | July 2026 | 74.7°F |
| 3 | July 1989 | 73.9°F |
| 4 | July 1957 | 73.7°F |
| 5 | July 2024 | 73.2°F |
| 6 | July 1955 | 73.1°F |
| 7 | August 1961 | 73.0°F |
| 8 | August 1983 | 73.0°F |
| 9 | July 2021 | 73.0°F |
| 10 | July 1964 | 72.8°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Grand Forks, ND | 74.7°F | 2nd of 86 |
| Fargo, ND | 76.3°F | 3rd of 146 |
| Sisseton, SD | 74.5°F | 23rd of 90 |
| Brainerd, MN | 74.0°F | 6th of 104 |
| International Falls, MN | 69.5°F | 11th of 96 |