Bismarck, ND
North Dakota · Records since 1874–2026
☁️ 89°F
Currently in Bismarck
As of 7:00 PM CDT
Records for July 28
🔥 Record High
107°F
July 28, 1917
+21° from 86° normal❄ Record Low
41°F
July 28, 1976
-18° from 59° normal
🌞 Normal high: 86°F 🌑 Normal low: 59°F 1991–2020 normals
All-Time Records — Bismarck
114°F
Hottest Day Ever
Jul 6, 1936
-45°F
Coldest Day Ever
Feb 16, 1936
4.63"
Wettest Day Ever
Aug 21, 1998
17.3"
Most Snow in One Day
Apr 14, 2013
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 107°F | July 28, 1917 |
| 2 | 106°F | July 28, 1999 |
| 3 | 106°F | July 28, 1975 |
| 4 | 105°F | July 28, 1959 |
| 5 | 104°F | July 28, 1988 |
| 6 | 102°F | July 28, 1933 |
| 7 | 100°F | July 28, 1947 |
| 8 | 100°F | July 28, 1941 |
| 9 | 99°F | July 28, 1897 |
| 10 | 97°F | July 28, 2006 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 41°F | July 28, 1976 |
| 2 | 44°F | July 28, 2014 |
| 3 | 44°F | July 28, 2013 |
| 4 | 45°F | July 28, 1971 |
| 5 | 45°F | July 28, 1892 |
Heat Wave Summary — Bismarck
threshold: 93°F (90th percentile of historical Jun–Aug highs)4.1
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
2
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
116 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1875–202622
2026 so far
20
Avg/year 1970–2025
25
Avg/year (last 10 complete)
53
Most in a year (1936)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Bismarck
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 4, 1936 – Jul 19, 1936 | 16 | 114°F (Jul 6) | 104°F | 73°F |
| 2 | Jul 15, 2021 – Jul 26, 2021 | 12 | 105°F (Jul 22) | 99°F | 66°F |
| 3 | Aug 11, 2003 – Aug 20, 2003 | 10 | 106°F (Aug 17) | 99°F | 66°F |
| 4 | Jun 17, 1988 – Jun 24, 1988 | 8 | 105°F (Jun 21) | 100°F | 63°F |
| 5 | Aug 21, 1969 – Aug 28, 1969 | 8 | 101°F (Aug 28) | 96°F | 65°F |
| 6 | Jul 5, 1974 – Jul 12, 1974 | 8 | 100°F (Jul 7) | 96°F | 60°F |
| 7 | Jul 25, 1988 – Jul 31, 1988 | 7 | 106°F (Jul 27) | 99°F | 58°F |
| 8 | Jul 10, 2006 – Jul 16, 2006 | 7 | 106°F (Jul 16) | 101°F | 60°F |
| 9 | Aug 24, 1991 – Aug 30, 1991 | 7 | 103°F (Aug 27) | 98°F | 63°F |
| 10 | Aug 17, 1976 – Aug 23, 1976 | 7 | 102°F (Aug 18) | 98°F | 61°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
37
2026 so far
above-normal nights
41.7
Avg / summer
1970–2020
73
Most in a summer
2021
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
7.40"
2026 YTD
Normal: 11.74"
-4.34"
0.64"
July so far
July normal: 3.07"
-2.43"
2.75"
Summer so far
Summer normal: 8.93"
-6.18"
0
2026 heavy rain days
Days with ≥ 1.0"
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")