Aberdeen, SD
South Dakota · Records since 1893–2026
☁️ 90°F
Currently in Aberdeen
As of 7:00 PM CDT
Records for July 28
🔥 Record High
109°F
July 28, 1975
+24° from 85° normal❄ Record Low
40°F
July 28, 2013
-20° from 60° normal
🌞 Normal high: 85°F 🌑 Normal low: 60°F 1991–2020 normals
All-Time Records — Aberdeen
115°F
Hottest Day Ever
Jul 9, 1936
-46°F
Coldest Day Ever
Jan 12, 1912
7.62"
Wettest Day Ever
May 5, 2007
18.0"
Most Snow in One Day
Mar 28, 1900
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 109°F | July 28, 1975 |
| 2 | 105°F | July 28, 1933 |
| 3 | 102°F | July 28, 2006 |
| 4 | 102°F | July 28, 1987 |
| 5 | 101°F | July 28, 2021 |
| 6 | 100°F | July 28, 1941 |
| 7 | 98°F | July 28, 1989 |
| 8 | 98°F | July 28, 1988 |
| 9 | 98°F | July 28, 1960 |
| 10 | 98°F | July 28, 1959 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 40°F | July 28, 2013 |
| 2 | 44°F | July 28, 1981 |
| 3 | 46°F | July 28, 1944 |
| 4 | 46°F | July 28, 1904 |
| 5 | 47°F | July 28, 1973 |
Heat Wave Summary — Aberdeen
threshold: 94°F (90th percentile of historical Jun–Aug highs)4.2
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
4
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
112 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1893–202619
2026 so far
25
Avg/year 1970–2025
24
Avg/year (last 10 complete)
69
Most in a year (1936)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Aberdeen
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 2, 1936 – Jul 19, 1936 | 18 | 115°F (Jul 6) | 107°F | 70°F |
| 2 | Jul 20, 1941 – Jul 29, 1941 | 10 | 109°F (Jul 23) | 102°F | 68°F |
| 3 | Jul 17, 1899 – Jul 25, 1899 | 9 | 106°F (Jul 21) | 100°F | 60°F |
| 4 | Jul 13, 1932 – Jul 21, 1932 | 9 | 106°F (Jul 19) | 100°F | 67°F |
| 5 | Jul 31, 1930 – Aug 8, 1930 | 9 | 105°F (Aug 1) | 100°F | 64°F |
| 6 | May 27, 1934 – Jun 3, 1934 | 8 | 110°F (May 30) | 99°F | 64°F |
| 7 | Jul 17, 1901 – Jul 24, 1901 | 8 | 107°F (Jul 22) | 103°F | 68°F |
| 8 | Aug 17, 1976 – Aug 24, 1976 | 8 | 104°F (Aug 17) | 100°F | 71°F |
| 9 | Jul 17, 1940 – Jul 24, 1940 | 8 | 103°F (Jul 24) | 100°F | 68°F |
| 10 | Jul 5, 1930 – Jul 11, 1930 | 7 | 111°F (Jul 10) | 102°F | 67°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
32
2026 so far
above-normal nights
44.4
Avg / summer
1970–2020
64
Most in a summer
1983
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
12.28"
2026 YTD
Normal: 13.69"
-1.41"
3.68"
July so far
July normal: 3.09"
+0.59"
5.30"
Summer so far
Summer normal: 9.09"
-3.79"
2
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")