Yankton Weather in July
Average highs run from 86°F on July 1 to 87°F on July 31, and lows from 63°F to 64°F. Normal precipitation for the month is 3.46 in over about 8 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 87°F
- Average low
- 64°F
- Precipitation
- 3.46 in
- Record high
- 116°FJul 18, 1936
- Record low
- 45°FJul 10, 1945
- Chance of a freeze
- 0%
- Days of 90°F or more
- 11.8
- Daylight
- 15 h 17 min to 14 h 31 min
- Cloud cover
- 47%
- Humidity
- 62%
- Dew point
- 61°F
- Wind
- 9.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 86°F | 63°F | 95°F 1934 | 47°F 1945 | 31% | 0% |
| Jul 2 | 86°F | 63°F | 98°F 1937 | 46°F 1945 | 30% | 0% |
| Jul 3 | 86°F | 63°F | 98°F 1936 | 48°F 1945 | 30% | 0% |
| Jul 4 | 87°F | 63°F | 102°F 1936 | 57°F 1940 | 30% | 0% |
| Jul 5 | 87°F | 63°F | 113°F 1936 | 54°F 2023 | 29% | 0% |
| Jul 6 | 87°F | 63°F | 112°F 1936 | 48°F 2023 | 29% | 0% |
| Jul 7 | 87°F | 63°F | 103°F 1936 | 51°F 1934 | 29% | 0% |
| Jul 8 | 87°F | 64°F | 101°F 1936 | 52°F 2023 | 28% | 0% |
| Jul 9 | 87°F | 64°F | 101°F 1936 | 51°F 2023 | 28% | 0% |
| Jul 10 | 87°F | 64°F | 107°F 1936 | 45°F 1945 | 28% | 0% |
| Jul 11 | 87°F | 64°F | 110°F 1939 | 51°F 1945 | 28% | 0% |
| Jul 12 | 87°F | 64°F | 105°F 1936 | 54°F 1941 | 27% | 0% |
| Jul 13 | 87°F | 64°F | 102°F 1936 | 54°F 1941 | 27% | 0% |
| Jul 14 | 87°F | 64°F | 105°F 1936 | 54°F 1945 | 27% | 0% |
| Jul 15 | 87°F | 64°F | 102°F 1936 | 54°F 1945 | 27% | 0% |
| Jul 16 | 87°F | 64°F | 106°F 1936 | 56°F 1940 | 27% | 0% |
| Jul 17 | 88°F | 64°F | 109°F 1936 | 51°F 2009 | 27% | 0% |
| Jul 18 | 88°F | 64°F | 116°F 1936 | 50°F 2009 | 27% | 0% |
| Jul 19 | 88°F | 64°F | 106°F 1934 | 50°F 1947 | 27% | 0% |
| Jul 20 | 88°F | 64°F | 111°F 1934 | 53°F 1944 | 27% | 0% |
| Jul 21 | 88°F | 64°F | 110°F 1934 | 50°F 1947 | 27% | 0% |
| Jul 22 | 88°F | 64°F | 107°F 1934 | 50°F 1947 | 27% | 0% |
| Jul 23 | 87°F | 64°F | 109°F 1936 | 55°F 1942 | 27% | 0% |
| Jul 24 | 87°F | 64°F | 111°F 1940 | 54°F 1933 | 27% | 0% |
| Jul 25 | 87°F | 64°F | 105°F 1936 | 57°F 1937 | 27% | 0% |
| Jul 26 | 87°F | 64°F | 106°F 1936 | 57°F 1937 | 27% | 0% |
| Jul 27 | 87°F | 64°F | 104°F 1932 | 53°F 2018 | 27% | 0% |
| Jul 28 | 87°F | 64°F | 103°F 1935 | 54°F 1944 | 27% | 0% |
| Jul 29 | 87°F | 64°F | 111°F 1947 | 51°F 2009 | 27% | 0% |
| Jul 30 | 87°F | 64°F | 102°F 1933 | 51°F 2009 | 27% | 0% |
| Jul 31 | 87°F | 64°F | 100°F 1939 | 52°F 2009 | 27% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 5:55 AM, sunset 9:12 PM
- July 31
- sunrise 6:20 AM, sunset 8:51 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094911 (Yankton 2 E), public domain. Records: NOAA GHCN-Daily, station USW00094911, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.