Blackduck Weather in September
Average highs run from 73°F on September 1 to 61°F on September 30, and lows from 47°F to 37°F.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 68°F
- Average low
- 42°F
- Record high
- 98°FSep 3, 1983
- Record low
- 17°FSep 22, 1974
- Chance of a freeze
- 86%
- Daylight
- 13 h 22 min to 11 h 43 min
- Cloud cover
- 59%
- Humidity
- 69%
- Dew point
- 47°F
- Wind
- 11.4 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 |
|---|---|---|---|---|---|---|
| Sep 1 | 73°F | 47°F | 91°F 1990 | 32°F 1974 | 0% | |
| Sep 2 | 73°F | 47°F | 92°F 1983 | 32°F 1974 | 0% | |
| Sep 3 | 73°F | 47°F | 98°F 1983 | 31°F 1974 | 0% | |
| Sep 4 | 72°F | 46°F | 94°F 2023 | 29°F 1961 | 0% | |
| Sep 5 | 72°F | 46°F | 91°F 1970 | 30°F 1984 | 0% | |
| Sep 6 | 72°F | 46°F | 92°F 1970 | 31°F 1988 | 0% | |
| Sep 7 | 71°F | 45°F | 94°F 1978 | 30°F 1956 | 0% | |
| Sep 8 | 71°F | 45°F | 94°F 1976 | 26°F 1956 | 0% | |
| Sep 9 | 70°F | 45°F | 87°F 1980 | 30°F 2020 | 0% | |
| Sep 10 | 70°F | 44°F | 88°F 2005 | 31°F 1988 | 0% | |
| Sep 11 | 70°F | 44°F | 88°F 1952 | 28°F 1955 | 0% | |
| Sep 12 | 69°F | 43°F | 89°F 1976 | 29°F 1955 | 0% | |
| Sep 13 | 69°F | 43°F | 86°F 1969 | 27°F 1975 | 0% | |
| Sep 14 | 68°F | 43°F | 83°F 2024 | 29°F 1996 | 0% | |
| Sep 15 | 68°F | 42°F | 81°F 1969 | 26°F 1964 | ||
| Sep 16 | 68°F | 42°F | 83°F 2024 | 26°F 1982 | ||
| Sep 17 | 67°F | 42°F | 89°F 2018 | 23°F 1959 | ||
| Sep 18 | 67°F | 41°F | 86°F 2024 | 27°F 2020 | ||
| Sep 19 | 66°F | 41°F | 90°F 2000 | 28°F 1979 | ||
| Sep 20 | 66°F | 41°F | 91°F 1984 | 20°F 1973 | ||
| Sep 21 | 66°F | 40°F | 84°F 2023 | 22°F 1973 | ||
| Sep 22 | 65°F | 40°F | 84°F 2015 | 17°F 1974 | ||
| Sep 23 | 65°F | 39°F | 82°F 2020 | 22°F 1983 | ||
| Sep 24 | 64°F | 39°F | 85°F 1958 | 24°F 1951 | ||
| Sep 25 | 64°F | 39°F | 82°F 1990 | 23°F 1982 | ||
| Sep 26 | 63°F | 38°F | 82°F 2024 | 17°F 1965 | ||
| Sep 27 | 63°F | 38°F | 82°F 1963 | 24°F 1967 | ||
| Sep 28 | 62°F | 38°F | 85°F 2014 | 20°F 1961 | ||
| Sep 29 | 62°F | 37°F | 86°F 2024 | 21°F 1984 | ||
| Sep 30 | 61°F | 37°F | 84°F 2025 | 24°F 1984 |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- September 1
- sunrise 6:37 AM, sunset 7:59 PM
- September 30
- sunrise 7:16 AM, sunset 6:59 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00210809 (Blackduck), public domain. Records: NOAA GHCN-Daily, station USC00211374, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.