Mellette County Weather in October
Average highs run from 72°F on October 1 to 56°F on October 31, and lows from 44°F to 30°F. Normal precipitation for the month is 1.79 in over about 6 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 64°F
- Average low
- 37°F
- Precipitation
- 1.79 in
- Snowfall
- 1.6 in
- Record high
- 95°FOct 1, 1967
- Record low
- 1°FOct 30, 1991
- Chance of a freeze
- 99%
- Days of 90°F or more
- 1.0
- Daylight
- 11 h 43 min to 10 h 17 min
- Cloud cover
- 57%
- Humidity
- 60%
- Dew point
- 34°F
- Wind
- 11.9 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 |
|---|---|---|---|---|---|---|
| Oct 1 | 72°F | 44°F | 95°F 1967 | 19°F 1974 | 20% | 1% |
| Oct 2 | 71°F | 43°F | 92°F 1997 | 19°F 1999 | 20% | 1% |
| Oct 3 | 71°F | 43°F | 93°F 1997 | 27°F 1968 | 20% | 1% |
| Oct 4 | 70°F | 42°F | 95°F 1967 | 22°F 1988 | 20% | 1% |
| Oct 5 | 70°F | 42°F | 93°F 1975 | 22°F 1988 | 20% | 1% |
| Oct 6 | 69°F | 41°F | 92°F 1970 | 20°F 1991 | 20% | 1% |
| Oct 7 | 68°F | 41°F | 94°F 1993 | 17°F 2000 | 20% | 1% |
| Oct 8 | 68°F | 40°F | 90°F 1975 | 17°F 2000 | 20% | 1% |
| Oct 9 | 67°F | 40°F | 89°F 1980 | 18°F 1970 | 20% | 2% |
| Oct 10 | 67°F | 39°F | 90°F 1980 | 17°F 2009 | 20% | 2% |
| Oct 11 | 66°F | 39°F | 86°F 1974 | 17°F 2009 | 20% | 2% |
| Oct 12 | 66°F | 38°F | 86°F 1995 | 20°F 2009 | 20% | 2% |
| Oct 13 | 65°F | 38°F | 87°F 1995 | 15°F 1986 | 19% | 2% |
| Oct 14 | 64°F | 37°F | 88°F 1968 | 19°F 1983 | 19% | 2% |
| Oct 15 | 64°F | 37°F | 82°F 1968 | 20°F 1966 | 19% | 2% |
| Oct 16 | 63°F | 37°F | 86°F 2010 | 13°F 1976 | 19% | 3% |
| Oct 17 | 63°F | 36°F | 88°F 1991 | 18°F 1992 | 19% | 3% |
| Oct 18 | 62°F | 36°F | 85°F 1974 | 16°F 1972 | 19% | 3% |
| Oct 19 | 62°F | 35°F | 84°F 1973 | 16°F 1972 | 19% | 3% |
| Oct 20 | 61°F | 35°F | 88°F 2003 | 15°F 1982 | 18% | 3% |
| Oct 21 | 61°F | 34°F | 82°F 1978 | 14°F 1987 | 18% | 4% |
| Oct 22 | 60°F | 34°F | 88°F 1992 | 12°F 1981 | 18% | 4% |
| Oct 23 | 60°F | 34°F | 83°F 1992 | 10°F 1981 | 18% | 4% |
| Oct 24 | 59°F | 33°F | 84°F 1973 | 12°F 1981 | 18% | 4% |
| Oct 25 | 59°F | 33°F | 81°F 1989 | 16°F 1976 | 18% | 4% |
| Oct 26 | 58°F | 32°F | 78°F 1989 | 6°F 1997 | 17% | 5% |
| Oct 27 | 58°F | 32°F | 82°F 1966 | 11°F 1969 | 17% | 5% |
| Oct 28 | 57°F | 32°F | 82°F 1983 | 10°F 1980 | 17% | 5% |
| Oct 29 | 57°F | 31°F | 80°F 1978 | 10°F 1991 | 17% | 5% |
| Oct 30 | 56°F | 31°F | 83°F 1968 | 1°F 1991 | 17% | 5% |
| Oct 31 | 56°F | 30°F | 86°F 1968 | 4°F 2002 | 16% | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- October 1
- sunrise 7:41 AM, sunset 7:24 PM
- October 31
- sunrise 8:18 AM, sunset 6:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00391539 (Cedar Butte), public domain. Records: NOAA GHCN-Daily, station USC00395620, 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.