Climate averages 1991–2020
Sioux Falls weather
in October.
A cool, moderately wet month: the 6th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Sioux Falls: daytime highs average 14.7°C and nights cool to about 5.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 61 mm of rain on roughly 7 days, which makes October a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 04 min on an average October day.
The nearest other city in this atlas is Sioux City (119 km away). In October its highs average 16.1°C, 1.4°C warmer than Sioux Falls, with 61 mm of rain.
Among the 498 cities listed in the United States, Sioux Falls ranks joint 471st of 498 for the warmest October highs and joint 182nd of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Sioux Falls is 6.6°C cooler than that mean.
From October to November, average highs fall by 8.8°C to 6.0°C, and monthly rainfall falls from 61 mm to 40 mm.
The annual picture
October in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sioux Falls climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.5°C-12.8°C | -12.8°C | 20 | 4.7 | 9.39 h |
| February | -0.5°C-10.4°C | -10.4°C | 24 | 4.9 | 10.510 h |
| March | 6.6°C-4.2°C | -4.2°C | 46 | 6.6 | 11.912 h |
| April | 13.6°C2.6°C | 2.6°C | 91 | 10.3 | 13.413 h |
| May | 19.9°C9.5°C | 9.5°C | 114 | 12.5 | 14.715 h |
| June | 25.2°C15.4°C | 15.4°C | 130 | 12.5 | 15.415 h |
| July | 27.7°C18.2°C | 18.2°C | 84 | 8.9 | 15.115 h |
| August | 26.6°C17.1°C | 17.1°C | 85 | 8.8 | 14.014 h |
| September | 22.6°C12.8°C | 12.8°C | 80 | 7.9 | 12.613 h |
| October, selected | 14.7°C5.3°C | 5.3°C | 61 | 7.0 | 11.111 h |
| November | 6.0°C-2.7°C | -2.7°C | 40 | 5.5 | 9.710 h |
| December | -1.3°C-9.5°C | -9.5°C | 27 | 5.0 | 9.09 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Sioux City in OctoberUnited States · 119 kmHigh 16.1°C · Low 6.5°C · 61 mm rain
- Omaha in OctoberUnited States · 262 kmHigh 17.4°C · Low 7.8°C · 68 mm rain
- Lincoln in OctoberUnited States · 305 kmHigh 18.1°C · Low 8.1°C · 64 mm rain
- Plymouth, United States in OctoberUnited States · 307 kmHigh 13.4°C · Low 5.9°C · 66 mm rain
- Bloomington (Minnesota), United States in OctoberUnited States · 309 kmHigh 13.8°C · Low 6.4°C · 64 mm rain
- Minneapolis in OctoberUnited States · 319 kmHigh 13.6°C · Low 6.0°C · 67 mm rain
- Brooklyn Park in OctoberUnited States · 319 kmHigh 13.4°C · Low 5.9°C · 67 mm rain
- Saint Paul in OctoberUnited States · 329 kmHigh 13.7°C · Low 6.1°C · 68 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sioux Falls) is explained once on the Sioux Falls year overview and on the Sources, method and limits page.