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Sioux County, ND

Tuesday : 0.28 in of precipitation averaged over Sioux County, ND, the wettest 29 September in the county average since 2019, 4th wettest of 76 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
71.5°F
Warmest since 2025
33rd warmest of 76
Low
55.5°F
Warmest since 2021
2nd warmest of 76
Precipitation
0.28 in
Wettest since 2019
4th wettest of 76
Every 29 September low of the county average in Sioux County, ND since 1951: 55.5°F in 2026; the lowest is 27.5°F, in 1984.
2021: 56.2°F1984: 27.5°F2026: 55.5°F 2026 55.5°F 1984 27.5°F since 2021 1951 2026
  • Normal range, 31.4 to 46.3°F
Every year as a table

Every 29 September high of the county average in Sioux County, ND since 1951: 71.5°F in 2026; the highest is 89.8°F, in 2021.

YearHigh, °FLow, °F
202671.555.5
202584.752
202489.351.7
202373.147.9
20227947.4
202189.856.2
20206541.2
20195540.2
201849.631.4
20177238.6
201670.838.2
201568.835.2
201459.144.6
201365.441.3
201283.246
201178.443.5
20107943.6
200961.333.8
200866.836.8
200778.445.2
200661.435.2
200564.436.1
200470.741.1
200355.730.7
200256.639.3
200179.149.5
200084.143.6
199961.431.2
199878.538.7
199774.448.6
199657.432.8
199581.350.2
19947841.9
199363.234
199269.630
199175.540.8
199060.136.1
198980.747
198851.643.2
198763.339.8
198660.641.9
198541.829.5
198452.627.5
198360.138.8
198257.532.9
198173.736.9
198083.846.7
197978.242.7
197872.746.3
197763.342.1
197672.432.9
197555.840.3
197463.532.9
197373.642.8
197253.631.7
197165.140.9
197077.938.3
196975.242.6
196869.241.4
19678040.1
196666.342.3
196540.235.1
196464.931.2
196370.235.1
196271.150.4
196164.233.6
196058.938.4
195944.633.1
195876.537.7
195783.846.3
195653.329.4
195575.642.7
195467.140.2
195373.843.3
195281.545.4
195164.533.5

The month

September 2026 so far averaged 63.3°F in Sioux County, ND, the warmest 1 to 29 September in the county average since 2024, tied 7th warmest of 76 (with 2021, 2009 and 1990) (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 70°F in Sioux County, ND, the warmest August in the county average since 2022, 48th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a high of 71.5°F averaged over Sioux County, ND, the warmest 29 September in the county average since 2025, 33rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 55.5°F averaged over Sioux County, ND, the warmest 29 September night in the county average since 2021, 2nd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Bismarck, ND 48.6 mi, the nearest city with its own station