Annual mean
Annual mean of daily highs
Annual mean of daily lows
Reliance town, South Dakota
Official LSAD Designation: Reliance town • Census GEOID: 4654020
• Lyman County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Reliance town.
Reference Weather Station: KENNEBEC, SD US (ID: USC00394516)
• Located 12.9 miles from community center
• Elevation: 512.4 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 31.6° | 9.2° | 20.4° | 0.45" |
| February | 36.4° | 12.7° | 24.6° | 0.59" |
| March | 49.0° | 22.7° | 35.9° | 0.96" |
| April | 61.6° | 32.9° | 47.3° | 2.34" |
| May | 72.4° | 44.9° | 58.6° | 3.29" |
| June | 82.4° | 55.6° | 69.0° | 3.48" |
| July | 89.7° | 61.4° | 75.6° | 2.84" |
| August | 87.8° | 59.2° | 73.5° | 2.31" |
| September | 80.3° | 49.5° | 64.9° | 1.72" |
| October | 63.8° | 35.6° | 49.7° | 1.63" |
| November | 47.1° | 22.3° | 34.7° | 0.71" |
| December | 34.3° | 12.5° | 23.4° | 0.47" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station KENNEBEC, SD US (ID: USC00394516) • 12.9 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 47.5 | 59.6 | 35.4 |
| 2011 | 46.9 | 59.8 | 34.0 |
| 2012 | 51.9 | 66.8 | 37.0 |
| 2013 | 46.4 | 59.2 | 33.6 |
| 2014 | 46.5 | 60.8 | 32.3 |
| 2015 | 50.5 | 64.5 | 36.4 |
| 2016 | 50.9 | 64.3 | 37.5 |
| 2017 | 49.7 | 63.3 | 36.1 |
| 2018 | 46.9 | 59.2 | 34.6 |
| 2019 | 44.6 | 55.7 | 33.4 |
| 2020 | 49.5 | 63.0 | 36.0 |
| 2021 | 50.5 | 64.0 | 36.9 |
| 2022 | 48.1 | 62.5 | 33.7 |
| 2023 | 48.8 | 62.0 | 35.5 |
| 2024 | 50.3 | 63.4 | 37.2 |
| 2025 | 50.3 | 64.1 | 36.5 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.