Annual mean
Annual mean of daily highs
Annual mean of daily lows
Egan city, South Dakota
Official LSAD Designation: Egan city • Census GEOID: 4618460
• Moody County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Egan city.
Reference Weather Station: FLANDREAU, SD US (ID: USC00392984)
• Located 4.5 miles from community center
• Elevation: 477.6 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 22.6° | 3.5° | 13.1° | 0.54" |
| February | 27.6° | 7.0° | 17.3° | 0.76" |
| March | 39.7° | 19.3° | 29.5° | 1.32" |
| April | 54.4° | 31.4° | 42.9° | 2.67" |
| May | 67.0° | 44.7° | 55.8° | 4.12" |
| June | 76.8° | 56.1° | 66.4° | 4.53" |
| July | 81.3° | 59.9° | 70.6° | 3.81" |
| August | 79.0° | 57.2° | 68.1° | 3.60" |
| September | 72.3° | 47.8° | 60.0° | 3.07" |
| October | 58.2° | 34.2° | 46.2° | 2.21" |
| November | 41.4° | 21.1° | 31.2° | 1.01" |
| December | 27.5° | 9.6° | 18.6° | 0.85" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station FLANDREAU, SD US (ID: USC00392984) • 4.5 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 | 43.4 | 53.7 | 33.2 |
| 2011 | 43.1 | 53.7 | 32.5 |
| 2012 | 46.7 | 58.8 | 34.5 |
| 2013 | 38.6 | 49.1 | 28.1 |
| 2014 | 39.1 | 49.8 | 28.3 |
| 2015 | 44.8 | 55.7 | 33.9 |
| 2016 | 45.7 | 56.2 | 35.2 |
| 2017 | 44.5 | 55.1 | 34.0 |
| 2018 | 41.8 | 51.7 | 31.9 |
| 2019 | 40.6 | 50.0 | 31.2 |
| 2020 | 43.8 | 54.6 | 33.0 |
| 2021 | 45.2 | 56.2 | 34.2 |
| 2022 | 42.0 | 53.7 | 30.2 |
| 2023 | 44.3 | 55.6 | 33.0 |
| 2024 | 46.6 | 57.5 | 35.8 |
| 2025 | 45.5 | 57.0 | 34.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.