Annual mean
Annual mean of daily highs
Annual mean of daily lows
Eureka city, South Dakota
Official LSAD Designation: Eureka city • Census GEOID: 4620180
• McPherson County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Eureka city.
Reference Weather Station: EUREKA, SD US (ID: USC00392797)
• Located 0.4 miles from community center
• Elevation: 570.3 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 20.5° | 1.8° | 11.2° | 0.36" |
| February | 25.0° | 5.6° | 15.3° | 0.52" |
| March | 38.3° | 17.5° | 27.9° | 0.82" |
| April | 54.3° | 29.6° | 41.9° | 1.64" |
| May | 66.7° | 42.2° | 54.5° | 3.18" |
| June | 76.1° | 52.8° | 64.5° | 3.78" |
| July | 82.1° | 57.8° | 70.0° | 3.10" |
| August | 81.0° | 55.6° | 68.3° | 2.24" |
| September | 71.9° | 45.9° | 58.9° | 1.79" |
| October | 55.5° | 31.9° | 43.7° | 1.74" |
| November | 38.6° | 18.6° | 28.6° | 0.54" |
| December | 25.4° | 7.8° | 16.6° | 0.54" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station EUREKA, SD US (ID: USC00392797) • 0.4 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 | 43.3 | 54.1 | 32.5 |
| 2011 | 42.3 | 53.4 | 31.2 |
| 2012 | 47.3 | 60.4 | 34.2 |
| 2013 | Unavailable | Unavailable | Unavailable |
| 2014 | 41.3 | 52.1 | 30.5 |
| 2015 | Unavailable | Unavailable | Unavailable |
| 2016 | 44.9 | 56.2 | 33.7 |
| 2017 | 42.7 | 54.5 | 31.0 |
| 2018 | 40.3 | 51.2 | 29.4 |
| 2019 | 38.2 | 48.0 | 28.4 |
| 2020 | 42.9 | 54.2 | 31.5 |
| 2021 | 45.2 | 57.5 | 32.8 |
| 2022 | 40.5 | 52.2 | 28.7 |
| 2023 | 42.6 | 53.5 | 31.6 |
| 2024 | 44.4 | 55.9 | 32.9 |
| 2025 | 42.8 | 54.6 | 31.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.