Annual mean
Annual mean of daily highs
Annual mean of daily lows
Somerville CDP, Ohio
Official LSAD Designation: Somerville CDP • Census GEOID: 3972998
• Butler County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Somerville CDP.
Reference Weather Station: EATON, OH US (ID: USC00332485)
• Located 11.7 miles from community center
• Elevation: 305.4 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 35.4° | 17.4° | 26.4° | 3.13" |
| February | 39.6° | 19.3° | 29.5° | 2.56" |
| March | 50.2° | 28.2° | 39.2° | 3.58" |
| April | 63.2° | 38.2° | 50.7° | 4.53" |
| May | 73.2° | 49.3° | 61.2° | 4.80" |
| June | 81.7° | 58.6° | 70.2° | 4.64" |
| July | 84.9° | 61.8° | 73.4° | 4.28" |
| August | 84.0° | 59.8° | 71.9° | 3.01" |
| September | 78.6° | 52.5° | 65.5° | 3.04" |
| October | 66.0° | 40.9° | 53.4° | 3.19" |
| November | 52.1° | 30.7° | 41.4° | 3.16" |
| December | 40.5° | 22.9° | 31.7° | 3.19" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station EATON, OH US (ID: USC00332485) • 11.7 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 | 51.5 | 62.5 | 40.5 |
| 2011 | 52.6 | 62.9 | 42.4 |
| 2012 | 54.2 | 65.6 | 42.9 |
| 2013 | 50.6 | 60.5 | 40.7 |
| 2014 | 49.0 | 59.4 | 38.6 |
| 2015 | 51.5 | 62.1 | 40.8 |
| 2016 | 53.2 | 64.2 | 42.3 |
| 2017 | 52.9 | 63.8 | 42.1 |
| 2018 | 51.7 | 61.8 | 41.6 |
| 2019 | 51.4 | 62.3 | 40.5 |
| 2020 | 52.1 | 62.7 | 41.5 |
| 2021 | 52.1 | 62.3 | 41.9 |
| 2022 | 50.9 | 61.7 | 40.0 |
| 2023 | 52.9 | 63.9 | 41.8 |
| 2024 | 54.0 | 64.7 | 43.4 |
| 2025 | 51.7 | 62.4 | 40.9 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.