Annual mean
Annual mean of daily highs
Annual mean of daily lows
Terril city, Iowa
Official LSAD Designation: Terril city • Census GEOID: 1977520
• Dickinson County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Terril city.
Reference Weather Station: SPIRIT LAKE, IA US (ID: USC00137859)
• Located 11.8 miles from community center
• Elevation: 432.8 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 24.0° | 7.1° | 15.6° | 0.55" |
| February | 28.3° | 11.0° | 19.6° | 0.63" |
| March | 41.6° | 23.2° | 32.4° | 1.43" |
| April | 55.9° | 35.1° | 45.5° | 2.99" |
| May | 68.2° | 47.6° | 57.9° | 4.13" |
| June | 78.9° | 58.6° | 68.7° | 4.77" |
| July | 82.8° | 62.6° | 72.7° | 3.53" |
| August | 80.1° | 60.2° | 70.1° | 3.69" |
| September | 73.1° | 52.1° | 62.6° | 3.03" |
| October | 59.0° | 38.6° | 48.8° | 2.09" |
| November | 42.3° | 24.9° | 33.6° | 1.39" |
| December | 28.6° | 12.9° | 20.8° | 0.82" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station SPIRIT LAKE, IA US (ID: USC00137859) • 11.8 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 | 46.3 | 54.8 | 37.7 |
| 2011 | 46.4 | 55.4 | 37.4 |
| 2012 | 50.4 | 60.0 | 40.7 |
| 2013 | 44.8 | 53.2 | 36.4 |
| 2014 | 43.5 | 52.3 | 34.7 |
| 2015 | 47.7 | 56.6 | 38.8 |
| 2016 | 48.3 | 57.0 | 39.6 |
| 2017 | 47.4 | 56.5 | 38.3 |
| 2018 | 44.4 | 53.0 | 35.7 |
| 2019 | 43.6 | 52.1 | 35.1 |
| 2020 | 46.9 | 56.9 | 36.8 |
| 2021 | 48.0 | 57.6 | 38.3 |
| 2022 | 44.8 | 55.0 | 34.5 |
| 2023 | 47.7 | 57.8 | 37.7 |
| 2024 | 49.3 | 59.2 | 39.4 |
| 2025 | 47.5 | 57.7 | 37.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.