Annual mean
Annual mean of daily highs
Annual mean of daily lows
Williams city, Iowa
Official LSAD Designation: Williams city • Census GEOID: 1985800
• Hamilton County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Williams city.
Reference Weather Station: WEBSTER CITY, IA US (ID: USC00138806)
• Located 13.1 miles from community center
• Elevation: 326.7 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 26.2° | 6.9° | 16.6° | 0.87" |
| February | 30.8° | 10.9° | 20.9° | 1.34" |
| March | 44.1° | 23.3° | 33.7° | 2.05" |
| April | 58.9° | 33.9° | 46.4° | 3.72" |
| May | 70.0° | 46.7° | 58.3° | 5.27" |
| June | 79.5° | 57.2° | 68.3° | 5.76" |
| July | 82.8° | 60.8° | 71.8° | 4.41" |
| August | 80.5° | 58.0° | 69.2° | 4.75" |
| September | 74.8° | 48.9° | 61.8° | 3.36" |
| October | 61.9° | 36.5° | 49.2° | 2.65" |
| November | 45.4° | 24.1° | 34.8° | 1.70" |
| December | 31.7° | 13.3° | 22.5° | 1.36" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station WEBSTER CITY, IA US (ID: USC00138806) • 13.1 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 | 47.6 | 58.7 | 36.4 |
| 2011 | 47.1 | 58.3 | 35.8 |
| 2012 | 50.5 | 63.2 | 37.8 |
| 2013 | 45.1 | 56.2 | 33.8 |
| 2014 | 43.6 | 54.6 | 32.5 |
| 2015 | 47.5 | 58.4 | 36.5 |
| 2016 | 48.8 | 59.5 | 38.0 |
| 2017 | 48.1 | 59.3 | 36.9 |
| 2018 | 45.5 | 55.7 | 35.2 |
| 2019 | 44.7 | 55.3 | 34.2 |
| 2020 | 47.0 | 58.6 | 35.5 |
| 2021 | 48.1 | 59.5 | 36.7 |
| 2022 | 45.2 | 57.0 | 33.3 |
| 2023 | 48.2 | 59.9 | 36.5 |
| 2024 | 49.4 | 61.1 | 37.6 |
| 2025 | 47.6 | 59.1 | 36.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.