Annual mean
Annual mean of daily highs
Annual mean of daily lows
Ossian city, Iowa
Official LSAD Designation: Ossian city • Census GEOID: 1959970
• Winneshiek County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Ossian city.
Reference Weather Station: DECORAH, IA US (ID: USC00132110)
• Located 11.0 miles from community center
• Elevation: 262.1 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 27.7° | 10.4° | 19.0° | 1.01" |
| February | 32.8° | 14.0° | 23.4° | 1.10" |
| March | 46.2° | 25.9° | 36.0° | 2.05" |
| April | 61.3° | 37.3° | 49.3° | 3.95" |
| May | 72.5° | 48.4° | 60.5° | 4.94" |
| June | 81.4° | 58.6° | 70.0° | 6.13" |
| July | 84.4° | 62.6° | 73.5° | 4.42" |
| August | 82.7° | 60.7° | 71.7° | 4.39" |
| September | 76.4° | 52.3° | 64.4° | 3.60" |
| October | 63.2° | 40.4° | 51.8° | 2.66" |
| November | 46.6° | 28.4° | 37.5° | 2.05" |
| December | 32.9° | 17.4° | 25.2° | 1.31" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station DECORAH, IA US (ID: USC00132110) • 11.0 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 | 47.7 | 59.0 | 36.4 |
| 2011 | 47.7 | 58.2 | 37.1 |
| 2012 | 51.5 | 63.5 | 39.4 |
| 2013 | 45.8 | 56.1 | 35.5 |
| 2014 | 43.9 | 54.7 | 33.1 |
| 2015 | 48.6 | 59.5 | 37.6 |
| 2016 | 49.6 | 59.7 | 39.4 |
| 2017 | 48.9 | 59.4 | 38.4 |
| 2018 | 47.0 | 57.3 | 36.8 |
| 2019 | Unavailable | Unavailable | Unavailable |
| 2020 | 49.8 | 60.8 | 38.9 |
| 2021 | 50.4 | 61.3 | 39.4 |
| 2022 | 47.4 | 58.3 | 36.4 |
| 2023 | 51.6 | 62.8 | 40.5 |
| 2024 | 52.5 | 64.0 | 40.9 |
| 2025 | 49.6 | 61.1 | 38.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.