Annual mean
Annual mean of daily highs
Annual mean of daily lows
Altona town, Indiana
Official LSAD Designation: Altona town • Census GEOID: 1801288
• DeKalb County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Altona town.
Reference Weather Station: GARRETT, IN US (ID: USC00123206)
• Located 1.4 miles from community center
• Elevation: 268.2 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 31.7° | 16.8° | 24.2° | 2.49" |
| February | 35.4° | 18.5° | 26.9° | 2.17" |
| March | 46.2° | 26.6° | 36.4° | 2.41" |
| April | 59.6° | 36.8° | 48.2° | 3.65" |
| May | 70.7° | 48.6° | 59.7° | 4.47" |
| June | 80.1° | 58.6° | 69.3° | 4.18" |
| July | 84.0° | 62.1° | 73.1° | 3.69" |
| August | 81.6° | 59.9° | 70.7° | 3.67" |
| September | 75.7° | 52.2° | 63.9° | 3.13" |
| October | 62.8° | 41.4° | 52.1° | 2.79" |
| November | 48.3° | 31.3° | 39.8° | 2.80" |
| December | 36.6° | 23.3° | 29.9° | 2.55" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station GARRETT, IN US (ID: USC00123206) • 1.4 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 | 50.5 | 60.7 | 40.3 |
| 2011 | 50.3 | 59.9 | 40.8 |
| 2012 | 52.5 | 63.4 | 41.6 |
| 2013 | 48.7 | 58.3 | 39.2 |
| 2014 | 46.0 | 56.2 | 35.9 |
| 2015 | 49.0 | 59.1 | 38.9 |
| 2016 | 51.4 | 61.3 | 41.5 |
| 2017 | 50.9 | 60.7 | 41.2 |
| 2018 | 49.5 | 58.6 | 40.5 |
| 2019 | 48.9 | 58.6 | 39.3 |
| 2020 | 50.7 | 60.5 | 40.9 |
| 2021 | 50.9 | 60.8 | 41.1 |
| 2022 | 49.4 | 59.9 | 38.8 |
| 2023 | 51.7 | 62.2 | 41.1 |
| 2024 | 52.8 | 63.4 | 42.3 |
| 2025 | 50.0 | 60.7 | 39.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.