January weather in American Falls, ID
The average temperature in American Falls in January is 26.6°F (18.7°F–34.5°F). Average precipitation: 0.96 inches.
January is a winter month in American Falls, and is cooler than the annual average of 48.7°F. Daily temperatures swing about 15.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 11m. For travel, January is cold.
Avg High
34.5°F
Avg Low
18.7°F
Precipitation
0.96 in
Daylight
9h 11m
January records in American Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 45.0°F (2009) | -18.9°F (2016) | 0.13 in (2010) |
| January 2 | 44.1°F (2025) | -11.9°F (2013) | 0.18 in (2009) |
| January 3 | 48.9°F (2012) | -15.0°F (2013) | 0.09 in (2017) |
| January 4 | 48.0°F (2025) | -9.9°F (2013) | 0.27 in (2017) |
| January 5 | 52.0°F (2012) | -11.9°F (2017) | 0.12 in (2024) |
| January 6 | 43.0°F (2012) | -22.0°F (2017) | 0.48 in (2023) |
| January 7 | 48.9°F (2020) | -17.0°F (2017) | 0.12 in (2017) |
| January 8 | 51.1°F (2009) | -6.0°F (2010) | 0.26 in (2017) |
| January 9 | 45.0°F (2018) | 3.9°F (2010) | 0.27 in (2017) |
| January 10 | 45.0°F (2018) | 1.9°F (2011) | 0.26 in (2019) |
| January 11 | 48.0°F (2014) | -4.0°F (2011) | 0.15 in (2017) |
| January 12 | 44.1°F (2018) | -9.0°F (2013) | 0.12 in (2014) |
| January 13 | 48.0°F (2021) | -15.0°F (2013) | 0.35 in (2024) |
| January 14 | 52.0°F (2012) | -13.0°F (2013) | 0.13 in (2020) |
| January 15 | 48.0°F (2012) | -2.0°F (2017) | 0.04 in (2019) |
| January 16 | 45.0°F (2011) | -13.0°F (2024) | 0.24 in (2024) |
| January 17 | 45.0°F (2020) | -9.0°F (2013) | 0.26 in (2019) |
| January 18 | 53.1°F (2015) | -9.0°F (2013) | 0.19 in (2012) |
| January 19 | 55.0°F (2018) | -9.9°F (2013) | 0.95 in (2012) |
| January 20 | 48.0°F (2019) | -9.0°F (2013) | 0.18 in (2012) |
| January 21 | 44.1°F (2019) | -7.1°F (2013) | 0.37 in (2022) |
| January 22 | 43.0°F (2024) | -7.1°F (2013) | 0.05 in (2011) |
| January 23 | 39.9°F (2024) | -0.9°F (2025) | 0.30 in (2017) |
| January 24 | 42.1°F (2024) | 6.1°F (2025) | 0.32 in (2009) |
| January 25 | 46.0°F (2012) | 9.0°F (2022) | 0.21 in (2011) |
| January 26 | 48.0°F (2013) | 1.9°F (2025) | 0.20 in (2010) |
| January 27 | 46.0°F (2015) | -4.0°F (2009) | 0.15 in (2023) |
| January 28 | 46.0°F (2018) | -6.0°F (2022) | 0.12 in (2020) |
| January 29 | 46.0°F (2021) | -4.0°F (2017) | 0.32 in (2014) |
| January 30 | 57.9°F (2018) | -13.0°F (2023) | 0.16 in (2020) |
| January 31 | 53.1°F (2024) | -11.9°F (2023) | 0.21 in (2016) |