January weather in Riley, IN
The average temperature in Riley in January is 28.7°F (20.7°F–36.7°F). Average precipitation: 2.60 inches.
January is a winter month in Riley, and is cooler than the annual average of 53.5°F. Daily temperatures swing about 16°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 31m. For travel, January is cold.
Avg High
36.7°F
Avg Low
20.7°F
Precipitation
2.60 in
Daylight
9h 31m
January records in Riley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 62.1°F (2022) | -8.9°F (2018) | 0.71 in (2021) |
| January 2 | 68.0°F (2006) | -8.9°F (2018) | 0.85 in (1999) |
| January 3 | 64.0°F (2004) | -9.8°F (2014) | 1.81 in (2005) |
| January 4 | 59.0°F (2023) | -4.0°F (1999) | 1.67 in (2004) |
| January 5 | 54.0°F (2007) | -13.0°F (1999) | 2.07 in (2005) |
| January 6 | 61.0°F (2008) | -13.9°F (2014) | 0.62 in (1962) |
| January 7 | 66.9°F (2008) | -14.8°F (2014) | 0.18 in (2007) |
| January 8 | 63.0°F (2026) | -3.8°F (2015) | 1.30 in (2008) |
| January 9 | 66.0°F (2026) | -8.0°F (1999) | 0.74 in (2024) |
| January 10 | 60.1°F (2020) | -9.0°F (1999) | 2.27 in (2020) |
| January 11 | 63.0°F (2017) | -6.0°F (1962) | 1.32 in (2020) |
| January 12 | 66.0°F (2005) | 3.9°F (1962) | 1.76 in (2013) |
| January 13 | 63.0°F (2005) | 1.2°F (2011) | 1.31 in (2005) |
| January 14 | 52.0°F (2026) | -4.9°F (2024) | 0.58 in (2007) |
| January 15 | 51.1°F (2000) | -6.9°F (2009) | 0.57 in (2007) |
| January 16 | 57.0°F (2012) | -9.8°F (2009) | 0.73 in (2017) |
| January 17 | 59.0°F (2012) | -5.1°F (2005) | 0.82 in (1999) |
| January 18 | 48.9°F (2020) | -4.0°F (2005) | 1.48 in (2020) |
| January 19 | 59.0°F (2006) | 1.0°F (2003) | 0.64 in (2019) |
| January 20 | 59.0°F (2006) | 0.1°F (2024) | 0.53 in (2017) |
| January 21 | 64.9°F (2017) | -5.8°F (2011) | 1.75 in (1999) |
| January 22 | 61.0°F (2017) | -0.8°F (2014) | 1.68 in (1999) |
| January 23 | 61.0°F (1999) | -0.9°F (2003) | 1.14 in (2019) |
| January 24 | 55.0°F (2010) | -3.8°F (2014) | 0.47 in (2024) |
| January 25 | 55.0°F (2017) | -1.8°F (2008) | 0.54 in (2023) |
| January 26 | 55.0°F (1962) | -5.1°F (2003) | 0.90 in (2012) |
| January 27 | 63.0°F (1999) | -13.0°F (2003) | 0.28 in (2024) |
| January 28 | 64.0°F (2002) | -7.1°F (2026) | 0.25 in (2006) |
| January 29 | 66.9°F (2013) | -8.0°F (2026) | 0.71 in (2006) |
| January 30 | 66.0°F (2013) | -9.9°F (2004) | 1.43 in (2013) |
| January 31 | 64.0°F (2016) | -17.0°F (2004) | 1.21 in (2002) |