January weather in Lafayette, CO
The average temperature in Lafayette in January is 33.5°F (19.0°F–48.0°F). Average precipitation: 0.45 inches. Average snowfall is 6.0 inches.
January is a winter month in Lafayette, and is cooler than the annual average of 52.4°F. Daily temperatures swing about 29°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 28m. For travel, January is cool.
Avg High
48.0°F
Avg Low
19.0°F
Precipitation
0.45 in
Snow
6.0 in
January records in Lafayette
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 69.1°F (1997) | -6.0°F (2015) | 0.29 in (2022) |
| January 2 | 77.0°F (1997) | 1.0°F (2022) | 0.14 in (1999) |
| January 3 | 66.0°F (2006) | 1.9°F (1995) | 0.06 in (2023) |
| January 4 | 69.1°F (2001) | 1.0°F (1995) | 0.24 in (1989) |
| January 5 | 75.0°F (2026) | -8.0°F (2004) | 0.47 in (2017) |
| January 6 | 70.0°F (2012) | -9.0°F (2004) | 0.33 in (2022) |
| January 7 | 69.1°F (2006) | -7.1°F (2010) | 0.31 in (1992) |
| January 8 | 73.9°F (2006) | -6.0°F (2010) | 0.11 in (2016) |
| January 9 | 73.9°F (2003) | -2.0°F (1993) | 0.50 in (2026) |
| January 10 | 73.0°F (2003) | -2.0°F (1993) | 0.34 in (2011) |
| January 11 | 66.9°F (2000) | -6.0°F (1997) | 0.18 in (2019) |
| January 12 | 63.0°F (1996) | -11.0°F (1997) | 0.68 in (2019) |
| January 13 | 70.0°F (1996) | -11.9°F (2024) | 0.12 in (2024) |
| January 14 | 66.9°F (2026) | -11.0°F (2024) | 0.08 in (1992) |
| January 15 | 64.9°F (2000) | -7.1°F (2024) | 0.32 in (1987) |
| January 16 | 64.0°F (2026) | -14.1°F (2024) | 0.29 in (2001) |
| January 17 | 66.9°F (2000) | -9.9°F (1987) | 0.16 in (1996) |
| January 18 | 64.0°F (1999) | -6.0°F (1996) | 0.49 in (2023) |
| January 19 | 70.0°F (2009) | -7.1°F (2025) | 0.51 in (1990) |
| January 20 | 73.0°F (2005) | -7.1°F (2025) | 0.21 in (2006) |
| January 21 | 73.0°F (2005) | -5.1°F (2025) | 0.32 in (2018) |
| January 22 | 75.0°F (2009) | -2.9°F (2008) | 0.27 in (2018) |
| January 23 | 71.1°F (2009) | -0.9°F (1996) | 0.20 in (2002) |
| January 24 | 73.0°F (2005) | 1.0°F (2026) | 0.40 in (2026) |
| January 25 | 72.0°F (2003) | -2.9°F (1996) | 0.20 in (1996) |
| January 26 | 69.1°F (2002) | -9.9°F (1996) | 0.40 in (2004) |
| January 27 | 73.0°F (2015) | -2.0°F (2009) | 0.27 in (1989) |
| January 28 | 75.9°F (2015) | -0.9°F (2009) | 0.26 in (2001) |
| January 29 | 75.9°F (2015) | -4.0°F (1991) | 0.24 in (2013) |
| January 30 | 66.0°F (1997) | -11.0°F (1985) | 0.05 in (1985) |
| January 31 | 71.1°F (2016) | -15.0°F (1985) | 0.62 in (2014) |