January weather in Grand Junction, CO
The average temperature in Grand Junction in January is 29.2°F (19.4°F–39.0°F). Average precipitation: 0.77 inches.
January is a winter month in Grand Junction, and is cooler than the annual average of 54.6°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Daylight averages about 9h 33m. For travel, January is cold.
Avg High
39.0°F
Avg Low
19.4°F
Precipitation
0.77 in
Daylight
9h 33m
January records in Grand Junction
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 48.9°F (2018) | 3.9°F (2015) | 0.09 in (2020) |
| January 2 | 46.0°F (2012) | 1.0°F (2013) | 0.14 in (2023) |
| January 3 | 46.9°F (2025) | 1.0°F (2013) | 0.07 in (2023) |
| January 4 | 48.0°F (2024) | 0.0°F (2013) | 0.02 in (2014) |
| January 5 | 54.0°F (2026) | -2.9°F (2013) | 0.26 in (2017) |
| January 6 | 48.9°F (2026) | -2.0°F (2013) | 0.11 in (2016) |
| January 7 | 48.9°F (2015) | 1.0°F (2013) | 0.21 in (2016) |
| January 8 | 45.0°F (2015) | 3.0°F (2013) | 0.12 in (2026) |
| January 9 | 45.0°F (2015) | 10.9°F (2013) | 0.27 in (2017) |
| January 10 | 53.1°F (2023) | 10.9°F (2013) | 0.13 in (2018) |
| January 11 | 51.1°F (2017) | 12.0°F (2013) | 0.17 in (2015) |
| January 12 | 48.0°F (2026) | 1.9°F (2013) | 0.04 in (2014) |
| January 13 | 48.0°F (2026) | 1.0°F (2013) | 0.26 in (2015) |
| January 14 | 57.0°F (2026) | -5.1°F (2013) | 0.03 in (2024) |
| January 15 | 52.0°F (2026) | -6.0°F (2013) | 0.05 in (2023) |
| January 16 | 46.9°F (2026) | 1.0°F (2013) | 0.20 in (2023) |
| January 17 | 48.0°F (2015) | 3.9°F (2013) | 0.22 in (2023) |
| January 18 | 48.0°F (2018) | 5.0°F (2013) | 0.05 in (2016) |
| January 19 | 53.1°F (2012) | 3.0°F (2013) | 0.05 in (2016) |
| January 20 | 55.9°F (2012) | 3.0°F (2013) | 0.15 in (2016) |
| January 21 | 48.0°F (2012) | 3.9°F (2025) | 0.22 in (2018) |
| January 22 | 46.9°F (2024) | 6.1°F (2013) | 0.13 in (2012) |
| January 23 | 50.0°F (2017) | 6.1°F (2013) | 0.11 in (2026) |
| January 24 | 50.0°F (2024) | 10.9°F (2025) | 0.21 in (2021) |
| January 25 | 48.9°F (2015) | 16.0°F (2026) | 0.03 in (2021) |
| January 26 | 57.9°F (2015) | 12.0°F (2026) | 0.37 in (2013) |
| January 27 | 52.0°F (2015) | 12.9°F (2017) | 0.23 in (2020) |
| January 28 | 55.9°F (2024) | 14.0°F (2017) | 0.01 in (2013) |
| January 29 | 57.9°F (2024) | 19.0°F (2013) | 0.04 in (2021) |
| January 30 | 59.0°F (2024) | 18.0°F (2013) | 0.46 in (2014) |
| January 31 | 59.0°F (2024) | 10.9°F (2023) | 0.22 in (2015) |