December weather in Nashua, NH
The average temperature in Nashua in December is 29.6°F (19.5°F–39.6°F). Average precipitation: 4.45 inches.
December is a winter month in Nashua, and is cooler than the annual average of 48.8°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Daylight averages about 8h 52m. For travel, December is cold.
Avg High
39.6°F
Avg Low
19.5°F
Precipitation
4.45 in
Daylight
8h 52m
December records in Nashua
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (2020) | 12.0°F (2019) | 1.57 in (2020) |
| December 2 | 61.0°F (2020) | 12.0°F (2019) | 0.79 in (2019) |
| December 3 | 50.0°F (2016) | 12.9°F (2024) | 0.88 in (2025) |
| December 4 | 54.0°F (2022) | 15.1°F (2021) | 0.94 in (2023) |
| December 5 | 55.0°F (2020) | 0.0°F (2025) | 0.26 in (2020) |
| December 6 | 57.0°F (2015) | 12.0°F (2018) | 1.99 in (2020) |
| December 7 | 60.1°F (2015) | 10.0°F (2019) | 0.81 in (2022) |
| December 8 | 61.0°F (2015) | -0.9°F (2019) | 0.09 in (2022) |
| December 9 | 48.9°F (2022) | -6.0°F (2025) | 0.02 in (2021) |
| December 10 | 52.0°F (2019) | -5.1°F (2025) | 1.45 in (2014) |
| December 11 | 60.1°F (2023) | 5.0°F (2016) | 1.88 in (2023) |
| December 12 | 59.0°F (2021) | 10.0°F (2018) | 1.39 in (2024) |
| December 13 | 57.9°F (2015) | 6.1°F (2018) | 0.48 in (2020) |
| December 14 | 53.1°F (2021) | 8.1°F (2024) | 1.48 in (2019) |
| December 15 | 52.0°F (2015) | 3.0°F (2025) | 0.47 in (2015) |
| December 16 | 57.0°F (2015) | -2.9°F (2016) | 0.36 in (2022) |
| December 17 | 57.9°F (2021) | 3.0°F (2016) | 1.36 in (2022) |
| December 18 | 57.9°F (2023) | 8.1°F (2017) | 1.73 in (2023) |
| December 19 | 61.0°F (2023) | -2.9°F (2020) | 2.40 in (2023) |
| December 20 | 55.9°F (2025) | 0.0°F (2020) | 0.45 in (2025) |
| December 21 | 48.0°F (2018) | 5.0°F (2019) | 0.31 in (2018) |
| December 22 | 62.1°F (2018) | 5.0°F (2019) | 0.46 in (2018) |
| December 23 | 62.1°F (2018) | -0.9°F (2024) | 1.87 in (2022) |
| December 24 | 55.0°F (2022) | 0.0°F (2024) | 1.16 in (2015) |
| December 25 | 69.1°F (2015) | 5.0°F (2022) | 1.05 in (2020) |
| December 26 | 66.9°F (2015) | 7.0°F (2022) | 0.78 in (2020) |
| December 27 | 54.0°F (2015) | 0.0°F (2017) | 0.58 in (2015) |
| December 28 | 55.9°F (2016) | -7.1°F (2017) | 0.17 in (2023) |
| December 29 | 52.0°F (2014) | -9.0°F (2017) | 0.68 in (2015) |
| December 30 | 53.1°F (2024) | -6.0°F (2017) | 1.22 in (2016) |
| December 31 | 60.1°F (2022) | -11.0°F (2017) | 1.37 in (2019) |