December weather in Potsdam, NY
The average temperature in Potsdam in December is 23.8°F (15.6°F–32.0°F). Average precipitation: 3.07 inches.
December is a winter month in Potsdam, and is cooler than the annual average of 44°F. Daily temperatures swing about 16.4°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 8h 38m. For travel, December is cold.
Avg High
32.0°F
Avg Low
15.6°F
Precipitation
3.07 in
Daylight
8h 38m
December records in Potsdam
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 53.1°F (2014) | 6.1°F (2012) | 1.30 in (2006) |
| December 2 | 48.0°F (2015) | 6.1°F (2014) | 0.90 in (1996) |
| December 3 | 52.0°F (2012) | 5.0°F (2019) | 1.30 in (1986) |
| December 4 | 53.1°F (2012) | 5.0°F (2019) | 0.82 in (2023) |
| December 5 | 66.0°F (2012) | -7.1°F (2025) | 0.83 in (1950) |
| December 6 | 57.0°F (2013) | -0.9°F (2025) | 1.20 in (1977) |
| December 7 | 50.0°F (2021) | 6.1°F (2023) | 1.14 in (1976) |
| December 8 | 46.0°F (2012) | -5.1°F (2018) | 0.68 in (1957) |
| December 9 | 48.9°F (2023) | -4.0°F (2025) | 2.50 in (2008) |
| December 10 | 54.0°F (2023) | 0.0°F (2025) | 1.00 in (1973) |
| December 11 | 54.0°F (2023) | 5.0°F (2018) | 0.62 in (2003) |
| December 12 | 61.0°F (2021) | -4.0°F (2013) | 1.81 in (1952) |
| December 13 | 61.0°F (2021) | -4.0°F (2013) | 1.46 in (1983) |
| December 14 | 46.0°F (2021) | -11.9°F (2013) | 1.60 in (1996) |
| December 15 | 59.0°F (2015) | -11.0°F (2017) | 1.30 in (1954) |
| December 16 | 51.1°F (2011) | -18.0°F (2016) | 1.33 in (2008) |
| December 17 | 63.0°F (2021) | -18.0°F (2013) | 0.90 in (1974) |
| December 18 | 51.1°F (2023) | -18.0°F (2013) | 0.84 in (1970) |
| December 19 | 54.0°F (2025) | -13.0°F (2016) | 0.87 in (2023) |
| December 20 | 55.9°F (2025) | -11.9°F (2019) | 0.45 in (1970) |
| December 21 | 45.0°F (2018) | -6.0°F (2019) | 1.71 in (1973) |
| December 22 | 55.0°F (2018) | -5.1°F (2024) | 1.05 in (1993) |
| December 23 | 51.1°F (2015) | -9.0°F (2024) | 0.68 in (2006) |
| December 24 | 66.0°F (2015) | 1.0°F (2021) | 0.60 in (2025) |
| December 25 | 66.9°F (2015) | -11.0°F (2013) | 1.17 in (2020) |
| December 26 | 46.0°F (2015) | -11.0°F (2013) | 0.77 in (1964) |
| December 27 | 52.0°F (2023) | -18.0°F (2017) | 1.16 in (1957) |
| December 28 | 52.0°F (2014) | -23.1°F (2017) | 1.19 in (1969) |
| December 29 | 52.0°F (2018) | -24.0°F (2017) | 1.28 in (1968) |
| December 30 | 55.9°F (2024) | -16.1°F (2017) | 0.81 in (1948) |
| December 31 | 55.0°F (2022) | -23.1°F (2017) | 1.81 in (1948) |