January is one of the cooler months of the year in Fredericton, with average highs near -5.7°C and lows around -15.4°C (mean -10.5°C). It is one of the drier months, averaging 81 mm of rainfall and 94% relative humidity across the period.
January is one of the cooler months of the year in Fredericton. Across 45 years of records, the warmest January in Fredericton was 2006 — when the month averaged -5.5°C — while the coldest were 1982 and 1994 at -16.6°C. Typical January days reach -5.7°C with nights near -15.4°C. The long-term trend is warming, about 1.1°C per decade.
January is one of the drier months in Fredericton, averaging 81 mm of rainfall. The wettest January on record was 2018 with 153 mm, while the driest was 1985 at 23 mm.
Relative humidity in Fredericton during January averages 94%. The most humid January was 1998 at 100%, and the least humid was 2004 at 87%.
January receives about 1.5 kWh/m²/day of solar energy in Fredericton. The sunniest January was 2004 at 1.8 kWh/m²/day, and the cloudiest were 2002, 2006 and 2023, among others at 1.3.
Average wind speed in Fredericton during January is 0.3 m/s. The windiest Januarys were 2022, 2024 and 2025, among others at 0.3 m/s, while the calmest were 2017, 2020 and 2023, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -12.5°C | -11.2°C | -10.8°C | -9.3°C | -8.4°C | +4.1°C |
| Avg High | -7.3°C | -6.0°C | -6.2°C | -4.7°C | -4.0°C | +3.3°C |
| Avg Low | -17.6°C | -16.5°C | -15.5°C | -14.0°C | -12.7°C | +4.9°C |
| Avg Rain | 80 mm | 108 mm | 67 mm | 79 mm | 62 mm | -19 mm |
January temperatures in Fredericton have risen by about 5.3°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -41.5°C (1981) to a record high of 12.6°C (2013).
Rainfall in January is one of the drier months, averaging 81 mm, with a wettest year of 153 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.8°C per decade while lows rose 1.3°C per decade, narrowing the gap between day and night.
A quieter season to visit Fredericton
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Fredericton. That said, January — with days averaging -5.7°C and nights around -15.4°C (mean -10.5°C) and higher rainfall (81 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | -5.0°C | -8.9°C | -12.7°C | 1.6°C | -23.4°C | 43 mm | 90% | 0.3 m/s | 1.4 |
| 2024 | -3.6°C | -8.3°C | -12.9°C | 2.3°C | -20.8°C | 51 mm | 92% | 0.3 m/s | 1.5 |
| 2023 | -2.2°C | -6.2°C | -10.2°C | 4.3°C | -20.3°C | 120 mm | 96% | 0.2 m/s | 1.3 |
| 2022 | -6.2°C | -12.1°C | -18.1°C | 3.9°C | -27.8°C | 54 mm | 93% | 0.3 m/s | 1.6 |
| 2021 | -2.6°C | -6.2°C | -9.7°C | 1.7°C | -18.4°C | 31 mm | 91% | 0.3 m/s | 1.5 |
| 2020 | -4.4°C | -8.6°C | -12.8°C | 6.7°C | -24.0°C | 71 mm | 97% | 0.2 m/s | 1.5 |
| 2019 | -4.6°C | -10.1°C | -15.6°C | 4.1°C | -24.5°C | 127 mm | 96% | 0.3 m/s | 1.4 |
| 2018 🌧️ | -5.0°C | -9.8°C | -14.6°C | 11.5°C | -25.3°C | 153 mm | 92% | 0.3 m/s | 1.5 |
| 2017 | -3.8°C | -8.2°C | -12.6°C | 4.3°C | -26.9°C | 88 mm | 95% | 0.2 m/s | 1.4 |
| 2016 | -3.5°C | -7.7°C | -11.9°C | 7.1°C | -23.0°C | 48 mm | 91% | 0.3 m/s | 1.6 |
| 2015 | -6.1°C | -11.1°C | -16.1°C | 6.2°C | -24.4°C | 60 mm | 89% | 0.3 m/s | 1.6 |
| 2014 | -4.8°C | -9.7°C | -14.6°C | 9.1°C | -30.4°C | 104 mm | 92% | 0.3 m/s | 1.4 |
| 2013 | -5.5°C | -10.5°C | -15.4°C | 12.6°C | -27.1°C | 31 mm | 91% | 0.3 m/s | 1.7 |
| 2012 | -4.3°C | -8.8°C | -13.3°C | 5.1°C | -21.2°C | 64 mm | 91% | 0.3 m/s | 1.5 |
| 2011 | -5.4°C | -9.6°C | -13.7°C | 3.9°C | -24.8°C | 44 mm | 95% | 0.3 m/s | 1.6 |
| 2010 | -3.7°C | -7.7°C | -11.8°C | 6.7°C | -22.1°C | 69 mm | 94% | 0.3 m/s | 1.5 |
| 2009 | -8.3°C | -13.4°C | -18.6°C | 0.0°C | -33.9°C | 72 mm | 94% | 0.3 m/s | 1.7 |
| 2008 | -4.2°C | -8.6°C | -12.9°C | 5.1°C | -28.3°C | 65 mm | 94% | 0.3 m/s | 1.5 |
| 2007 | -5.6°C | -10.0°C | -14.4°C | 8.3°C | -26.7°C | 89 mm | 95% | 0.3 m/s | 1.6 |
| 2006 🔥 | -1.4°C | -5.5°C | -9.6°C | 11.3°C | -18.9°C | 100 mm | 93% | 0.3 m/s | 1.3 |
| 2005 | -7.2°C | -11.9°C | -16.7°C | 11.1°C | -28.8°C | 54 mm | 89% | 0.3 m/s | 1.7 |
| 2004 | -10.1°C | -14.2°C | -18.3°C | 1.9°C | -28.3°C | 32 mm | 87% | 0.3 m/s | 1.8 |
| 2003 | -9.1°C | -13.8°C | -18.5°C | 0.1°C | -30.2°C | 47 mm | 99% | 0.2 m/s | 1.7 |
| 2002 | -4.0°C | -8.7°C | -13.3°C | 0.6°C | -21.3°C | 69 mm | 97% | 0.2 m/s | 1.3 |
| 2001 | -6.3°C | -12.1°C | -18.0°C | -0.5°C | -26.8°C | 39 mm | 99% | 0.2 m/s | 1.6 |
| 2000 | -5.6°C | -10.0°C | -14.5°C | 8.1°C | -24.2°C | 103 mm | 92% | 0.3 m/s | 1.3 |
| 1999 | -3.6°C | -9.2°C | -14.9°C | 11.7°C | -30.8°C | 123 mm | 88% | 0.3 m/s | 1.5 |
| 1998 | -5.8°C | -10.3°C | -14.9°C | 0.6°C | -29.5°C | 150 mm | 100% | 0.2 m/s | 1.4 |
| 1997 | -6.1°C | -11.9°C | -17.8°C | 4.7°C | -34.2°C | 94 mm | 92% | 0.3 m/s | 1.4 |
| 1996 | -5.1°C | -10.8°C | -16.5°C | 11.3°C | -29.5°C | 96 mm | 88% | 0.3 m/s | 1.3 |
| 1995 | -4.9°C | -8.9°C | -12.9°C | 9.9°C | -36.4°C | 141 mm | 99% | 0.2 m/s | 1.5 |
| 1994 | -10.5°C | -16.6°C | -22.6°C | 2.3°C | -34.0°C | 126 mm | 96% | 0.3 m/s | 1.5 |
| 1993 | -6.8°C | -11.7°C | -16.6°C | 4.7°C | -30.0°C | 61 mm | 90% | 0.3 m/s | 1.3 |
| 1992 | -7.0°C | -11.9°C | -16.8°C | 5.5°C | -28.3°C | 93 mm | 90% | 0.3 m/s | 1.5 |
| 1991 | -7.5°C | -13.2°C | -18.9°C | 0.1°C | -35.6°C | 79 mm | 96% | 0.3 m/s | 1.4 |
| 1990 | -2.9°C | -7.8°C | -12.7°C | 5.2°C | -28.3°C | 115 mm | 97% | 0.2 m/s | 1.4 |
| 1989 | -4.4°C | -10.7°C | -17.1°C | 1.3°C | -25.6°C | 59 mm | 95% | 0.3 m/s | 1.5 |
| 1988 | -6.3°C | -11.5°C | -16.6°C | 0.3°C | -32.4°C | 80 mm | 100% | 0.2 m/s | 1.3 |
| 1987 | -7.1°C | -11.9°C | -16.7°C | 0.0°C | -29.4°C | 101 mm | 98% | 0.3 m/s | 1.4 |
| 1986 | -4.8°C | -10.2°C | -15.5°C | 11.6°C | -31.7°C | 106 mm | 93% | 0.3 m/s | 1.3 |
| 1985 | -10.1°C | -14.4°C | -18.6°C | -2.0°C | -24.8°C | 23 mm | 91% | 0.3 m/s | 1.7 |
| 1984 | -7.2°C | -12.1°C | -17.0°C | 1.5°C | -33.1°C | 85 mm | 98% | 0.2 m/s | 1.3 |
| 1983 | -4.4°C | -9.1°C | -13.8°C | 9.5°C | -24.5°C | 76 mm | 92% | 0.2 m/s | — |
| 1982 ❄️ | -10.8°C | -16.6°C | -22.4°C | 0.1°C | -34.7°C | 96 mm | 100% | 0.3 m/s | — |
| 1981 | -10.4°C | -15.7°C | -21.1°C | 0.0°C | -41.5°C | 96 mm | 100% | 0.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -5.7°C with lows near -15.4°C (mean -10.5°C), based on 45 years of NASA POWER data.
January averages 81 mm of rainfall in Fredericton, one of the drier months. The wettest on record was 153 mm in 2018.
The hottest January reached 12.6°C in 2013. The coldest dipped to -41.5°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 5.3°C. Daytime highs moved from -8.6°C to -3.9°C and overnight lows from -18.6°C to -12.7°C over the same span.
January is one of the cooler months of the year in Fredericton and one of the drier months, so plan for around -5.7°C daytime highs and -15.4°C at night.
Yes — January is the coldest month of the year in Fredericton, averaging -10.5°C.
For January in Fredericton, pack warm layers and a jacket for chilly mornings, with typical highs of -5.7°C and lows of -15.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 94% — quite humid.
Average wind speed in January is 0.3 m/s. The windiest January on record averaged 0.3 m/s (1982).
The wettest January on record was 2018 with 153 mm. On average, January sees 81 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Fredericton behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
