January is one of the cooler months of the year in Grand Falls, with average highs near -4.3°C and lows around -12.4°C (mean -8.3°C). It is about average for rainfall, averaging 87 mm of rainfall and 95% relative humidity across the period.
January is one of the cooler months of the year in Grand Falls. Across 45 years of records, the warmest January in Grand Falls was 2021 — when the month averaged -3.8°C — while the coldest was 1991 at -13.2°C. Typical January days reach -4.3°C with nights near -12.4°C. The long-term trend is warming, about 0.8°C per decade.
January is about average for rainfall in Grand Falls, averaging 87 mm of rainfall. The wettest January on record was 1983 with 167 mm, while the driest was 2024 at 34 mm.
Relative humidity in Grand Falls during January averages 95%. The most humid Januarys were 2001, 2008 and 2013 at 100%, and the least humid was 2022 at 88%.
January receives about 1 kWh/m²/day of solar energy in Grand Falls. The sunniest Januarys were 2001, 2002 and 2025 at 1.3 kWh/m²/day, and the cloudiest was 1987 at 0.8.
Average wind speed in Grand Falls during January is 0.1 m/s. The windiest Januarys were 2016, 2018 and 2024, among others at 0.2 m/s, while the calmest were 2022, 2023 and 2025, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -9.0°C | -9.5°C | -8.7°C | -7.3°C | -6.4°C | +2.6°C |
| Avg High | -4.8°C | -5.1°C | -4.7°C | -3.5°C | -2.6°C | +2.2°C |
| Avg Low | -13.1°C | -13.9°C | -12.7°C | -11.1°C | -10.2°C | +2.9°C |
| Avg Rain | 94 mm | 75 mm | 92 mm | 98 mm | 66 mm | -28 mm |
January temperatures in Grand Falls have risen by about 3.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -30.3°C (1993) to a record high of 13.1°C (2018).
Rainfall in January is about average for rainfall, averaging 87 mm, with a wettest year of 167 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.6°C per decade while lows rose 0.9°C per decade, narrowing the gap between day and night.
A quieter season to visit Grand Falls
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Grand Falls. That said, January — with days averaging -4.3°C and nights around -12.4°C (mean -8.3°C) and higher rainfall (87 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 | -2.0°C | -4.5°C | -7.0°C | 7.6°C | -14.6°C | 73 mm | 91% | 0.1 m/s | 1.3 |
| 2024 | -4.5°C | -8.6°C | -12.7°C | 0.4°C | -22.4°C | 34 mm | 96% | 0.2 m/s | 1.2 |
| 2023 | -1.3°C | -4.9°C | -8.4°C | 6.2°C | -15.9°C | 116 mm | 93% | 0.1 m/s | 0.9 |
| 2022 | -1.6°C | -6.0°C | -10.5°C | 8.2°C | -17.5°C | 80 mm | 88% | 0.1 m/s | 1 |
| 2021 🔥 | -0.9°C | -3.8°C | -6.8°C | 3.4°C | -11.6°C | 43 mm | 92% | 0.1 m/s | 1 |
| 2020 | -5.6°C | -10.7°C | -15.8°C | 0.0°C | -26.0°C | 52 mm | 100% | 0.1 m/s | 1.1 |
| 2019 | -3.3°C | -7.7°C | -12.0°C | 6.7°C | -21.5°C | 98 mm | 95% | 0.1 m/s | 1 |
| 2018 | -2.1°C | -6.2°C | -10.2°C | 13.1°C | -18.4°C | 100 mm | 90% | 0.2 m/s | 1 |
| 2017 | -3.6°C | -7.2°C | -10.8°C | 4.9°C | -19.3°C | 72 mm | 94% | 0.1 m/s | 1.2 |
| 2016 | -3.9°C | -8.3°C | -12.7°C | 2.8°C | -22.2°C | 63 mm | 95% | 0.2 m/s | 1 |
| 2015 | -3.7°C | -7.8°C | -11.9°C | 5.3°C | -18.0°C | 87 mm | 90% | 0.1 m/s | 1.1 |
| 2014 | -4.7°C | -8.2°C | -11.8°C | 8.3°C | -27.7°C | 123 mm | 99% | 0.1 m/s | 1.1 |
| 2013 | -5.5°C | -9.2°C | -13.0°C | 0.1°C | -25.3°C | 162 mm | 100% | 0.1 m/s | 1.2 |
| 2012 | -2.6°C | -6.4°C | -10.2°C | 5.0°C | -21.4°C | 83 mm | 92% | 0.1 m/s | 1 |
| 2011 | -2.3°C | -5.7°C | -9.1°C | 0.8°C | -17.8°C | 135 mm | 99% | 0.2 m/s | 1 |
| 2010 | -3.1°C | -6.1°C | -9.1°C | 2.0°C | -19.6°C | 54 mm | 94% | 0.1 m/s | 1 |
| 2009 | -5.5°C | -9.1°C | -12.8°C | 1.2°C | -20.3°C | 83 mm | 94% | 0.2 m/s | 1.2 |
| 2008 | -4.8°C | -8.9°C | -13.1°C | 1.3°C | -27.7°C | 96 mm | 100% | 0.1 m/s | 1.1 |
| 2007 | -3.4°C | -6.5°C | -9.7°C | 4.1°C | -19.1°C | 106 mm | 94% | 0.1 m/s | 1 |
| 2006 | -1.5°C | -5.1°C | -8.6°C | 12.0°C | -18.1°C | 95 mm | 91% | 0.1 m/s | 1 |
| 2005 | -5.7°C | -9.9°C | -14.2°C | 7.3°C | -20.8°C | 104 mm | 95% | 0.1 m/s | 1 |
| 2004 | -4.6°C | -8.7°C | -12.8°C | 0.0°C | -21.1°C | 100 mm | 97% | 0.2 m/s | 1.1 |
| 2003 | -5.9°C | -10.1°C | -14.4°C | 0.0°C | -21.9°C | 70 mm | 100% | 0.1 m/s | 1.1 |
| 2002 | -7.3°C | -11.7°C | -16.1°C | 0.1°C | -28.7°C | 79 mm | 99% | 0.1 m/s | 1.3 |
| 2001 | -5.9°C | -10.5°C | -15.1°C | 0.0°C | -24.8°C | 37 mm | 100% | 0.1 m/s | 1.3 |
| 2000 | -2.8°C | -6.5°C | -10.2°C | 8.7°C | -19.7°C | 148 mm | 94% | 0.1 m/s | 0.9 |
| 1999 | -2.5°C | -6.7°C | -10.8°C | 9.4°C | -20.9°C | 109 mm | 91% | 0.2 m/s | 1 |
| 1998 | -4.7°C | -8.9°C | -13.0°C | 1.3°C | -23.1°C | 72 mm | 97% | 0.1 m/s | 1 |
| 1997 | -3.9°C | -8.1°C | -12.4°C | 6.3°C | -22.2°C | 99 mm | 89% | 0.1 m/s | 1 |
| 1996 | -4.1°C | -8.8°C | -13.4°C | 7.7°C | -22.3°C | 49 mm | 91% | 0.1 m/s | 1.1 |
| 1995 | -4.5°C | -8.2°C | -11.9°C | 3.1°C | -21.1°C | 108 mm | 98% | 0.1 m/s | 1 |
| 1994 | -5.2°C | -9.7°C | -14.3°C | 5.0°C | -20.0°C | 56 mm | 91% | 0.1 m/s | 1.1 |
| 1993 | -7.4°C | -12.2°C | -17.0°C | 0.0°C | -30.3°C | 73 mm | 99% | 0.1 m/s | 1.2 |
| 1992 | -6.5°C | -10.1°C | -13.8°C | 3.0°C | -23.8°C | 44 mm | 95% | 0.1 m/s | 1 |
| 1991 ❄️ | -8.3°C | -13.2°C | -18.1°C | 0.0°C | -28.3°C | 64 mm | 93% | 0.1 m/s | 0.9 |
| 1990 | -4.3°C | -9.3°C | -14.3°C | 8.6°C | -26.1°C | 81 mm | 94% | 0.1 m/s | 0.9 |
| 1989 | -4.9°C | -9.5°C | -14.0°C | 2.5°C | -20.8°C | 57 mm | 90% | 0.1 m/s | 1.1 |
| 1988 | -4.7°C | -9.1°C | -13.6°C | 1.2°C | -23.7°C | 48 mm | 97% | 0.2 m/s | 0.9 |
| 1987 | -6.6°C | -10.9°C | -15.3°C | 0.0°C | -29.7°C | 65 mm | 99% | 0.1 m/s | 0.8 |
| 1986 | -1.6°C | -6.1°C | -10.7°C | 11.6°C | -21.2°C | 55 mm | 88% | 0.1 m/s | 0.9 |
| 1985 | -6.2°C | -10.2°C | -14.2°C | 0.0°C | -19.8°C | 86 mm | 97% | 0.1 m/s | 1.1 |
| 1984 | -7.3°C | -11.3°C | -15.3°C | 2.0°C | -25.1°C | 132 mm | 98% | 0.1 m/s | 0.9 |
| 1983 🌧️ | -3.1°C | -6.9°C | -10.6°C | 10.6°C | -24.2°C | 167 mm | 94% | 0.1 m/s | — |
| 1982 | -4.9°C | -9.0°C | -13.1°C | 0.1°C | -22.7°C | 134 mm | 100% | 0.1 m/s | — |
| 1981 | -4.0°C | -7.7°C | -11.3°C | 5.7°C | -18.1°C | 105 mm | 97% | 0.1 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -4.3°C with lows near -12.4°C (mean -8.3°C), based on 45 years of NASA POWER data.
January averages 87 mm of rainfall in Grand Falls, about average for rainfall. The wettest on record was 167 mm in 1983.
The hottest January reached 13.1°C in 2018. The coldest dipped to -30.3°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 3.4°C. Daytime highs moved from -5.1°C to -2.1°C and overnight lows from -12.9°C to -9.1°C over the same span.
January is one of the cooler months of the year in Grand Falls and about average for rainfall, so plan for around -4.3°C daytime highs and -12.4°C at night.
Not quite — January is the 2nd coolest month in Grand Falls, averaging -8.3°C.
For January in Grand Falls, pack warm layers and a jacket for chilly mornings, with typical highs of -4.3°C and lows of -12.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 95% — quite humid.
Average wind speed in January is 0.1 m/s. The windiest January on record averaged 0.2 m/s (1988).
The wettest January on record was 1983 with 167 mm. On average, January sees 87 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 Grand Falls 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.
