February is one of the cooler months of the year in Thunder Bay, with average highs near -8°C and lows around -17.2°C (mean -12.6°C). It is one of the drier months, averaging 21 mm of rainfall and 96% relative humidity across the period.
February is one of the cooler months of the year in Thunder Bay. Across 45 years of records, the warmest February in Thunder Bay was 1998 — when the month averaged -3.4°C — while the coldest was 2015 at -20.2°C. Typical February days reach -8°C with nights near -17.2°C. The long-term trend is cooling, about 0.2°C per decade.
February is one of the drier months in Thunder Bay, averaging 21 mm of rainfall. The wettest February on record was 1981 with 63 mm, while the driest was 1993 at 4 mm.
Relative humidity in Thunder Bay during February averages 96%. The most humid Februarys were 1982, 1985 and 1996 at 99%, and the least humid was 2024 at 80%.
February receives about 2 kWh/m²/day of solar energy in Thunder Bay. The sunniest Februarys were 2010 and 2022 at 2.3 kWh/m²/day, and the cloudiest was 2019 at 1.7.
Average wind speed in Thunder Bay during February is 1.4 m/s. The windiest February was 1995 at 1.7 m/s, while the calmest was 1986 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -12.9°C | -11.6°C | -12.4°C | -13.4°C | -12.6°C | +0.3°C |
| Avg High | -8.5°C | -7.0°C | -7.9°C | -8.8°C | -7.6°C | +0.9°C |
| Avg Low | -17.3°C | -16.3°C | -17.0°C | -18.1°C | -17.4°C | -0.1°C |
| Avg Rain | 27 mm | 18 mm | 20 mm | 20 mm | 17 mm | -10 mm |
February temperatures in Thunder Bay have stayed relatively stable across the record.
February has ranged from a record low of -39.6°C (1996) to a record high of 10.8°C (2000).
Rainfall in February is one of the drier months, averaging 21 mm, with a wettest year of 63 mm.
A quieter season to visit Thunder Bay
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Thunder Bay. That said, February — with days averaging -8°C and nights around -17.2°C (mean -12.6°C) and low rainfall (21 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 | -8.5°C | -12.9°C | -17.3°C | 3.2°C | -25.3°C | 19 mm | 91% | 1.6 m/s | 2.1 |
| 2024 | -1.3°C | -5.9°C | -10.5°C | 4.9°C | -20.1°C | 12 mm | 80% | 1.3 m/s | 2.1 |
| 2023 | -7.2°C | -12.2°C | -17.1°C | 0.9°C | -31.5°C | 27 mm | 97% | 1.5 m/s | 2.1 |
| 2022 | -10.9°C | -16.6°C | -22.3°C | -2.5°C | -33.1°C | 22 mm | 95% | 1.6 m/s | 2.3 |
| 2021 | -10.3°C | -14.9°C | -19.5°C | 1.6°C | -33.6°C | 12 mm | 96% | 1.4 m/s | 2 |
| 2020 | -7.7°C | -12.9°C | -18.0°C | 0.5°C | -31.4°C | 9 mm | 98% | 1.5 m/s | 2.2 |
| 2019 | -10.8°C | -15.2°C | -19.7°C | -1.7°C | -31.4°C | 29 mm | 99% | 1.3 m/s | 1.7 |
| 2018 | -10.1°C | -15.2°C | -20.2°C | 0.5°C | -31.4°C | 22 mm | 96% | 1.3 m/s | 2.1 |
| 2017 | -5.0°C | -8.8°C | -12.6°C | 6.2°C | -20.1°C | 27 mm | 91% | 1.6 m/s | 2 |
| 2016 | -7.7°C | -12.5°C | -17.3°C | 0.7°C | -27.2°C | 26 mm | 97% | 1.4 m/s | 1.9 |
| 2015 ❄️ | -14.7°C | -20.2°C | -25.6°C | -7.1°C | -35.5°C | 18 mm | 97% | 1.3 m/s | 2 |
| 2014 | -12.5°C | -16.9°C | -21.3°C | -0.6°C | -31.4°C | 26 mm | 98% | 1.4 m/s | 1.9 |
| 2013 | -8.8°C | -13.9°C | -18.9°C | 1.0°C | -32.4°C | 17 mm | 96% | 1.4 m/s | 1.9 |
| 2012 | -3.6°C | -8.0°C | -12.5°C | 1.7°C | -24.3°C | 11 mm | 94% | 1.4 m/s | 1.8 |
| 2011 | -8.1°C | -12.5°C | -16.9°C | 0.8°C | -24.9°C | 15 mm | 98% | 1.5 m/s | 2 |
| 2010 | -6.6°C | -11.2°C | -15.7°C | -0.6°C | -24.1°C | 7 mm | 95% | 1.5 m/s | 2.3 |
| 2009 | -7.7°C | -12.0°C | -16.2°C | 0.7°C | -28.8°C | 21 mm | 97% | 1.4 m/s | 1.9 |
| 2008 | -9.4°C | -14.6°C | -19.7°C | 0.2°C | -29.3°C | 10 mm | 97% | 1.3 m/s | 2.1 |
| 2007 | -12.8°C | -16.9°C | -21.1°C | 0.1°C | -35.3°C | 17 mm | 97% | 1.6 m/s | 2.1 |
| 2006 | -9.0°C | -13.6°C | -18.3°C | -0.3°C | -27.8°C | 10 mm | 96% | 1.5 m/s | 2.2 |
| 2005 | -6.3°C | -10.7°C | -15.0°C | 0.3°C | -24.7°C | 20 mm | 98% | 1.3 m/s | 1.9 |
| 2004 | -5.1°C | -9.3°C | -13.5°C | 1.0°C | -26.4°C | 24 mm | 98% | 1.3 m/s | 1.9 |
| 2003 | -10.7°C | -15.5°C | -20.3°C | -0.2°C | -28.7°C | 18 mm | 94% | 1.5 m/s | 2.1 |
| 2002 | -4.2°C | -9.1°C | -14.1°C | 4.9°C | -24.7°C | 17 mm | 90% | 1.6 m/s | 1.9 |
| 2001 | -9.9°C | -14.1°C | -18.3°C | -2.7°C | -29.1°C | 49 mm | 99% | 1.5 m/s | 2 |
| 2000 | -3.7°C | -8.4°C | -13.2°C | 10.8°C | -25.2°C | 16 mm | 94% | 1.4 m/s | 1.9 |
| 1999 | -3.8°C | -8.0°C | -12.2°C | 1.2°C | -23.5°C | 34 mm | 95% | 1.6 m/s | 1.8 |
| 1998 🔥 | 0.7°C | -3.4°C | -7.4°C | 6.5°C | -20.7°C | 11 mm | 89% | 1.3 m/s | 1.9 |
| 1997 | -8.0°C | -13.4°C | -18.9°C | 0.2°C | -31.2°C | 12 mm | 99% | 1.3 m/s | 2 |
| 1996 | -10.2°C | -15.1°C | -19.9°C | -0.1°C | -39.6°C | 45 mm | 99% | 1.4 m/s | 1.9 |
| 1995 | -8.8°C | -14.0°C | -19.1°C | 0.2°C | -29.6°C | 20 mm | 93% | 1.7 m/s | 2.1 |
| 1994 | -11.0°C | -15.4°C | -19.8°C | 3.5°C | -31.9°C | 8 mm | 89% | 1.3 m/s | 2 |
| 1993 | -7.9°C | -12.5°C | -17.2°C | 1.1°C | -23.4°C | 4 mm | 90% | 1.3 m/s | 2.2 |
| 1992 | -6.0°C | -10.4°C | -14.9°C | 0.2°C | -27.7°C | 18 mm | 97% | 1.3 m/s | 1.8 |
| 1991 | -6.6°C | -10.9°C | -15.2°C | 0.3°C | -25.6°C | 17 mm | 98% | 1.3 m/s | 1.9 |
| 1990 | -8.1°C | -13.2°C | -18.3°C | 0.5°C | -32.1°C | 15 mm | 98% | 1.5 m/s | 1.9 |
| 1989 | -12.6°C | -17.4°C | -22.1°C | -2.4°C | -34.3°C | 10 mm | 99% | 1.6 m/s | 2.1 |
| 1988 | -11.2°C | -16.6°C | -22.0°C | 0.6°C | -32.0°C | 10 mm | 97% | 1.5 m/s | 2.1 |
| 1987 | -2.8°C | -6.9°C | -11.1°C | 4.2°C | -25.9°C | 15 mm | 93% | 1.3 m/s | 2 |
| 1986 | -7.8°C | -12.7°C | -17.5°C | -1.8°C | -28.5°C | 36 mm | 98% | 1.1 m/s | 1.9 |
| 1985 | -11.3°C | -16.0°C | -20.8°C | 0.4°C | -36.5°C | 27 mm | 99% | 1.3 m/s | 2 |
| 1984 | -4.8°C | -8.6°C | -12.4°C | 0.3°C | -30.5°C | 33 mm | 99% | 1.3 m/s | 1.8 |
| 1983 | -6.6°C | -10.6°C | -14.6°C | 0.1°C | -29.0°C | 33 mm | 99% | 1.3 m/s | — |
| 1982 | -11.1°C | -15.8°C | -20.5°C | 0.0°C | -32.7°C | 18 mm | 99% | 1.3 m/s | — |
| 1981 🌧️ | -7.9°C | -11.4°C | -14.9°C | 1.2°C | -33.1°C | 63 mm | 99% | 1.4 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around -8°C with lows near -17.2°C (mean -12.6°C), based on 45 years of NASA POWER data.
February averages 21 mm of rainfall in Thunder Bay, one of the drier months. The wettest on record was 63 mm in 1981.
The hottest February reached 10.8°C in 2000. The coldest dipped to -39.6°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have held steady by about 0°C — but days and nights have moved in opposite directions. Daytime highs rose from -8.3°C to -7.6°C while overnight lows fell from -16.6°C to -17.3°C, widening the gap between day and night.
February is one of the cooler months of the year in Thunder Bay and one of the drier months, so plan for around -8°C daytime highs and -17.2°C at night.
Not quite — February is the 2nd coolest month in Thunder Bay, averaging -12.6°C.
For February in Thunder Bay, pack warm layers and a jacket for chilly mornings, with typical highs of -8°C and lows of -17.2°C.
Relative humidity in February averages 96% — quite humid.
Average wind speed in February is 1.4 m/s. The windiest February on record averaged 1.7 m/s (1995).
The wettest February on record was 1981 with 63 mm. On average, February sees 21 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 Thunder Bay behaves each February, 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 February specifically, along with year-by-year records and how the month has changed over the decades.
