Thunder Bay Weather in March
Average highs run from -5°C on March 1 to 4°C on March 31, and lows from -14°C to -5°C. Normal precipitation for the month is 31 mm over about 6 wet days.
March day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
March at a glance
- Average high
- 0°C
- Average low
- -10°C
- Precipitation
- 31 mm
- Reanalysis high
- 21°CMar 18, 2012
- Reanalysis low
- -29°CMar 2, 2014
- Daylight
- 11 h 03 min to 12 h 49 min
- Cloud cover
- 67%
- Humidity
- 84%
- Dew point
- -8°C
- Wind
- 11.5 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Mar 1 | -5°C | -14°C | 6°C 1993 | -26°C 2014 | 21% |
| Mar 2 | -5°C | -14°C | 5°C 1993 | -29°C 2014 | 21% |
| Mar 3 | -5°C | -14°C | 8°C 2000 | -26°C 2014 | 21% |
| Mar 4 | -4°C | -14°C | 9°C 2000 | -27°C 2008 | 21% |
| Mar 5 | -4°C | -13°C | 8°C 2000 | -28°C 2014 | 21% |
| Mar 6 | -4°C | -13°C | 14°C 2000 | -29°C 1996 | 21% |
| Mar 7 | -3°C | -12°C | 14°C 2000 | -28°C 2008 | 20% |
| Mar 8 | -3°C | -12°C | 13°C 2010 | -21°C 2003 | 19% |
| Mar 9 | -3°C | -12°C | 10°C 2010 | -21°C 2003 | 19% |
| Mar 10 | -2°C | -12°C | 9°C 2010 | -21°C 2017 | 20% |
| Mar 11 | -2°C | -11°C | 12°C 2012 | -23°C 2001 | 21% |
| Mar 12 | -1°C | -11°C | 12°C 2016 | -24°C 2009 | 22% |
| Mar 13 | -1°C | -10°C | 13°C 1995 | -22°C 1992 | 22% |
| Mar 14 | -1°C | -10°C | 18°C 2012 | -23°C 1992 | 21% |
| Mar 15 | 0°C | -10°C | 16°C 2010 | -23°C 2014 | 20% |
| Mar 16 | 0°C | -10°C | 13°C 2012 | -28°C 2014 | 19% |
| Mar 17 | 0°C | -9°C | 20°C 2012 | -24°C 2013 | 20% |
| Mar 18 | 0°C | -9°C | 21°C 2012 | -19°C 1993 | 20% |
| Mar 19 | 1°C | -9°C | 20°C 2012 | -16°C 2007 | 21% |
| Mar 20 | 1°C | -8°C | 19°C 2012 | -18°C 1996 | 22% |
| Mar 21 | 1°C | -8°C | 13°C 2012 | -22°C 1996 | 22% |
| Mar 22 | 2°C | -8°C | 18°C 2012 | -17°C 1997 | 23% |
| Mar 23 | 2°C | -8°C | 13°C 2000 | -20°C 1997 | 24% |
| Mar 24 | 2°C | -7°C | 15°C 2007 | -21°C 2014 | 26% |
| Mar 25 | 2°C | -7°C | 12°C 1993 | -19°C 2001 | 26% |
| Mar 26 | 3°C | -7°C | 19°C 2007 | -22°C 1996 | 26% |
| Mar 27 | 3°C | -6°C | 11°C 2007 | -20°C 1996 | 27% |
| Mar 28 | 3°C | -6°C | 14°C 1993 | -13°C 1996 | 28% |
| Mar 29 | 3°C | -6°C | 15°C 1993 | -14°C 1996 | 28% |
| Mar 30 | 4°C | -6°C | 11°C 1999 | -13°C 2018 | 30% |
| Mar 31 | 4°C | -5°C | 18°C 2010 | -11°C 2003 | 31% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 7:38 AM, sunset 6:41 PM
- March 31
- sunrise 7:37 AM, sunset 8:26 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.