March is one of the cooler months of the year in Portage La Prairie, with average highs near 0.1°C and lows around -10°C (mean -4.9°C). It is one of the drier months, averaging 31 mm of rainfall and 82% relative humidity across the period.
March is one of the cooler months of the year in Portage La Prairie. Across 45 years of records, the warmest March in Portage La Prairie was 2012 — when the month averaged 3.5°C — while the coldest was 2014 at -11°C. Typical March days reach 0.1°C with nights near -10°C. The long-term March temperature trend is broadly flat.
March is one of the drier months in Portage La Prairie, averaging 31 mm of rainfall. The wettest March on record was 2004 with 98 mm, while the driest was 2019 at 6 mm.
Relative humidity in Portage La Prairie during March averages 82%. The most humid March was 2013 at 93%, and the least humid was 2021 at 66%.
March receives about 4 kWh/m²/day of solar energy in Portage La Prairie. The sunniest March was 2023 at 4.8 kWh/m²/day, and the cloudiest was 1993 at 3.2.
Average wind speed in Portage La Prairie during March is 4.1 m/s. The windiest Marchs were 1990, 2004 and 2012 at 4.8 m/s, while the calmest were 1998 and 2013 at 3.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -5.5°C | -4.6°C | -5.6°C | -4.1°C | -4.9°C | +0.6°C |
| Avg High | -0.5°C | 0.3°C | -0.6°C | 1.1°C | 0.6°C | +1.1°C |
| Avg Low | -10.5°C | -9.5°C | -10.6°C | -9.4°C | -10.4°C | +0.1°C |
| Avg Rain | 29 mm | 31 mm | 45 mm | 25 mm | 18 mm | -11 mm |
March temperatures in Portage La Prairie have stayed relatively stable across the record.
March has ranged from a record low of -38.9°C (2014) to a record high of 24.7°C (2012).
Rainfall in March is one of the drier months, averaging 31 mm, with a wettest year of 98 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows fell 0.1°C per decade, widening the gap between day and night.
A quieter season to visit Portage La Prairie
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Portage La Prairie. That said, March — with days averaging 0.1°C and nights around -10°C (mean -4.9°C) and moderate rainfall (31 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 | 0.7°C | -4.9°C | -10.5°C | 12.3°C | -25.4°C | 18 mm | 78% | 3.9 m/s | 3.9 |
| 2024 | -1.4°C | -6.5°C | -11.6°C | 11.9°C | -22.8°C | 30 mm | 78% | 4.5 m/s | 3.7 |
| 2023 | -3.5°C | -8.8°C | -14.1°C | 5.7°C | -25.6°C | 8 mm | 84% | 4.3 m/s | 4.8 |
| 2022 | -1.8°C | -7.0°C | -12.1°C | 10.3°C | -27.6°C | 30 mm | 86% | 4.2 m/s | 4.3 |
| 2021 | 7.1°C | 1.1°C | -4.9°C | 18.0°C | -24.1°C | 11 mm | 66% | 4.6 m/s | 3.7 |
| 2020 | 2.3°C | -3.5°C | -9.3°C | 16.2°C | -20.6°C | 12 mm | 77% | 4.6 m/s | 4.2 |
| 2019 | -1.2°C | -6.1°C | -11.0°C | 13.9°C | -31.2°C | 6 mm | 85% | 4.1 m/s | 4.5 |
| 2018 | 1.3°C | -3.4°C | -8.1°C | 12.1°C | -16.9°C | 26 mm | 81% | 3.9 m/s | 4.2 |
| 2017 | 0.9°C | -4.8°C | -10.5°C | 14.7°C | -26.4°C | 31 mm | 76% | 4.7 m/s | 4 |
| 2016 | 5.1°C | 0.1°C | -4.9°C | 18.1°C | -22.6°C | 23 mm | 72% | 3.7 m/s | 3.7 |
| 2015 | 3.1°C | -2.4°C | -7.8°C | 17.0°C | -29.3°C | 23 mm | 77% | 4.5 m/s | 3.9 |
| 2014 ❄️ | -5.3°C | -11.0°C | -16.8°C | 4.5°C | -38.9°C | 21 mm | 88% | 3.9 m/s | 4.2 |
| 2013 | -4.7°C | -9.6°C | -14.5°C | 3.7°C | -27.8°C | 28 mm | 93% | 3.3 m/s | 4.7 |
| 2012 🔥 | 9.4°C | 3.5°C | -2.5°C | 24.7°C | -17.7°C | 50 mm | 73% | 4.8 m/s | 3.4 |
| 2011 | -2.8°C | -8.2°C | -13.5°C | 6.9°C | -32.7°C | 29 mm | 87% | 3.6 m/s | 4.2 |
| 2010 | 5.1°C | 0.6°C | -4.0°C | 19.6°C | -13.2°C | 12 mm | 80% | 3.6 m/s | 3.7 |
| 2009 | -3.4°C | -8.3°C | -13.2°C | 7.2°C | -27.4°C | 46 mm | 90% | 4.4 m/s | 4 |
| 2008 | -1.3°C | -5.9°C | -10.5°C | 7.5°C | -29.1°C | 32 mm | 80% | 4.3 m/s | 4.1 |
| 2007 | 1.7°C | -3.6°C | -8.9°C | 21.0°C | -30.7°C | 65 mm | 84% | 4.3 m/s | 3.8 |
| 2006 | -1.6°C | -6.0°C | -10.4°C | 9.0°C | -17.8°C | 69 mm | 93% | 3.4 m/s | 3.5 |
| 2005 | -1.7°C | -6.7°C | -11.7°C | 9.7°C | -23.4°C | 24 mm | 91% | 3.5 m/s | 4.2 |
| 2004 🌧️ | 1.1°C | -4.2°C | -9.6°C | 15.1°C | -23.7°C | 98 mm | 84% | 4.8 m/s | 4.2 |
| 2003 | -1.5°C | -7.1°C | -12.7°C | 15.9°C | -34.7°C | 21 mm | 82% | 3.9 m/s | 3.8 |
| 2002 | -4.7°C | -9.5°C | -14.4°C | 10.7°C | -23.2°C | 20 mm | 75% | 4.2 m/s | 4.1 |
| 2001 | 0.0°C | -4.9°C | -9.8°C | 8.6°C | -18.7°C | 32 mm | 86% | 3.8 m/s | 4.2 |
| 2000 | 5.3°C | 0.0°C | -5.2°C | 15.6°C | -18.2°C | 43 mm | 72% | 4.1 m/s | 3.7 |
| 1999 | 3.1°C | -1.7°C | -6.6°C | 15.8°C | -21.7°C | 26 mm | 77% | 3.9 m/s | 4.4 |
| 1998 | -0.8°C | -5.8°C | -10.8°C | 15.3°C | -29.9°C | 12 mm | 86% | 3.3 m/s | 4.6 |
| 1997 | -3.9°C | -8.2°C | -12.6°C | 11.0°C | -28.1°C | 38 mm | 93% | 3.8 m/s | 4.5 |
| 1996 | -6.0°C | -10.8°C | -15.7°C | 2.0°C | -31.0°C | 35 mm | 90% | 4 m/s | 4.4 |
| 1995 | -0.1°C | -4.6°C | -9.0°C | 11.5°C | -35.6°C | 60 mm | 85% | 4.2 m/s | 3.7 |
| 1994 | 3.7°C | -1.1°C | -5.9°C | 13.9°C | -17.1°C | 16 mm | 73% | 4.5 m/s | 4 |
| 1993 | 3.5°C | -1.8°C | -7.2°C | 19.8°C | -21.0°C | 19 mm | 74% | 4.4 m/s | 3.2 |
| 1992 | 1.1°C | -3.7°C | -8.5°C | 9.7°C | -21.1°C | 18 mm | 81% | 3.6 m/s | 4.1 |
| 1991 | 1.5°C | -3.7°C | -8.9°C | 15.7°C | -29.3°C | 32 mm | 76% | 4.1 m/s | 3.6 |
| 1990 | 0.7°C | -4.5°C | -9.7°C | 17.2°C | -22.3°C | 55 mm | 82% | 4.8 m/s | 3.6 |
| 1989 | -4.9°C | -10.1°C | -15.3°C | 6.9°C | -34.9°C | 29 mm | 91% | 3.4 m/s | 3.6 |
| 1988 | -0.1°C | -5.2°C | -10.4°C | 10.4°C | -22.6°C | 34 mm | 77% | 4.5 m/s | 3.7 |
| 1987 | -0.8°C | -5.1°C | -9.4°C | 7.4°C | -26.2°C | 28 mm | 88% | 3.8 m/s | 3.9 |
| 1986 | 2.8°C | -2.4°C | -7.7°C | 17.3°C | -25.1°C | 30 mm | 81% | 4.2 m/s | 3.8 |
| 1985 | 1.8°C | -3.2°C | -8.1°C | 12.0°C | -21.1°C | 12 mm | 83% | 4.4 m/s | 4 |
| 1984 | -1.8°C | -7.3°C | -12.8°C | 12.1°C | -30.3°C | 16 mm | 82% | 3.6 m/s | 3.5 |
| 1983 | -2.7°C | -6.9°C | -11.1°C | 9.4°C | -20.6°C | 67 mm | 92% | 4 m/s | — |
| 1982 | -3.4°C | -8.5°C | -13.7°C | 10.3°C | -26.9°C | 35 mm | 88% | 4.6 m/s | — |
| 1981 | 4.6°C | -0.5°C | -5.6°C | 15.3°C | -16.7°C | 12 mm | 73% | 3.7 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 0.1°C with lows near -10°C (mean -4.9°C), based on 45 years of NASA POWER data.
March averages 31 mm of rainfall in Portage La Prairie, one of the drier months. The wettest on record was 98 mm in 2004.
The hottest March reached 24.7°C in 2012. The coldest dipped to -38.9°C in 2014.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Daytime highs rose from -0.3°C to 0.2°C while overnight lows fell from -10.3°C to -10.6°C, widening the gap between day and night.
March is one of the cooler months of the year in Portage La Prairie and one of the drier months, so plan for around 0.1°C daytime highs and -10°C at night.
Not quite — March is the 4th coolest month in Portage La Prairie, averaging -4.9°C.
For March in Portage La Prairie, pack warm layers and a jacket for chilly mornings, with typical highs of 0.1°C and lows of -10°C.
Relative humidity in March averages 82% — quite humid.
Average wind speed in March is 4.1 m/s. The windiest March on record averaged 4.8 m/s (1990).
The wettest March on record was 2004 with 98 mm. On average, March sees 31 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 Portage La Prairie behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
