March is one of the cooler months of the year in Windsor, with average highs near 6.5°C and lows around -3.4°C (mean 1.6°C). It is one of the drier months, averaging 56 mm of rainfall and 78% relative humidity across the period.
March is one of the cooler months of the year in Windsor. Across 45 years of records, the warmest March in Windsor was 2012 — when the month averaged 8°C — while the coldest was 2014 at -3.4°C. Typical March days reach 6.5°C with nights near -3.4°C. The long-term trend is warming, about 0.3°C per decade.
March is one of the drier months in Windsor, averaging 56 mm of rainfall. The wettest March on record was 2016 with 109 mm, while the driest was 2013 at 19 mm.
Relative humidity in Windsor during March averages 78%. The most humid March was 1993 at 86%, and the least humid was 2021 at 71%.
March receives about 3.5 kWh/m²/day of solar energy in Windsor. The sunniest March was 2021 at 4.6 kWh/m²/day, and the cloudiest were 2004 and 2008 at 2.9.
Average wind speed in Windsor during March is 4.1 m/s. The windiest March was 1985 at 4.8 m/s, while the calmest was 1995 at 3.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 1.0°C | 1.1°C | 1.7°C | 1.3°C | 3.3°C | +2.3°C |
| Avg High | 6.0°C | 5.9°C | 6.5°C | 6.1°C | 8.6°C | +2.6°C |
| Avg Low | -4.0°C | -3.7°C | -3.2°C | -3.6°C | -2.0°C | +2°C |
| Avg Rain | 56 mm | 55 mm | 52 mm | 57 mm | 62 mm | +6 mm |
March temperatures in Windsor have risen by about 2.6°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -21.3°C (2014) to a record high of 27.2°C (2012).
Rainfall in March is one of the drier months, averaging 56 mm, with a wettest year of 109 mm.
A quieter season to visit Windsor
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Windsor. That said, March — with days averaging 6.5°C and nights around -3.4°C (mean 1.6°C) and moderate rainfall (56 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 | 10.2°C | 4.4°C | -1.4°C | 21.4°C | -8.5°C | 58 mm | 73% | 4.7 m/s | 3.6 |
| 2024 | 9.3°C | 4.2°C | -0.9°C | 20.0°C | -6.6°C | 56 mm | 78% | 4 m/s | 3.3 |
| 2023 | 6.2°C | 1.6°C | -3.0°C | 14.1°C | -7.7°C | 82 mm | 78% | 4.1 m/s | 3.6 |
| 2022 | 7.1°C | 2.2°C | -2.8°C | 19.8°C | -11.8°C | 61 mm | 78% | 4.2 m/s | 3.5 |
| 2021 | 10.3°C | 4.1°C | -2.0°C | 20.0°C | -7.8°C | 47 mm | 71% | 4.2 m/s | 4.6 |
| 2020 | 8.7°C | 3.5°C | -1.8°C | 16.8°C | -8.9°C | 66 mm | 81% | 3.9 m/s | 3.3 |
| 2019 | 4.8°C | -0.1°C | -5.0°C | 17.0°C | -15.1°C | 58 mm | 77% | 3.9 m/s | 3.6 |
| 2018 | 4.2°C | 0.0°C | -4.2°C | 11.7°C | -8.1°C | 47 mm | 78% | 4 m/s | 3.8 |
| 2017 | 5.4°C | 0.9°C | -3.5°C | 21.1°C | -10.5°C | 92 mm | 77% | 4.6 m/s | 3.4 |
| 2016 🌧️ | 9.2°C | 4.1°C | -1.1°C | 18.3°C | -8.8°C | 109 mm | 80% | 3.8 m/s | 3.2 |
| 2015 | 4.6°C | -0.7°C | -6.1°C | 15.5°C | -20.4°C | 23 mm | 76% | 3.6 m/s | 3.7 |
| 2014 ❄️ | 1.8°C | -3.4°C | -8.6°C | 12.2°C | -21.3°C | 33 mm | 78% | 4 m/s | 3.5 |
| 2013 | 3.8°C | -0.2°C | -4.2°C | 14.4°C | -12.5°C | 19 mm | 79% | 4.1 m/s | 3.3 |
| 2012 🔥 | 13.3°C | 8.0°C | 2.7°C | 27.2°C | -5.6°C | 66 mm | 82% | 4 m/s | 3.7 |
| 2011 | 4.7°C | 0.0°C | -4.7°C | 17.5°C | -10.5°C | 85 mm | 81% | 3.9 m/s | 3.1 |
| 2010 | 9.7°C | 4.2°C | -1.3°C | 18.4°C | -5.0°C | 34 mm | 76% | 3.4 m/s | 4 |
| 2009 | 7.5°C | 2.1°C | -3.2°C | 17.7°C | -13.0°C | 93 mm | 76% | 3.8 m/s | 4 |
| 2008 | 4.3°C | 0.1°C | -4.1°C | 14.4°C | -12.8°C | 65 mm | 81% | 4 m/s | 2.9 |
| 2007 | 7.8°C | 2.9°C | -2.0°C | 22.3°C | -15.2°C | 67 mm | 78% | 4.4 m/s | 3.5 |
| 2006 | 6.7°C | 2.0°C | -2.8°C | 18.3°C | -10.0°C | 59 mm | 77% | 3.8 m/s | 3.6 |
| 2005 | 4.1°C | -0.6°C | -5.4°C | 16.0°C | -15.2°C | 21 mm | 80% | 3.6 m/s | 3.3 |
| 2004 | 7.6°C | 3.4°C | -0.7°C | 19.0°C | -6.9°C | 66 mm | 80% | 4.4 m/s | 2.9 |
| 2003 | 6.9°C | 0.9°C | -5.1°C | 20.3°C | -19.7°C | 52 mm | 79% | 3.7 m/s | 3.5 |
| 2002 | 5.1°C | 0.5°C | -4.1°C | 16.5°C | -10.9°C | 46 mm | 79% | 4.4 m/s | 3.2 |
| 2001 | 4.8°C | 0.4°C | -3.9°C | 11.9°C | -10.8°C | 20 mm | 76% | 3.8 m/s | 3.5 |
| 2000 | 10.5°C | 4.9°C | -0.6°C | 23.2°C | -6.0°C | 32 mm | 73% | 3.9 m/s | 3.5 |
| 1999 | 5.6°C | 0.2°C | -5.2°C | 19.8°C | -15.0°C | 30 mm | 76% | 4.2 m/s | 3.9 |
| 1998 | 6.2°C | 2.3°C | -1.6°C | 22.3°C | -12.0°C | 97 mm | 83% | 4.6 m/s | 3.3 |
| 1997 | 5.4°C | 0.9°C | -3.5°C | 17.7°C | -11.5°C | 74 mm | 80% | 4.3 m/s | 3.2 |
| 1996 | 3.3°C | -1.9°C | -7.0°C | 15.3°C | -16.5°C | 34 mm | 75% | 4.6 m/s | 3.7 |
| 1995 | 7.6°C | 2.1°C | -3.4°C | 19.9°C | -13.9°C | 39 mm | 78% | 3.3 m/s | 3.1 |
| 1994 | 5.9°C | 0.9°C | -4.0°C | 18.8°C | -10.5°C | 52 mm | 78% | 3.7 m/s | 3.7 |
| 1993 | 4.0°C | -0.1°C | -4.1°C | 17.7°C | -14.0°C | 54 mm | 86% | 3.7 m/s | 3.2 |
| 1992 | 5.4°C | 0.4°C | -4.6°C | 15.6°C | -14.0°C | 71 mm | 79% | 3.7 m/s | 3.6 |
| 1991 | 8.0°C | 3.0°C | -2.0°C | 18.6°C | -6.5°C | 51 mm | 80% | 4.7 m/s | 3.3 |
| 1990 | 7.4°C | 2.7°C | -1.9°C | 21.1°C | -11.7°C | 49 mm | 79% | 3.8 m/s | 3.2 |
| 1989 | 5.6°C | 0.4°C | -4.8°C | 20.9°C | -14.3°C | 53 mm | 78% | 4.1 m/s | 3.3 |
| 1988 | 6.0°C | 1.0°C | -3.9°C | 17.3°C | -10.0°C | 32 mm | 76% | 4.1 m/s | 3.2 |
| 1987 | 8.0°C | 2.7°C | -2.6°C | 20.8°C | -11.3°C | 41 mm | 77% | 3.9 m/s | 3.7 |
| 1986 | 7.1°C | 1.5°C | -4.1°C | 20.6°C | -17.7°C | 46 mm | 82% | 4.3 m/s | 3.6 |
| 1985 | 7.2°C | 2.2°C | -2.8°C | 15.8°C | -7.3°C | 100 mm | 79% | 4.8 m/s | 3.3 |
| 1984 | 2.0°C | -2.5°C | -7.0°C | 9.3°C | -16.3°C | 81 mm | 79% | 4.4 m/s | 3.5 |
| 1983 | 7.3°C | 2.4°C | -2.4°C | 16.5°C | -12.4°C | 56 mm | 80% | 3.7 m/s | — |
| 1982 | 4.7°C | 0.0°C | -4.8°C | 16.0°C | -13.1°C | 78 mm | 82% | 4.3 m/s | — |
| 1981 | 6.2°C | 1.4°C | -3.4°C | 19.4°C | -8.5°C | 21 mm | 74% | 4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 6.5°C with lows near -3.4°C (mean 1.6°C), based on 45 years of NASA POWER data.
March averages 56 mm of rainfall in Windsor, one of the drier months. The wettest on record was 109 mm in 2016.
The hottest March reached 27.2°C in 2012. The coldest dipped to -21.3°C in 2014.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 2.6°C. Daytime highs moved from 5.5°C to 8.6°C and overnight lows from -4.1°C to -2°C over the same span.
March is one of the cooler months of the year in Windsor and one of the drier months, so plan for around 6.5°C daytime highs and -3.4°C at night.
Not quite — March is the 4th coolest month in Windsor, averaging 1.6°C.
For March in Windsor, pack warm layers and a jacket for chilly mornings, with typical highs of 6.5°C and lows of -3.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 78% — quite humid.
Average wind speed in March is 4.1 m/s. The windiest March on record averaged 4.8 m/s (1985).
The wettest March on record was 2016 with 109 mm. On average, March sees 56 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 Windsor 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.
