March is one of the cooler months of the year in Grand Falls, with average highs near -0.4°C and lows around -8.8°C (mean -4.6°C). It is about average for rainfall, averaging 80 mm of rainfall and 91% relative humidity across the period.
March is one of the cooler months of the year in Grand Falls. Across 45 years of records, the warmest March in Grand Falls was 1999 — when the month averaged -0.3°C — while the coldest was 2014 at -8.3°C. Typical March days reach -0.4°C with nights near -8.8°C. The long-term trend is warming, about 0.4°C per decade.
March is about average for rainfall in Grand Falls, averaging 80 mm of rainfall. The wettest March on record was 1981 with 150 mm, while the driest was 1996 at 36 mm.
Relative humidity in Grand Falls during March averages 91%. The most humid Marchs were 1982, 2001 and 2004 at 100%, and the least humid was 2002 at 81%.
March receives about 2.9 kWh/m²/day of solar energy in Grand Falls. The sunniest March was 2019 at 3.4 kWh/m²/day, and the cloudiest were 1992, 1995 and 2013, among others at 2.5.
Average wind speed in Grand Falls during March is 0.1 m/s. The windiest Marchs were 2020, 2022 and 2024, among others at 0.2 m/s, while the calmest were 2021, 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 | -5.2°C | -4.6°C | -4.7°C | -4.6°C | -3.3°C | +1.9°C |
| Avg High | -0.9°C | -0.1°C | -0.6°C | -0.6°C | 0.8°C | +1.7°C |
| Avg Low | -9.4°C | -9.2°C | -8.9°C | -8.6°C | -7.4°C | +2°C |
| Avg Rain | 80 mm | 81 mm | 86 mm | 77 mm | 78 mm | -2 mm |
March temperatures in Grand Falls have risen by about 2.4°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -29.4°C (1982) to a record high of 16.2°C (1999).
Rainfall in March is about average for rainfall, averaging 80 mm, with a wettest year of 150 mm.
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, March — with days averaging -0.4°C and nights around -8.8°C (mean -4.6°C) and higher rainfall (80 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 | 2.3°C | -2.0°C | -6.3°C | 15.4°C | -15.5°C | 93 mm | 85% | 0.1 m/s | 2.9 |
| 2024 | 2.4°C | -1.3°C | -5.0°C | 9.6°C | -11.4°C | 109 mm | 87% | 0.2 m/s | 2.8 |
| 2023 | -0.3°C | -3.5°C | -6.7°C | 5.0°C | -19.1°C | 63 mm | 91% | 0.1 m/s | 3.2 |
| 2022 | 0.5°C | -3.5°C | -7.5°C | 11.4°C | -14.4°C | 86 mm | 85% | 0.2 m/s | 3.1 |
| 2021 | 1.3°C | -3.5°C | -8.2°C | 14.1°C | -15.8°C | 55 mm | 90% | 0.1 m/s | 3.1 |
| 2020 | -1.6°C | -6.1°C | -10.7°C | 3.8°C | -19.9°C | 59 mm | 91% | 0.2 m/s | 3 |
| 2019 | -0.5°C | -5.0°C | -9.5°C | 12.3°C | -17.4°C | 48 mm | 88% | 0.1 m/s | 3.4 |
| 2018 | 1.2°C | -1.6°C | -4.4°C | 6.8°C | -14.1°C | 75 mm | 93% | 0.1 m/s | 2.6 |
| 2017 | -1.7°C | -5.6°C | -9.5°C | 4.0°C | -16.5°C | 148 mm | 95% | 0.1 m/s | 2.9 |
| 2016 | -1.2°C | -6.1°C | -11.0°C | 6.3°C | -18.3°C | 80 mm | 88% | 0.2 m/s | 3.2 |
| 2015 | -3.2°C | -7.9°C | -12.6°C | 5.2°C | -20.9°C | 84 mm | 94% | 0.2 m/s | 3.2 |
| 2014 ❄️ | -3.6°C | -8.3°C | -13.1°C | 2.3°C | -22.5°C | 72 mm | 94% | 0.1 m/s | 3.2 |
| 2013 | 2.0°C | -0.7°C | -3.5°C | 6.9°C | -8.6°C | 87 mm | 90% | 0.1 m/s | 2.5 |
| 2012 | 0.0°C | -4.3°C | -8.7°C | 9.0°C | -21.6°C | 63 mm | 86% | 0.2 m/s | 2.9 |
| 2011 | -0.2°C | -3.8°C | -7.5°C | 6.2°C | -20.5°C | 65 mm | 92% | 0.2 m/s | 3 |
| 2010 | 1.6°C | -2.2°C | -6.0°C | 9.1°C | -11.0°C | 49 mm | 88% | 0.1 m/s | 3.2 |
| 2009 | 0.1°C | -4.1°C | -8.3°C | 8.4°C | -14.4°C | 45 mm | 82% | 0.1 m/s | 3.1 |
| 2008 | -2.6°C | -7.3°C | -12.1°C | 4.9°C | -21.1°C | 109 mm | 93% | 0.1 m/s | 3.1 |
| 2007 | 0.7°C | -4.0°C | -8.7°C | 8.8°C | -16.6°C | 44 mm | 88% | 0.2 m/s | 3 |
| 2006 | 0.3°C | -3.2°C | -6.7°C | 5.2°C | -17.6°C | 78 mm | 96% | 0.1 m/s | 2.6 |
| 2005 | -0.4°C | -4.2°C | -8.0°C | 7.2°C | -19.7°C | 135 mm | 91% | 0.2 m/s | 2.8 |
| 2004 | -2.2°C | -6.6°C | -11.1°C | 0.0°C | -19.5°C | 86 mm | 100% | 0.1 m/s | 3.1 |
| 2003 | -2.6°C | -7.0°C | -11.5°C | 11.1°C | -21.7°C | 67 mm | 91% | 0.1 m/s | 3 |
| 2002 | 0.3°C | -4.3°C | -9.0°C | 8.9°C | -16.2°C | 80 mm | 81% | 0.2 m/s | 3.2 |
| 2001 | -1.6°C | -4.9°C | -8.2°C | 0.1°C | -18.2°C | 83 mm | 100% | 0.1 m/s | 2.7 |
| 2000 | 2.0°C | -1.9°C | -5.8°C | 12.7°C | -16.3°C | 128 mm | 91% | 0.1 m/s | 2.8 |
| 1999 🔥 | 3.5°C | -0.3°C | -4.0°C | 16.2°C | -12.6°C | 97 mm | 91% | 0.1 m/s | 2.6 |
| 1998 | 0.5°C | -3.1°C | -6.8°C | 6.7°C | -14.9°C | 95 mm | 90% | 0.2 m/s | 2.8 |
| 1997 | -2.7°C | -7.6°C | -12.5°C | 5.6°C | -27.2°C | 83 mm | 89% | 0.1 m/s | 3.3 |
| 1996 | 1.8°C | -2.7°C | -7.2°C | 9.6°C | -16.6°C | 36 mm | 83% | 0.1 m/s | 2.8 |
| 1995 | -0.1°C | -4.4°C | -8.7°C | 8.6°C | -18.2°C | 101 mm | 91% | 0.2 m/s | 2.5 |
| 1994 | -0.1°C | -4.9°C | -9.6°C | 7.4°C | -24.1°C | 119 mm | 93% | 0.1 m/s | 3.1 |
| 1993 | -1.6°C | -6.7°C | -11.8°C | 9.8°C | -20.0°C | 95 mm | 95% | 0.1 m/s | 3 |
| 1992 | -1.3°C | -5.8°C | -10.4°C | 11.1°C | -22.5°C | 66 mm | 90% | 0.1 m/s | 2.5 |
| 1991 | 1.3°C | -3.1°C | -7.5°C | 9.3°C | -16.7°C | 66 mm | 86% | 0.1 m/s | 2.5 |
| 1990 | -2.6°C | -7.9°C | -13.1°C | 4.5°C | -25.6°C | 47 mm | 89% | 0.2 m/s | 2.5 |
| 1989 | -1.4°C | -6.3°C | -11.2°C | 10.0°C | -19.8°C | 38 mm | 83% | 0.2 m/s | 2.6 |
| 1988 | 2.1°C | -2.6°C | -7.2°C | 15.1°C | -14.0°C | 62 mm | 85% | 0.2 m/s | 2.5 |
| 1987 | -1.3°C | -5.2°C | -9.0°C | 11.9°C | -21.1°C | 48 mm | 97% | 0.1 m/s | 2.8 |
| 1986 | -1.4°C | -6.4°C | -11.4°C | 8.0°C | -26.1°C | 47 mm | 88% | 0.2 m/s | 2.8 |
| 1985 | -3.3°C | -7.8°C | -12.3°C | 3.2°C | -26.2°C | 53 mm | 95% | 0.1 m/s | 2.7 |
| 1984 | -1.0°C | -4.6°C | -8.1°C | 10.7°C | -21.6°C | 119 mm | 93% | 0.1 m/s | 2.9 |
| 1983 | 0.3°C | -4.1°C | -8.6°C | 11.2°C | -23.1°C | 123 mm | 95% | 0.2 m/s | — |
| 1982 | -3.6°C | -8.2°C | -12.8°C | 0.1°C | -29.4°C | 79 mm | 100% | 0.1 m/s | — |
| 1981 🌧️ | 1.3°C | -1.5°C | -4.2°C | 5.2°C | -9.4°C | 150 mm | 92% | 0.2 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around -0.4°C with lows near -8.8°C (mean -4.6°C), based on 45 years of NASA POWER data.
March averages 80 mm of rainfall in Grand Falls, about average for rainfall. The wettest on record was 150 mm in 1981.
The hottest March reached 16.2°C in 1999. The coldest dipped to -29.4°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 2.4°C. Daytime highs moved from -1.3°C to 1.2°C and overnight lows from -9.2°C to -6.7°C over the same span.
March is one of the cooler months of the year in Grand Falls and about average for rainfall, so plan for around -0.4°C daytime highs and -8.8°C at night.
Not quite — March is the 4th coolest month in Grand Falls, averaging -4.6°C.
For March in Grand Falls, pack warm layers and a jacket for chilly mornings, with typical highs of -0.4°C and lows of -8.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 91% — quite humid.
Average wind speed in March is 0.1 m/s. The windiest March on record averaged 0.2 m/s (1981).
The wettest March on record was 1981 with 150 mm. On average, March sees 80 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 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.
