March is one of the cooler months of the year in Williams Lake, with average highs near 3.5°C and lows around -6°C (mean -1.2°C). It is one of the drier months, averaging 35 mm of rainfall and 86% relative humidity across the period.
March is one of the cooler months of the year in Williams Lake. Across 45 years of records, the warmest March in Williams Lake was 1992 — when the month averaged 3.8°C — while the coldest was 2009 at -6.5°C. Typical March days reach 3.5°C with nights near -6°C. The long-term trend is cooling, about 0.3°C per decade.
March is one of the drier months in Williams Lake, averaging 35 mm of rainfall. The wettest March on record was 2025 with 72 mm, while the driest was 1989 at 15 mm.
Relative humidity in Williams Lake during March averages 86%. The most humid March was 1982 at 99%, and the least humid was 1988 at 78%.
March receives about 3.4 kWh/m²/day of solar energy in Williams Lake. The sunniest March was 2023 at 3.9 kWh/m²/day, and the cloudiest were 2002 and 2014 at 3.
Average wind speed in Williams Lake during March is 0.2 m/s. The windiest March was 2019 at 0.3 m/s, while the calmest were 2021, 2022 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 | -0.5°C | -1.1°C | -1.7°C | -1.7°C | -1.5°C | -1°C |
| Avg High | 4.4°C | 3.8°C | 2.9°C | 3.0°C | 3.1°C | -1.3°C |
| Avg Low | -5.4°C | -6.0°C | -6.2°C | -6.2°C | -6.1°C | -0.7°C |
| Avg Rain | 27 mm | 29 mm | 38 mm | 46 mm | 35 mm | +9 mm |
March temperatures in Williams Lake have risen by about 0.6°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -30.6°C (2014) to a record high of 17.8°C (2024).
Rainfall in March is one of the drier months, averaging 35 mm, with a wettest year of 72 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows fell 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Williams Lake
March is a good time to visit Williams Lake, with days averaging 3.5°C and nights around -6°C (mean -1.2°C, cooler than Williams Lake's yearly average) and moderate rainfall. August and July are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 4.3°C | 0.2°C | -4.0°C | 9.4°C | -9.4°C | 72 mm | 87% | 0.1 m/s | 3.1 |
| 2024 | 5.6°C | 0.2°C | -5.3°C | 17.8°C | -18.5°C | 17 mm | 80% | 0.2 m/s | 3.6 |
| 2023 | 1.5°C | -3.4°C | -8.4°C | 10.0°C | -17.3°C | 16 mm | 91% | 0.2 m/s | 3.9 |
| 2022 | 4.1°C | -0.3°C | -4.7°C | 12.0°C | -15.9°C | 38 mm | 88% | 0.1 m/s | 3.5 |
| 2021 | 4.0°C | -0.2°C | -4.3°C | 8.9°C | -11.6°C | 28 mm | 84% | 0.1 m/s | 3.2 |
| 2020 | -0.9°C | -5.5°C | -10.0°C | 5.5°C | -27.8°C | 41 mm | 95% | 0.2 m/s | 3.7 |
| 2019 | 2.4°C | -3.2°C | -8.7°C | 14.3°C | -29.3°C | 19 mm | 92% | 0.3 m/s | 3.7 |
| 2018 | -0.4°C | -4.5°C | -8.6°C | 2.5°C | -19.8°C | 63 mm | 96% | 0.2 m/s | 3.2 |
| 2017 | 1.1°C | -3.0°C | -7.0°C | 8.2°C | -18.3°C | 71 mm | 94% | 0.1 m/s | 3.2 |
| 2016 | 6.9°C | 2.0°C | -2.9°C | 16.9°C | -6.0°C | 44 mm | 83% | 0.1 m/s | 3.8 |
| 2015 | 7.5°C | 2.4°C | -2.7°C | 12.6°C | -15.6°C | 61 mm | 85% | 0.2 m/s | 3.3 |
| 2014 | -0.5°C | -4.7°C | -8.9°C | 6.9°C | -30.6°C | 47 mm | 93% | 0.2 m/s | 3 |
| 2013 | 2.6°C | -2.2°C | -6.9°C | 14.0°C | -15.4°C | 52 mm | 90% | 0.2 m/s | 3.4 |
| 2012 | 2.9°C | -1.5°C | -5.8°C | 10.5°C | -18.3°C | 43 mm | 83% | 0.2 m/s | 3.3 |
| 2011 | 1.3°C | -3.0°C | -7.3°C | 8.5°C | -23.4°C | 35 mm | 94% | 0.1 m/s | 3.3 |
| 2010 | 5.7°C | 1.1°C | -3.6°C | 11.1°C | -11.4°C | 26 mm | 81% | 0.1 m/s | 3.3 |
| 2009 ❄️ | -2.3°C | -6.5°C | -10.8°C | 1.1°C | -29.4°C | 34 mm | 98% | 0.1 m/s | 3.3 |
| 2008 | 2.6°C | -1.7°C | -6.1°C | 7.2°C | -10.5°C | 32 mm | 83% | 0.2 m/s | 3.5 |
| 2007 | 3.6°C | -0.2°C | -4.0°C | 11.0°C | -14.1°C | 46 mm | 87% | 0.1 m/s | 3.5 |
| 2006 | 4.4°C | -0.8°C | -6.0°C | 10.6°C | -13.6°C | 19 mm | 82% | 0.1 m/s | 3.3 |
| 2005 | 6.6°C | 1.5°C | -3.6°C | 12.3°C | -10.5°C | 35 mm | 80% | 0.1 m/s | 3.7 |
| 2004 | 4.1°C | -0.2°C | -4.5°C | 14.4°C | -10.6°C | 38 mm | 87% | 0.1 m/s | 3.5 |
| 2003 | 3.6°C | -1.4°C | -6.4°C | 10.8°C | -23.6°C | 34 mm | 79% | 0.1 m/s | 3.2 |
| 2002 | -1.3°C | -6.1°C | -10.9°C | 8.9°C | -24.3°C | 42 mm | 85% | 0.2 m/s | 3 |
| 2001 | 3.7°C | -0.8°C | -5.4°C | 10.3°C | -13.0°C | 46 mm | 85% | 0.1 m/s | 3.3 |
| 2000 | 4.0°C | -0.4°C | -4.8°C | 11.7°C | -12.2°C | 56 mm | 86% | 0.2 m/s | 3.4 |
| 1999 | 0.5°C | -3.2°C | -7.0°C | 5.4°C | -14.5°C | 38 mm | 94% | 0.1 m/s | 3.4 |
| 1998 | 4.3°C | -0.1°C | -4.4°C | 11.6°C | -10.7°C | 43 mm | 87% | 0.2 m/s | 3.3 |
| 1997 | 0.0°C | -4.0°C | -8.1°C | 7.7°C | -17.7°C | 40 mm | 94% | 0.1 m/s | 3.4 |
| 1996 | 2.6°C | -2.5°C | -7.5°C | 14.1°C | -19.4°C | 29 mm | 80% | 0.1 m/s | 3.5 |
| 1995 | 4.6°C | -0.7°C | -6.1°C | 15.0°C | -20.3°C | 32 mm | 81% | 0.2 m/s | 3.4 |
| 1994 | 6.0°C | 0.9°C | -4.1°C | 16.8°C | -10.3°C | 22 mm | 80% | 0.1 m/s | 3.4 |
| 1993 | 3.4°C | -1.4°C | -6.3°C | 9.6°C | -16.1°C | 23 mm | 85% | 0.2 m/s | 3.7 |
| 1992 🔥 | 10.3°C | 3.8°C | -2.6°C | 14.2°C | -6.3°C | 16 mm | 79% | 0.2 m/s | 3.6 |
| 1991 | 2.8°C | -2.4°C | -7.5°C | 14.1°C | -17.8°C | 27 mm | 81% | 0.2 m/s | 3.5 |
| 1990 | 3.7°C | -1.3°C | -6.3°C | 12.0°C | -14.0°C | 16 mm | 87% | 0.2 m/s | 3.2 |
| 1989 | 3.0°C | -2.4°C | -7.7°C | 8.7°C | -29.3°C | 15 mm | 81% | 0.2 m/s | 3.3 |
| 1988 | 5.4°C | 0.8°C | -3.8°C | 12.6°C | -9.3°C | 33 mm | 78% | 0.2 m/s | 3.2 |
| 1987 | 7.3°C | 2.0°C | -3.4°C | 12.5°C | -10.7°C | 31 mm | 81% | 0.1 m/s | 3.5 |
| 1986 | 7.0°C | 1.8°C | -3.3°C | 11.1°C | -5.9°C | 30 mm | 81% | 0.1 m/s | 3.2 |
| 1985 | 0.1°C | -4.2°C | -8.4°C | 3.1°C | -13.5°C | 24 mm | 96% | 0.2 m/s | 3.5 |
| 1984 | 6.4°C | 1.4°C | -3.5°C | 11.1°C | -8.0°C | 31 mm | 85% | 0.1 m/s | 3.4 |
| 1983 | 5.4°C | 0.4°C | -4.5°C | 8.1°C | -11.6°C | 24 mm | 83% | 0.2 m/s | — |
| 1982 | -1.1°C | -5.5°C | -10.0°C | 0.8°C | -19.1°C | 28 mm | 99% | 0.2 m/s | — |
| 1981 | 6.5°C | 1.3°C | -4.0°C | 10.6°C | -9.5°C | 21 mm | 81% | 0.2 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 3.5°C with lows near -6°C (mean -1.2°C), based on 45 years of NASA POWER data.
March averages 35 mm of rainfall in Williams Lake, one of the drier months. The wettest on record was 72 mm in 2025.
The hottest March reached 17.8°C in 2024. The coldest dipped to -30.6°C in 2014.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.6°C. Daytime highs moved from 3.5°C to 3.9°C and overnight lows from -6.1°C to -5.3°C over the same span.
March is one of the cooler months of the year in Williams Lake and one of the drier months, so plan for around 3.5°C daytime highs and -6°C at night.
Not quite — March is the 5th coolest month in Williams Lake, averaging -1.2°C.
For March in Williams Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 3.5°C and lows of -6°C.
Relative humidity in March averages 86% — quite humid.
Average wind speed in March is 0.2 m/s. The windiest March on record averaged 0.3 m/s (2019).
The wettest March on record was 2025 with 72 mm. On average, March sees 35 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 Williams Lake 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.
