April is close to Williams Lake's year-round average, with average highs near 9.4°C and lows around -2.3°C (mean 3.6°C). It is one of the drier months, averaging 35 mm of rainfall and 75% relative humidity across the period.
April is close to Williams Lake's year-round average. Across 45 years of records, the warmest April in Williams Lake was 2016 — when the month averaged 7.1°C — while the coldest was 1982 at -0.7°C. Typical April days reach 9.4°C with nights near -2.3°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in Williams Lake, averaging 35 mm of rainfall. The wettest April on record was 2017 with 66 mm, while the driest was 1989 at 17 mm.
Relative humidity in Williams Lake during April averages 75%. The most humid April was 1982 at 83%, and the least humid was 1987 at 68%.
April receives about 4.8 kWh/m²/day of solar energy in Williams Lake. The sunniest April was 2021 at 5.6 kWh/m²/day, and the cloudiest were 2003 and 2017 at 4.1.
Average wind speed in Williams Lake during April is 0.1 m/s. The windiest Aprils were 2021, 2022 and 2025, among others at 0.2 m/s, while the calmest were 2018, 2023 and 2024, 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 | 3.4°C | 4.1°C | 3.4°C | 3.6°C | 3.2°C | -0.2°C |
| Avg High | 9.4°C | 10.0°C | 9.2°C | 9.2°C | 9.0°C | -0.4°C |
| Avg Low | -2.7°C | -1.9°C | -2.4°C | -2.0°C | -2.8°C | -0.1°C |
| Avg Rain | 30 mm | 37 mm | 32 mm | 43 mm | 29 mm | -1 mm |
April temperatures in Williams Lake have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -15.1°C (1982) to a record high of 24.6°C (1987).
Rainfall in April is one of the drier months, averaging 35 mm, with a wettest year of 66 mm.
A good time to visit Williams Lake
April is a good time to visit Williams Lake, with days averaging 9.4°C and nights around -2.3°C (mean 3.6°C, close to Williams Lake's yearly average) and moderate rainfall. August and July are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 11.1°C | 4.7°C | -1.7°C | 18.4°C | -4.2°C | 21 mm | 74% | 0.2 m/s | 5 |
| 2024 | 9.2°C | 3.2°C | -2.9°C | 14.6°C | -6.2°C | 31 mm | 71% | 0.1 m/s | 4.6 |
| 2023 | 9.6°C | 3.7°C | -2.3°C | 23.3°C | -5.4°C | 35 mm | 73% | 0.1 m/s | 5 |
| 2022 | 6.5°C | 1.6°C | -3.2°C | 12.9°C | -10.0°C | 25 mm | 72% | 0.2 m/s | 5 |
| 2021 | 9.8°C | 3.7°C | -2.5°C | 20.0°C | -4.6°C | 36 mm | 75% | 0.2 m/s | 5.6 |
| 2020 | 8.0°C | 2.0°C | -4.0°C | 17.7°C | -13.9°C | 25 mm | 77% | 0.2 m/s | 5.2 |
| 2019 | 9.5°C | 3.6°C | -2.3°C | 15.2°C | -6.0°C | 40 mm | 73% | 0.2 m/s | 4.6 |
| 2018 | 8.6°C | 2.8°C | -2.9°C | 22.5°C | -10.4°C | 43 mm | 80% | 0.1 m/s | 5.1 |
| 2017 🌧️ | 8.1°C | 3.1°C | -1.9°C | 12.9°C | -4.9°C | 66 mm | 82% | 0.1 m/s | 4.1 |
| 2016 🔥 | 13.8°C | 7.1°C | 0.4°C | 22.0°C | -3.6°C | 59 mm | 77% | 0.2 m/s | 4.6 |
| 2015 | 9.3°C | 3.6°C | -2.1°C | 18.5°C | -5.4°C | 26 mm | 74% | 0.2 m/s | 4.6 |
| 2014 | 9.2°C | 3.3°C | -2.5°C | 19.8°C | -5.1°C | 35 mm | 78% | 0.1 m/s | 4.9 |
| 2013 | 8.3°C | 3.0°C | -2.3°C | 16.6°C | -5.3°C | 51 mm | 77% | 0.1 m/s | 4.3 |
| 2012 | 9.5°C | 4.1°C | -1.3°C | 14.7°C | -4.6°C | 62 mm | 78% | 0.1 m/s | 4.3 |
| 2011 | 6.3°C | 1.5°C | -3.3°C | 12.8°C | -5.0°C | 23 mm | 74% | 0.1 m/s | 5.1 |
| 2010 | 9.4°C | 3.7°C | -2.0°C | 20.1°C | -6.2°C | 28 mm | 74% | 0.1 m/s | 4.8 |
| 2009 | 7.3°C | 1.6°C | -4.0°C | 15.4°C | -10.6°C | 26 mm | 80% | 0.1 m/s | 4.9 |
| 2008 | 5.9°C | 0.9°C | -4.1°C | 14.5°C | -10.3°C | 29 mm | 74% | 0.1 m/s | 5 |
| 2007 | 8.4°C | 2.8°C | -2.8°C | 17.1°C | -12.8°C | 33 mm | 76% | 0.1 m/s | 4.6 |
| 2006 | 10.7°C | 4.2°C | -2.3°C | 18.6°C | -5.4°C | 29 mm | 73% | 0.1 m/s | 4.6 |
| 2005 | 11.2°C | 4.7°C | -1.8°C | 21.2°C | -5.3°C | 19 mm | 73% | 0.2 m/s | 5.3 |
| 2004 | 12.7°C | 5.7°C | -1.3°C | 21.3°C | -4.7°C | 38 mm | 72% | 0.2 m/s | 4.9 |
| 2003 | 9.6°C | 4.2°C | -1.1°C | 17.2°C | -5.1°C | 61 mm | 77% | 0.1 m/s | 4.1 |
| 2002 | 8.3°C | 2.8°C | -2.6°C | 16.8°C | -8.1°C | 36 mm | 74% | 0.1 m/s | 5 |
| 2001 | 8.6°C | 3.2°C | -2.1°C | 17.0°C | -6.4°C | 29 mm | 76% | 0.1 m/s | 4.9 |
| 2000 | 9.3°C | 3.5°C | -2.3°C | 14.7°C | -7.1°C | 23 mm | 76% | 0.1 m/s | 4.8 |
| 1999 | 8.9°C | 3.0°C | -3.0°C | 18.7°C | -7.4°C | 50 mm | 78% | 0.1 m/s | 4.8 |
| 1998 | 10.2°C | 4.1°C | -2.0°C | 21.1°C | -5.1°C | 31 mm | 74% | 0.2 m/s | 4.8 |
| 1997 | 8.8°C | 3.1°C | -2.5°C | 15.9°C | -6.0°C | 41 mm | 76% | 0.1 m/s | 5.2 |
| 1996 | 9.2°C | 3.7°C | -1.7°C | 15.6°C | -8.1°C | 34 mm | 78% | 0.1 m/s | 4.5 |
| 1995 | 8.7°C | 3.1°C | -2.5°C | 16.1°C | -5.7°C | 46 mm | 75% | 0.2 m/s | 4.9 |
| 1994 | 11.8°C | 5.5°C | -0.7°C | 16.8°C | -4.7°C | 36 mm | 76% | 0.1 m/s | 4.7 |
| 1993 | 9.8°C | 4.1°C | -1.6°C | 13.9°C | -4.0°C | 40 mm | 77% | 0.1 m/s | 4.5 |
| 1992 | 11.1°C | 4.9°C | -1.3°C | 19.3°C | -6.7°C | 41 mm | 70% | 0.1 m/s | 4.7 |
| 1991 | 10.7°C | 4.5°C | -1.8°C | 19.9°C | -5.6°C | 23 mm | 73% | 0.2 m/s | 5 |
| 1990 | 11.1°C | 4.7°C | -1.6°C | 16.3°C | -5.4°C | 26 mm | 76% | 0.1 m/s | 4.9 |
| 1989 | 12.4°C | 5.2°C | -2.1°C | 21.5°C | -5.4°C | 17 mm | 69% | 0.1 m/s | 5.3 |
| 1988 | 12.1°C | 5.5°C | -1.2°C | 20.5°C | -6.0°C | 50 mm | 71% | 0.1 m/s | 4.6 |
| 1987 | 12.1°C | 5.3°C | -1.5°C | 24.6°C | -6.3°C | 27 mm | 68% | 0.1 m/s | 4.8 |
| 1986 | 8.0°C | 2.6°C | -2.8°C | 16.8°C | -6.0°C | 33 mm | 73% | 0.1 m/s | 4.6 |
| 1985 | 7.9°C | 2.5°C | -3.0°C | 15.8°C | -5.9°C | 30 mm | 76% | 0.1 m/s | 4.9 |
| 1984 | 8.3°C | 2.9°C | -2.5°C | 18.8°C | -5.0°C | 22 mm | 74% | 0.1 m/s | 4.6 |
| 1983 | 11.0°C | 4.5°C | -2.1°C | 16.8°C | -6.1°C | 27 mm | 73% | 0.2 m/s | — |
| 1982 ❄️ | 4.7°C | -0.7°C | -6.2°C | 15.8°C | -15.1°C | 28 mm | 83% | 0.1 m/s | — |
| 1981 | 8.2°C | 2.7°C | -2.7°C | 18.0°C | -7.3°C | 34 mm | 74% | 0.1 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 9.4°C with lows near -2.3°C (mean 3.6°C), based on 45 years of NASA POWER data.
April averages 35 mm of rainfall in Williams Lake, one of the drier months. The wettest on record was 66 mm in 2017.
The hottest April reached 24.6°C in 1987. The coldest dipped to -15.1°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1°C. Daytime highs moved from 8°C to 9.2°C and overnight lows from -3.3°C to -2.5°C over the same span.
April is close to Williams Lake's year-round average and one of the drier months, so plan for around 9.4°C daytime highs and -2.3°C at night.
Not quite — April is the 6th coolest month in Williams Lake, averaging 3.6°C.
For April in Williams Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 9.4°C and lows of -2.3°C.
Relative humidity in April averages 75% — quite humid.
Average wind speed in April is 0.1 m/s. The windiest April on record averaged 0.2 m/s (1983).
The wettest April on record was 2017 with 66 mm. On average, April 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 April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
