April is one of the cooler months of the year in New Westminster, with average highs near 11.8°C and lows around 6.5°C (mean 9.2°C). It is one of the drier months, averaging 91 mm of rainfall and 79% relative humidity across the period.
April is one of the cooler months of the year in New Westminster. Across 45 years of records, the warmest April in New Westminster was 2016 — when the month averaged 11.9°C — while the coldest was 2011 at 6.7°C. Typical April days reach 11.8°C with nights near 6.5°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in New Westminster, averaging 91 mm of rainfall. The wettest April on record was 1996 with 166 mm, while the driest was 2004 at 19 mm.
Relative humidity in New Westminster during April averages 79%. The most humid Aprils were 1993 and 2017 at 84%, and the least humid were 1983 and 2004 at 73%.
April receives about 3.9 kWh/m²/day of solar energy in New Westminster. The sunniest April was 2004 at 5 kWh/m²/day, and the cloudiest were 2003 and 2017 at 3.3.
Average wind speed in New Westminster during April is 1.7 m/s. The windiest Aprils were 1984, 2010 and 2017, among others at 2.1 m/s, while the calmest were 1998, 2004 and 2009 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.9°C | 9.6°C | 9.0°C | 9.2°C | 8.9°C | 0°C |
| Avg High | 11.6°C | 12.3°C | 11.7°C | 11.7°C | 11.5°C | -0.1°C |
| Avg Low | 6.1°C | 6.8°C | 6.3°C | 6.7°C | 6.3°C | +0.2°C |
| Avg Rain | 101 mm | 93 mm | 78 mm | 100 mm | 82 mm | -19 mm |
April temperatures in New Westminster have risen by about 0.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 0.8°C (2010) to a record high of 25.5°C (1998).
Rainfall in April is one of the drier months, averaging 91 mm, with a wettest year of 166 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit New Westminster
April is a good time to visit New Westminster, with days averaging 11.8°C and nights around 6.5°C (mean 9.2°C, cooler than New Westminster's yearly average) and higher 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 | 12.1°C | 9.4°C | 6.7°C | 18.3°C | 4.6°C | 71 mm | 82% | 1.7 m/s | 4.8 |
| 2024 | 11.3°C | 8.8°C | 6.2°C | 15.1°C | 4.3°C | 95 mm | 81% | 1.8 m/s | 4.2 |
| 2023 | 10.4°C | 8.2°C | 6.0°C | 19.8°C | 3.6°C | 126 mm | 83% | 1.9 m/s | 3.4 |
| 2022 | 10.1°C | 7.8°C | 5.4°C | 15.6°C | 2.0°C | 112 mm | 79% | 2 m/s | 3.8 |
| 2021 | 12.7°C | 9.7°C | 6.7°C | 18.8°C | 1.7°C | 46 mm | 75% | 1.5 m/s | 4.6 |
| 2020 | 12.2°C | 9.6°C | 6.9°C | 16.0°C | 3.2°C | 41 mm | 77% | 1.5 m/s | 4.4 |
| 2019 | 12.3°C | 9.7°C | 7.1°C | 17.7°C | 5.1°C | 119 mm | 81% | 1.7 m/s | 3.8 |
| 2018 | 11.8°C | 9.4°C | 7.0°C | 21.8°C | 3.6°C | 130 mm | 81% | 1.8 m/s | 3.6 |
| 2017 | 11.1°C | 8.9°C | 6.7°C | 14.5°C | 4.3°C | 141 mm | 84% | 2.1 m/s | 3.3 |
| 2016 🔥 | 14.7°C | 11.9°C | 9.1°C | 21.7°C | 6.3°C | 39 mm | 79% | 1.4 m/s | 4.4 |
| 2015 | 12.0°C | 9.4°C | 6.8°C | 17.9°C | 4.2°C | 59 mm | 78% | 1.6 m/s | 4.2 |
| 2014 | 12.1°C | 9.4°C | 6.7°C | 21.1°C | 5.1°C | 100 mm | 81% | 1.6 m/s | 3.9 |
| 2013 | 11.3°C | 8.9°C | 6.6°C | 15.5°C | 3.8°C | 108 mm | 80% | 1.6 m/s | 4 |
| 2012 | 11.4°C | 9.0°C | 6.5°C | 16.8°C | 2.0°C | 105 mm | 81% | 1.4 m/s | 3.5 |
| 2011 ❄️ | 9.0°C | 6.7°C | 4.4°C | 13.2°C | 2.1°C | 100 mm | 81% | 1.8 m/s | 3.5 |
| 2010 | 11.4°C | 8.8°C | 6.2°C | 16.5°C | 0.8°C | 95 mm | 81% | 2.1 m/s | 3.6 |
| 2009 | 11.8°C | 8.9°C | 5.9°C | 17.5°C | 1.4°C | 59 mm | 75% | 1.3 m/s | 4.4 |
| 2008 | 9.3°C | 6.8°C | 4.2°C | 15.6°C | 1.4°C | 47 mm | 78% | 1.7 m/s | 3.8 |
| 2007 | 11.2°C | 8.7°C | 6.2°C | 19.1°C | 2.4°C | 98 mm | 80% | 1.5 m/s | 3.5 |
| 2006 | 12.0°C | 9.2°C | 6.4°C | 17.6°C | 4.0°C | 80 mm | 80% | 1.6 m/s | 3.6 |
| 2005 | 12.7°C | 10.1°C | 7.4°C | 20.8°C | 4.3°C | 112 mm | 80% | 1.8 m/s | 4.3 |
| 2004 | 14.5°C | 11.2°C | 7.8°C | 22.8°C | 3.7°C | 19 mm | 73% | 1.3 m/s | 5 |
| 2003 | 11.0°C | 8.7°C | 6.3°C | 17.3°C | 3.4°C | 120 mm | 83% | 1.8 m/s | 3.3 |
| 2002 | 11.4°C | 8.7°C | 6.0°C | 18.5°C | 2.0°C | 87 mm | 80% | 1.6 m/s | 4.1 |
| 2001 | 11.1°C | 8.5°C | 6.0°C | 17.4°C | 2.7°C | 90 mm | 79% | 1.6 m/s | 3.8 |
| 2000 | 12.0°C | 9.3°C | 6.5°C | 16.6°C | 3.4°C | 66 mm | 79% | 1.6 m/s | 3.9 |
| 1999 | 11.4°C | 8.4°C | 5.3°C | 17.3°C | 2.0°C | 57 mm | 76% | 1.6 m/s | 4.4 |
| 1998 | 12.6°C | 9.7°C | 6.7°C | 25.5°C | 4.2°C | 30 mm | 74% | 1.3 m/s | 4.3 |
| 1997 | 11.8°C | 9.0°C | 6.2°C | 16.6°C | 2.3°C | 116 mm | 79% | 1.7 m/s | 4.2 |
| 1996 🌧️ | 12.0°C | 9.7°C | 7.3°C | 18.2°C | 3.9°C | 166 mm | 83% | 1.8 m/s | 3.5 |
| 1995 | 12.3°C | 9.5°C | 6.8°C | 19.3°C | 4.0°C | 59 mm | 75% | 1.6 m/s | 4.1 |
| 1994 | 12.9°C | 10.4°C | 7.9°C | 17.5°C | 4.2°C | 68 mm | 81% | 1.4 m/s | 3.7 |
| 1993 | 11.5°C | 9.3°C | 7.1°C | 15.7°C | 5.1°C | 133 mm | 84% | 1.8 m/s | 3.7 |
| 1992 | 13.1°C | 10.4°C | 7.7°C | 19.4°C | 4.4°C | 114 mm | 78% | 1.7 m/s | 3.9 |
| 1991 | 11.8°C | 9.0°C | 6.1°C | 18.1°C | 2.5°C | 110 mm | 78% | 1.7 m/s | 4.3 |
| 1990 | 13.2°C | 10.3°C | 7.3°C | 19.3°C | 4.7°C | 77 mm | 78% | 1.4 m/s | 3.8 |
| 1989 | 13.5°C | 10.3°C | 7.1°C | 21.1°C | 4.4°C | 67 mm | 76% | 1.4 m/s | 4.2 |
| 1988 | 12.2°C | 9.3°C | 6.4°C | 18.5°C | 1.8°C | 119 mm | 81% | 1.7 m/s | 3.5 |
| 1987 | 12.6°C | 9.8°C | 6.9°C | 20.6°C | 3.8°C | 79 mm | 79% | 1.6 m/s | 3.9 |
| 1986 | 10.4°C | 8.0°C | 5.7°C | 15.6°C | 3.0°C | 98 mm | 81% | 1.8 m/s | 3.7 |
| 1985 | 10.8°C | 8.2°C | 5.6°C | 15.8°C | 3.3°C | 96 mm | 80% | 1.7 m/s | 3.7 |
| 1984 | 11.1°C | 8.6°C | 6.1°C | 17.6°C | 4.2°C | 115 mm | 80% | 2.1 m/s | 3.6 |
| 1983 | 12.9°C | 9.9°C | 6.8°C | 18.7°C | 2.7°C | 74 mm | 73% | 1.4 m/s | — |
| 1982 | 10.0°C | 7.2°C | 4.3°C | 18.8°C | 1.8°C | 103 mm | 78% | 2 m/s | — |
| 1981 | 11.2°C | 8.6°C | 6.1°C | 17.3°C | 2.2°C | 155 mm | 82% | 2.1 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 11.8°C with lows near 6.5°C (mean 9.2°C), based on 45 years of NASA POWER data.
April averages 91 mm of rainfall in New Westminster, one of the drier months. The wettest on record was 166 mm in 1996.
The hottest April reached 25.5°C in 1998. The coldest dipped to 0.8°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.3°C. Daytime highs moved from 11.2°C to 11.3°C and overnight lows from 5.8°C to 6.2°C over the same span.
April is one of the cooler months of the year in New Westminster and one of the drier months, so plan for around 11.8°C daytime highs and 6.5°C at night.
Not quite — April is the 6th coolest month in New Westminster, averaging 9.2°C.
For April in New Westminster, pack warm layers and a jacket for chilly mornings, with typical highs of 11.8°C and lows of 6.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 79% — quite humid.
Average wind speed in April is 1.7 m/s. The windiest April on record averaged 2.1 m/s (1981).
The wettest April on record was 1996 with 166 mm. On average, April sees 91 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 New Westminster 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.
