April is close to Saint-Hyacinthe's year-round average, with average highs near 10.6°C and lows around 0°C (mean 5.3°C). It is about average for rainfall, averaging 89 mm of rainfall and 81% relative humidity across the period.
April is close to Saint-Hyacinthe's year-round average. Across 45 years of records, the warmest April in Saint-Hyacinthe was 1987 — when the month averaged 8.1°C — while the coldest was 2016 at 2.2°C. Typical April days reach 10.6°C with nights near 0°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Saint-Hyacinthe, averaging 89 mm of rainfall. The wettest April on record was 1996 with 154 mm, while the driest was 2001 at 32 mm.
Relative humidity in Saint-Hyacinthe during April averages 81%. The most humid April was 1983 at 87%, and the least humid was 2013 at 76%.
April receives about 4.5 kWh/m²/day of solar energy in Saint-Hyacinthe. The sunniest April was 2016 at 5.4 kWh/m²/day, and the cloudiest was 2007 at 3.7.
Average wind speed in Saint-Hyacinthe during April is 3.1 m/s. The windiest April was 1982 at 4.1 m/s, while the calmest were 1989, 1991 and 1998 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 5.5°C | 5.2°C | 5.2°C | 5.0°C | 5.9°C | +0.4°C |
| Avg High | 10.9°C | 10.3°C | 10.5°C | 10.3°C | 11.4°C | +0.5°C |
| Avg Low | 0.1°C | 0.0°C | -0.1°C | -0.4°C | 0.5°C | +0.4°C |
| Avg Rain | 77 mm | 90 mm | 97 mm | 94 mm | 81 mm | +3 mm |
April temperatures in Saint-Hyacinthe have risen by about 1.6°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -13.3°C (2003) to a record high of 27.7°C (2009).
Rainfall in April is about average for rainfall, averaging 89 mm, with a wettest year of 154 mm.
A good time to visit Saint-Hyacinthe
April is a good time to visit Saint-Hyacinthe, with days averaging 10.6°C and nights around 0°C (mean 5.3°C, close to Saint-Hyacinthe's yearly average) and higher rainfall. July and August 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 | 11.6°C | 5.9°C | 0.2°C | 26.1°C | -7.3°C | 85 mm | 77% | 3.3 m/s | 4.4 |
| 2024 | 12.1°C | 6.4°C | 0.6°C | 21.6°C | -4.9°C | 86 mm | 79% | 3.4 m/s | 4.4 |
| 2023 | 12.8°C | 7.0°C | 1.3°C | 25.2°C | -7.9°C | 89 mm | 78% | 3.1 m/s | 4.4 |
| 2022 | 10.6°C | 5.2°C | -0.2°C | 18.5°C | -3.9°C | 104 mm | 78% | 3.3 m/s | 4.3 |
| 2021 | 12.7°C | 7.2°C | 1.8°C | 22.4°C | -5.5°C | 66 mm | 79% | 2.8 m/s | 4.5 |
| 2020 | 8.6°C | 3.8°C | -1.0°C | 17.3°C | -4.8°C | 56 mm | 79% | 3.5 m/s | 4.5 |
| 2019 | 9.5°C | 4.5°C | -0.5°C | 18.3°C | -6.4°C | 122 mm | 82% | 3.6 m/s | 3.9 |
| 2018 | 6.9°C | 2.6°C | -1.7°C | 19.4°C | -10.5°C | 119 mm | 82% | 3.2 m/s | 3.9 |
| 2017 | 12.3°C | 6.9°C | 1.4°C | 23.3°C | -2.9°C | 134 mm | 84% | 3.1 m/s | 3.8 |
| 2016 ❄️ | 8.0°C | 2.2°C | -3.6°C | 19.0°C | -12.2°C | 74 mm | 76% | 2.9 m/s | 5.4 |
| 2015 | 10.3°C | 4.8°C | -0.8°C | 20.3°C | -10.5°C | 66 mm | 79% | 3.4 m/s | 4.5 |
| 2014 | 10.8°C | 5.0°C | -0.8°C | 22.9°C | -9.1°C | 94 mm | 80% | 3.4 m/s | 4.5 |
| 2013 | 10.6°C | 5.0°C | -0.7°C | 22.0°C | -7.4°C | 48 mm | 76% | 3.5 m/s | 4.6 |
| 2012 | 10.4°C | 5.3°C | 0.3°C | 25.4°C | -3.9°C | 64 mm | 81% | 3 m/s | 4.5 |
| 2011 | 10.4°C | 5.3°C | 0.2°C | 23.8°C | -5.9°C | 132 mm | 82% | 3.3 m/s | 4.1 |
| 2010 | 13.4°C | 8.0°C | 2.5°C | 25.0°C | -0.9°C | 91 mm | 82% | 3 m/s | 4.5 |
| 2009 | 12.1°C | 6.2°C | 0.3°C | 27.7°C | -4.3°C | 65 mm | 82% | 3.2 m/s | 4.6 |
| 2008 | 12.8°C | 7.2°C | 1.7°C | 22.5°C | -7.4°C | 75 mm | 84% | 2.8 m/s | 5 |
| 2007 | 8.6°C | 4.4°C | 0.2°C | 23.3°C | -6.8°C | 127 mm | 86% | 3.1 m/s | 3.7 |
| 2006 | 11.6°C | 6.1°C | 0.6°C | 19.0°C | -5.1°C | 103 mm | 83% | 3 m/s | 4.6 |
| 2005 | 12.0°C | 6.3°C | 0.7°C | 20.9°C | -3.8°C | 135 mm | 82% | 3 m/s | 4.3 |
| 2004 | 9.6°C | 4.7°C | -0.3°C | 24.7°C | -7.3°C | 91 mm | 82% | 3.3 m/s | 4.4 |
| 2003 | 8.8°C | 3.4°C | -2.0°C | 23.2°C | -13.3°C | 93 mm | 80% | 2.9 m/s | 4.1 |
| 2002 | 10.9°C | 6.0°C | 1.1°C | 26.3°C | -6.3°C | 110 mm | 81% | 2.9 m/s | 4.2 |
| 2001 | 9.8°C | 4.1°C | -1.7°C | 22.0°C | -9.6°C | 32 mm | 84% | 3 m/s | 5.3 |
| 2000 | 8.5°C | 3.6°C | -1.3°C | 20.4°C | -12.7°C | 144 mm | 86% | 3.1 m/s | 3.9 |
| 1999 | 11.0°C | 5.3°C | -0.5°C | 17.6°C | -5.2°C | 36 mm | 77% | 2.9 m/s | 4.9 |
| 1998 | 13.2°C | 6.9°C | 0.6°C | 20.9°C | -3.8°C | 41 mm | 76% | 2.7 m/s | 5.3 |
| 1997 | 9.4°C | 4.1°C | -1.3°C | 21.3°C | -9.3°C | 67 mm | 80% | 3 m/s | 5.1 |
| 1996 🌧️ | 9.0°C | 4.2°C | -0.5°C | 16.8°C | -7.5°C | 154 mm | 82% | 3.2 m/s | 4.4 |
| 1995 | 8.5°C | 3.4°C | -1.8°C | 18.7°C | -11.9°C | 53 mm | 76% | 3.1 m/s | 4.5 |
| 1994 | 9.9°C | 5.1°C | 0.2°C | 22.4°C | -11.6°C | 116 mm | 84% | 3.5 m/s | 4.2 |
| 1993 | 10.7°C | 5.7°C | 0.6°C | 20.1°C | -3.3°C | 143 mm | 84% | 3 m/s | 3.9 |
| 1992 | 8.7°C | 3.9°C | -0.9°C | 22.0°C | -9.9°C | 69 mm | 83% | 2.9 m/s | 5.2 |
| 1991 | 12.0°C | 7.1°C | 2.2°C | 21.2°C | -2.9°C | 122 mm | 84% | 2.7 m/s | 4.5 |
| 1990 | 10.7°C | 5.9°C | 1.1°C | 26.2°C | -8.1°C | 96 mm | 85% | 3.1 m/s | 4.1 |
| 1989 | 8.5°C | 3.7°C | -1.1°C | 16.0°C | -5.9°C | 53 mm | 80% | 2.7 m/s | 4.4 |
| 1988 | 11.6°C | 6.2°C | 0.9°C | 18.2°C | -4.0°C | 83 mm | 82% | 3.1 m/s | 4.1 |
| 1987 🔥 | 14.0°C | 8.1°C | 2.2°C | 25.7°C | -5.1°C | 50 mm | 79% | 3 m/s | 4.5 |
| 1986 | 13.9°C | 7.9°C | 1.9°C | 25.6°C | -4.5°C | 55 mm | 80% | 2.9 m/s | 5.1 |
| 1985 | 9.0°C | 3.9°C | -1.2°C | 18.8°C | -8.8°C | 75 mm | 82% | 3 m/s | 4.8 |
| 1984 | 11.0°C | 5.8°C | 0.5°C | 22.1°C | -6.1°C | 65 mm | 85% | 2.9 m/s | 4.4 |
| 1983 | 9.6°C | 4.7°C | -0.2°C | 18.5°C | -5.9°C | 142 mm | 87% | 2.9 m/s | — |
| 1982 | 8.1°C | 2.7°C | -2.6°C | 23.2°C | -13.0°C | 88 mm | 81% | 4.1 m/s | — |
| 1981 | 12.1°C | 6.2°C | 0.4°C | 20.0°C | -6.0°C | 87 mm | 79% | 3.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 10.6°C with lows near 0°C (mean 5.3°C), based on 45 years of NASA POWER data.
April averages 89 mm of rainfall in Saint-Hyacinthe, about average for rainfall. The wettest on record was 154 mm in 1996.
The hottest April reached 27.7°C in 2009. The coldest dipped to -13.3°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.6°C. Daytime highs moved from 10°C to 12°C and overnight lows from -0.6°C to 0.7°C over the same span.
April is close to Saint-Hyacinthe's year-round average and about average for rainfall, so plan for around 10.6°C daytime highs and 0°C at night.
Not quite — April is the 6th coolest month in Saint-Hyacinthe, averaging 5.3°C.
For April in Saint-Hyacinthe, pack warm layers and a jacket for chilly mornings, with typical highs of 10.6°C and lows of 0°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 81% — quite humid.
Average wind speed in April is 3.1 m/s. The windiest April on record averaged 4.1 m/s (1982).
The wettest April on record was 1996 with 154 mm. On average, April sees 89 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 Saint-Hyacinthe 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.
