April is one of the cooler months of the year in High River, with average highs near 11°C and lows around -1.8°C (mean 4.6°C). It is about average for rainfall, averaging 36 mm of rainfall and 62% relative humidity across the period.
April is one of the cooler months of the year in High River. Across 45 years of records, the warmest April in High River was 2016 — when the month averaged 8.6°C — while the coldest was 1982 at 1.4°C. Typical April days reach 11°C with nights near -1.8°C. The long-term trend is cooling, about 0.2°C per decade.
April is about average for rainfall in High River, averaging 36 mm of rainfall. The wettest April on record was 2017 with 73 mm, while the driest was 1988 at 9 mm.
Relative humidity in High River during April averages 62%. The most humid April was 2017 at 70%, and the least humid was 1988 at 53%.
April receives about 4.8 kWh/m²/day of solar energy in High River. The sunniest Aprils were 1991, 2004 and 2015 at 5.4 kWh/m²/day, and the cloudiest were 2003 and 2007 at 4.1.
Average wind speed in High River during April is 1.8 m/s. The windiest April was 2010 at 2.3 m/s, while the calmest was 1993 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 4.9°C | 5.2°C | 4.4°C | 4.5°C | 3.9°C | -1°C |
| Avg High | 11.5°C | 11.6°C | 10.7°C | 10.8°C | 10.2°C | -1.3°C |
| Avg Low | -1.8°C | -1.2°C | -1.9°C | -1.8°C | -2.4°C | -0.6°C |
| Avg Rain | 29 mm | 30 mm | 42 mm | 44 mm | 37 mm | +9 mm |
April temperatures in High River have stayed relatively stable across the record.
April has ranged from a record low of -15.1°C (2018) to a record high of 27.5°C (1987).
Rainfall in April is about average for rainfall, averaging 36 mm, with a wettest year of 73 mm.
A good time to visit High River
April is a good time to visit High River, with days averaging 11°C and nights around -1.8°C (mean 4.6°C, close to High River's yearly average) and moderate 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 | 11.8°C | 5.1°C | -1.6°C | 18.8°C | -7.2°C | 43 mm | 64% | 1.7 m/s | 5 |
| 2024 | 10.5°C | 4.3°C | -1.8°C | 18.3°C | -11.5°C | 71 mm | 67% | 1.9 m/s | 4.8 |
| 2023 | 10.7°C | 4.3°C | -2.1°C | 23.6°C | -8.3°C | 31 mm | 63% | 1.7 m/s | 5.1 |
| 2022 | 7.8°C | 2.2°C | -3.5°C | 18.3°C | -11.2°C | 30 mm | 58% | 1.9 m/s | 4.7 |
| 2021 | 11.3°C | 4.6°C | -2.1°C | 23.0°C | -6.2°C | 20 mm | 58% | 1.7 m/s | 5.2 |
| 2020 | 8.9°C | 2.8°C | -3.4°C | 19.4°C | -13.6°C | 29 mm | 62% | 1.9 m/s | 4.7 |
| 2019 | 11.3°C | 5.0°C | -1.3°C | 19.9°C | -5.7°C | 23 mm | 60% | 1.7 m/s | 4.9 |
| 2018 | 9.1°C | 2.6°C | -3.9°C | 25.9°C | -15.1°C | 40 mm | 68% | 1.7 m/s | 5.3 |
| 2017 🌧️ | 10.3°C | 4.4°C | -1.5°C | 15.6°C | -5.2°C | 73 mm | 70% | 1.6 m/s | 4.4 |
| 2016 🔥 | 15.8°C | 8.6°C | 1.5°C | 26.5°C | -4.5°C | 21 mm | 58% | 1.8 m/s | 4.9 |
| 2015 | 12.2°C | 5.4°C | -1.5°C | 25.0°C | -8.0°C | 26 mm | 59% | 1.7 m/s | 5.4 |
| 2014 | 11.0°C | 4.6°C | -1.9°C | 19.9°C | -8.2°C | 31 mm | 63% | 1.8 m/s | 4.8 |
| 2013 | 8.2°C | 2.4°C | -3.4°C | 20.5°C | -9.0°C | 32 mm | 65% | 2 m/s | 4.2 |
| 2012 | 11.9°C | 5.5°C | -0.9°C | 26.4°C | -5.8°C | 63 mm | 64% | 1.6 m/s | 4.6 |
| 2011 | 6.8°C | 1.5°C | -3.7°C | 13.8°C | -8.9°C | 57 mm | 68% | 1.8 m/s | 5 |
| 2010 | 11.1°C | 4.9°C | -1.3°C | 21.2°C | -6.0°C | 71 mm | 59% | 2.3 m/s | 4.7 |
| 2009 | 9.9°C | 3.7°C | -2.4°C | 23.4°C | -7.3°C | 24 mm | 60% | 1.7 m/s | 4.8 |
| 2008 | 8.7°C | 2.4°C | -3.9°C | 20.9°C | -11.1°C | 34 mm | 60% | 1.8 m/s | 4.6 |
| 2007 | 9.0°C | 3.4°C | -2.2°C | 17.8°C | -9.7°C | 58 mm | 69% | 1.8 m/s | 4.1 |
| 2006 | 12.6°C | 6.3°C | 0.0°C | 22.7°C | -5.1°C | 64 mm | 66% | 1.7 m/s | 5 |
| 2005 | 12.1°C | 5.4°C | -1.2°C | 20.2°C | -6.3°C | 23 mm | 59% | 1.9 m/s | 4.9 |
| 2004 | 13.6°C | 6.6°C | -0.4°C | 24.9°C | -4.2°C | 33 mm | 59% | 1.6 m/s | 5.4 |
| 2003 | 11.1°C | 5.1°C | -0.8°C | 20.6°C | -7.4°C | 58 mm | 68% | 1.5 m/s | 4.1 |
| 2002 | 7.9°C | 2.0°C | -3.9°C | 17.0°C | -13.8°C | 43 mm | 64% | 1.9 m/s | 4.7 |
| 2001 | 10.0°C | 4.2°C | -1.5°C | 24.3°C | -7.2°C | 50 mm | 63% | 2 m/s | 4.9 |
| 2000 | 12.2°C | 5.0°C | -2.3°C | 21.0°C | -11.4°C | 29 mm | 59% | 1.8 m/s | 4.6 |
| 1999 | 11.8°C | 5.3°C | -1.3°C | 24.4°C | -5.7°C | 45 mm | 57% | 1.8 m/s | 4.8 |
| 1998 | 13.1°C | 6.6°C | 0.1°C | 24.7°C | -3.3°C | 31 mm | 61% | 1.5 m/s | 5.1 |
| 1997 | 8.4°C | 2.1°C | -4.2°C | 18.1°C | -12.2°C | 20 mm | 58% | 1.9 m/s | 5.1 |
| 1996 | 12.0°C | 5.6°C | -0.8°C | 21.3°C | -7.0°C | 27 mm | 62% | 1.8 m/s | 4.4 |
| 1995 | 9.0°C | 3.4°C | -2.3°C | 14.7°C | -5.7°C | 36 mm | 62% | 1.7 m/s | 4.6 |
| 1994 | 12.2°C | 5.7°C | -0.8°C | 23.0°C | -6.9°C | 17 mm | 63% | 1.6 m/s | 4.7 |
| 1993 | 11.5°C | 5.3°C | -0.9°C | 17.3°C | -4.6°C | 34 mm | 64% | 1.4 m/s | 4.8 |
| 1992 | 13.8°C | 7.2°C | 0.6°C | 24.3°C | -10.1°C | 33 mm | 58% | 1.8 m/s | 4.9 |
| 1991 | 11.9°C | 5.7°C | -0.6°C | 21.1°C | -4.3°C | 23 mm | 58% | 2.1 m/s | 5.4 |
| 1990 | 11.8°C | 5.0°C | -1.8°C | 22.0°C | -8.5°C | 38 mm | 63% | 1.7 m/s | 4.8 |
| 1989 | 11.8°C | 5.0°C | -1.9°C | 22.6°C | -7.7°C | 31 mm | 59% | 1.5 m/s | 5.1 |
| 1988 | 13.7°C | 6.5°C | -0.8°C | 22.8°C | -4.8°C | 9 mm | 53% | 1.8 m/s | 5.2 |
| 1987 | 15.7°C | 8.2°C | 0.8°C | 27.5°C | -4.4°C | 19 mm | 56% | 1.8 m/s | 5.2 |
| 1986 | 10.4°C | 4.2°C | -2.1°C | 21.4°C | -10.0°C | 20 mm | 60% | 1.8 m/s | 5.1 |
| 1985 | 11.7°C | 5.3°C | -1.1°C | 21.1°C | -5.1°C | 47 mm | 62% | 1.8 m/s | 4.7 |
| 1984 | 11.2°C | 4.7°C | -1.8°C | 26.7°C | -6.6°C | 37 mm | 61% | 1.7 m/s | 4.8 |
| 1983 | 10.2°C | 4.0°C | -2.1°C | 19.3°C | -7.1°C | 59 mm | 67% | 1.5 m/s | — |
| 1982 ❄️ | 7.7°C | 1.4°C | -4.9°C | 19.8°C | -13.7°C | 20 mm | 63% | 2.1 m/s | — |
| 1981 | 11.5°C | 4.7°C | -2.0°C | 21.3°C | -7.2°C | 16 mm | 57% | 1.9 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 11°C with lows near -1.8°C (mean 4.6°C), based on 45 years of NASA POWER data.
April averages 36 mm of rainfall in High River, about average for rainfall. The wettest on record was 73 mm in 2017.
The hottest April reached 27.5°C in 1987. The coldest dipped to -15.1°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from -2.4°C to -2.2°C while daytime highs eased from 10.5°C to 10.4°C, narrowing the gap between day and night.
April is one of the cooler months of the year in High River and about average for rainfall, so plan for around 11°C daytime highs and -1.8°C at night.
Not quite — April is the 6th coolest month in High River, averaging 4.6°C.
For April in High River, pack warm layers and a jacket for chilly mornings, with typical highs of 11°C and lows of -1.8°C.
Relative humidity in April averages 62% — moderately humid.
Average wind speed in April is 1.8 m/s. The windiest April on record averaged 2.3 m/s (2010).
The wettest April on record was 2017 with 73 mm. On average, April sees 36 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 High River 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.
