April is close to Red Deer's year-round average, with average highs near 10°C and lows around -1.9°C (mean 4.1°C). It is about average for rainfall, averaging 35 mm of rainfall and 66% relative humidity across the period.
April is close to Red Deer's year-round average. Across 45 years of records, the warmest April in Red Deer was 2016 — when the month averaged 7.3°C — while the coldest was 2002 at 0.3°C. Typical April days reach 10°C with nights near -1.9°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Red Deer, averaging 35 mm of rainfall. The wettest April on record was 2012 with 77 mm, while the driest was 1994 at 7 mm.
Relative humidity in Red Deer during April averages 66%. The most humid April was 2017 at 76%, and the least humid was 1988 at 55%.
April receives about 4.7 kWh/m²/day of solar energy in Red Deer. The sunniest April was 2020 at 5.5 kWh/m²/day, and the cloudiest was 2017 at 3.6.
Average wind speed in Red Deer during April is 3.1 m/s. The windiest April was 2010 at 4.1 m/s, while the calmest was 1989 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 4.2°C | 4.5°C | 3.8°C | 3.9°C | 3.7°C | -0.5°C |
| Avg High | 10.5°C | 10.5°C | 9.6°C | 9.8°C | 9.7°C | -0.8°C |
| Avg Low | -2.1°C | -1.4°C | -2.1°C | -1.9°C | -2.3°C | -0.2°C |
| Avg Rain | 28 mm | 33 mm | 37 mm | 42 mm | 32 mm | +4 mm |
April temperatures in Red Deer have risen by about 0.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -19.5°C (1982) to a record high of 26.7°C (1987).
Rainfall in April is about average for rainfall, averaging 35 mm, with a wettest year of 77 mm.
A good time to visit Red Deer
April is a good time to visit Red Deer, with days averaging 10°C and nights around -1.9°C (mean 4.1°C, close to Red Deer'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 | 11.3°C | 4.9°C | -1.5°C | 19.8°C | -6.9°C | 45 mm | 65% | 2.9 m/s | 5.1 |
| 2024 | 10.6°C | 4.8°C | -1.1°C | 18.7°C | -7.0°C | 26 mm | 63% | 3.6 m/s | 4.7 |
| 2023 | 11.3°C | 4.8°C | -1.7°C | 23.0°C | -5.5°C | 23 mm | 62% | 2.8 m/s | 5 |
| 2022 | 6.9°C | 1.9°C | -3.2°C | 18.6°C | -10.9°C | 45 mm | 65% | 3.6 m/s | 4.8 |
| 2021 | 10.4°C | 3.9°C | -2.5°C | 21.7°C | -5.9°C | 31 mm | 62% | 2.8 m/s | 5.3 |
| 2020 | 7.4°C | 1.7°C | -4.0°C | 19.4°C | -16.8°C | 24 mm | 69% | 3.4 m/s | 5.5 |
| 2019 | 9.5°C | 3.9°C | -1.7°C | 19.2°C | -8.9°C | 38 mm | 66% | 2.9 m/s | 4.7 |
| 2018 | 8.3°C | 2.1°C | -4.2°C | 25.5°C | -17.2°C | 26 mm | 69% | 3 m/s | 5.3 |
| 2017 | 8.2°C | 3.2°C | -1.8°C | 16.9°C | -6.0°C | 67 mm | 76% | 2.8 m/s | 3.6 |
| 2016 🔥 | 14.3°C | 7.3°C | 0.4°C | 25.0°C | -5.8°C | 31 mm | 64% | 3.5 m/s | 4.9 |
| 2015 | 11.6°C | 5.3°C | -1.0°C | 25.7°C | -4.8°C | 23 mm | 62% | 3.3 m/s | 4.8 |
| 2014 | 9.7°C | 3.6°C | -2.4°C | 20.7°C | -10.8°C | 34 mm | 69% | 2.9 m/s | 4.9 |
| 2013 | 6.5°C | 1.2°C | -4.1°C | 21.0°C | -11.8°C | 41 mm | 70% | 3.5 m/s | 4.9 |
| 2012 🌧️ | 9.9°C | 4.3°C | -1.3°C | 24.1°C | -6.1°C | 77 mm | 70% | 3.3 m/s | 4.4 |
| 2011 | 7.9°C | 2.7°C | -2.5°C | 15.7°C | -7.0°C | 30 mm | 65% | 2.7 m/s | 5.3 |
| 2010 | 11.9°C | 5.5°C | -0.8°C | 21.9°C | -6.5°C | 58 mm | 59% | 4.1 m/s | 4.7 |
| 2009 | 9.2°C | 3.4°C | -2.4°C | 21.5°C | -6.7°C | 20 mm | 64% | 2.7 m/s | 4.9 |
| 2008 | 6.5°C | 1.3°C | -4.0°C | 21.4°C | -10.8°C | 41 mm | 71% | 3.1 m/s | 4 |
| 2007 | 7.3°C | 2.3°C | -2.8°C | 17.5°C | -11.3°C | 72 mm | 73% | 3.2 m/s | 4.2 |
| 2006 | 13.6°C | 7.0°C | 0.4°C | 22.4°C | -4.3°C | 24 mm | 65% | 3.2 m/s | 5 |
| 2005 | 12.1°C | 5.7°C | -0.7°C | 21.9°C | -6.7°C | 15 mm | 65% | 3.3 m/s | 5 |
| 2004 | 11.9°C | 5.5°C | -0.8°C | 24.5°C | -7.0°C | 30 mm | 63% | 3.2 m/s | 4.8 |
| 2003 | 9.5°C | 4.1°C | -1.4°C | 21.9°C | -11.2°C | 73 mm | 73% | 3 m/s | 4 |
| 2002 ❄️ | 5.5°C | 0.3°C | -4.9°C | 17.3°C | -15.5°C | 45 mm | 69% | 3.2 m/s | 4.2 |
| 2001 | 11.2°C | 4.9°C | -1.4°C | 24.4°C | -5.7°C | 17 mm | 60% | 3.2 m/s | 5.2 |
| 2000 | 9.6°C | 3.5°C | -2.6°C | 20.0°C | -10.9°C | 30 mm | 65% | 3.1 m/s | 4.5 |
| 1999 | 11.4°C | 5.3°C | -0.9°C | 23.0°C | -5.6°C | 47 mm | 65% | 3.3 m/s | 4.7 |
| 1998 | 12.7°C | 6.3°C | -0.1°C | 21.2°C | -3.8°C | 41 mm | 64% | 2.7 m/s | 5.1 |
| 1997 | 7.4°C | 1.5°C | -4.3°C | 15.5°C | -14.1°C | 20 mm | 65% | 3.1 m/s | 4.9 |
| 1996 | 10.5°C | 4.7°C | -1.2°C | 20.1°C | -10.1°C | 39 mm | 71% | 3.1 m/s | 4.2 |
| 1995 | 8.5°C | 3.0°C | -2.5°C | 14.6°C | -10.5°C | 23 mm | 66% | 3.4 m/s | 4.4 |
| 1994 | 12.1°C | 5.4°C | -1.3°C | 22.1°C | -5.8°C | 7 mm | 62% | 2.9 m/s | 4.9 |
| 1993 | 10.4°C | 4.6°C | -1.3°C | 16.5°C | -4.5°C | 36 mm | 71% | 2.5 m/s | 4.1 |
| 1992 | 11.4°C | 5.5°C | -0.4°C | 23.5°C | -10.7°C | 26 mm | 68% | 3 m/s | 4.5 |
| 1991 | 11.1°C | 5.4°C | -0.3°C | 19.9°C | -3.6°C | 37 mm | 67% | 3.1 m/s | 5 |
| 1990 | 9.6°C | 3.7°C | -2.2°C | 20.5°C | -9.4°C | 57 mm | 69% | 3.2 m/s | 4.4 |
| 1989 | 10.5°C | 4.2°C | -2.0°C | 19.2°C | -10.0°C | 27 mm | 62% | 2.4 m/s | 5.1 |
| 1988 | 12.9°C | 5.7°C | -1.4°C | 22.1°C | -5.3°C | 8 mm | 55% | 3.2 m/s | 4.9 |
| 1987 | 13.8°C | 6.8°C | -0.1°C | 26.7°C | -4.4°C | 27 mm | 65% | 3.1 m/s | 5.1 |
| 1986 | 8.6°C | 2.9°C | -2.8°C | 22.2°C | -12.2°C | 32 mm | 67% | 3.2 m/s | 4.6 |
| 1985 | 9.8°C | 4.0°C | -1.9°C | 18.2°C | -7.0°C | 41 mm | 68% | 3.2 m/s | 4.6 |
| 1984 | 11.3°C | 5.0°C | -1.3°C | 25.9°C | -5.2°C | 20 mm | 64% | 2.8 m/s | 5 |
| 1983 | 10.1°C | 4.3°C | -1.5°C | 19.4°C | -7.6°C | 50 mm | 71% | 2.7 m/s | — |
| 1982 | 6.9°C | 0.6°C | -5.7°C | 20.4°C | -19.5°C | 23 mm | 68% | 3.3 m/s | — |
| 1981 | 10.4°C | 4.2°C | -2.0°C | 21.3°C | -9.6°C | 22 mm | 64% | 3.2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 10°C with lows near -1.9°C (mean 4.1°C), based on 45 years of NASA POWER data.
April averages 35 mm of rainfall in Red Deer, about average for rainfall. The wettest on record was 77 mm in 2012.
The hottest April reached 26.7°C in 1987. The coldest dipped to -19.5°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.5°C. Daytime highs moved from 9.7°C to 10.1°C and overnight lows from -2.5°C to -2°C over the same span.
April is close to Red Deer's year-round average and about average for rainfall, so plan for around 10°C daytime highs and -1.9°C at night.
Not quite — April is the 6th coolest month in Red Deer, averaging 4.1°C.
For April in Red Deer, pack warm layers and a jacket for chilly mornings, with typical highs of 10°C and lows of -1.9°C.
Relative humidity in April averages 66% — moderately humid.
Average wind speed in April is 3.1 m/s. The windiest April on record averaged 4.1 m/s (2010).
The wettest April on record was 2012 with 77 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 Red Deer 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.
