May is one of the warmer months of the year in Morinville, with average highs near 16.3°C and lows around 3.8°C (mean 10.1°C). It is a relatively wet time of year, averaging 63 mm of rainfall and 66% relative humidity across the period.
May is one of the warmer months of the year in Morinville. Across 45 years of records, the warmest May in Morinville was 2023 — when the month averaged 15.4°C — while the coldest was 1996 at 6.9°C. Typical May days reach 16.3°C with nights near 3.8°C. The long-term trend is warming, about 0.2°C per decade.
May is a relatively wet time of year in Morinville, averaging 63 mm of rainfall. The wettest May on record was 2016 with 137 mm, while the driest was 1995 at 16 mm.
Relative humidity in Morinville during May averages 66%. The most humid Mays were 1996, 2007 and 2020 at 73%, and the least humid was 2001 at 56%.
May receives about 5.7 kWh/m²/day of solar energy in Morinville. The sunniest May was 2015 at 6.6 kWh/m²/day, and the cloudiest was 1984 at 4.6.
Average wind speed in Morinville during May is 2.8 m/s. The windiest May was 2001 at 3.6 m/s, while the calmest was 1996 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.0°C | 10.1°C | 9.4°C | 10.5°C | 10.6°C | +0.6°C |
| Avg High | 16.3°C | 16.3°C | 15.6°C | 16.8°C | 16.8°C | +0.5°C |
| Avg Low | 3.7°C | 3.8°C | 3.3°C | 4.2°C | 4.4°C | +0.7°C |
| Avg Rain | 66 mm | 55 mm | 65 mm | 59 mm | 74 mm | +8 mm |
May temperatures in Morinville have risen by about 1.4°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -6.4°C (2002) to a record high of 30.7°C (2025).
Rainfall in May is a relatively wet time of year, averaging 63 mm, with a wettest year of 137 mm.
A good time to visit Morinville
May is a good time to visit Morinville, with days averaging 16.3°C and nights around 3.8°C (mean 10.1°C, warmer than Morinville's yearly average) and moderate rainfall. August and July are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 18.8°C | 12.2°C | 5.5°C | 30.7°C | -0.1°C | 84 mm | 67% | 2.9 m/s | 5.8 |
| 2024 | 15.2°C | 9.4°C | 3.7°C | 26.4°C | -1.8°C | 72 mm | 68% | 3.1 m/s | 5.1 |
| 2023 🔥 | 22.8°C | 15.4°C | 8.1°C | 29.1°C | 2.5°C | 32 mm | 62% | 2.8 m/s | 5.9 |
| 2022 | 14.3°C | 8.7°C | 3.1°C | 20.7°C | -2.9°C | 66 mm | 71% | 2.9 m/s | 5.7 |
| 2021 | 14.9°C | 8.9°C | 2.9°C | 22.1°C | -4.9°C | 86 mm | 71% | 2.9 m/s | 5.6 |
| 2020 | 14.9°C | 9.1°C | 3.3°C | 23.7°C | -2.6°C | 103 mm | 73% | 3.1 m/s | 5.6 |
| 2019 | 15.7°C | 9.4°C | 3.2°C | 27.8°C | -4.7°C | 34 mm | 66% | 2.6 m/s | 5.9 |
| 2018 | 20.1°C | 13.3°C | 6.5°C | 28.1°C | 0.3°C | 48 mm | 65% | 2.8 m/s | 6.4 |
| 2017 | 17.4°C | 11.3°C | 5.1°C | 27.4°C | -2.1°C | 71 mm | 73% | 2.9 m/s | 5.9 |
| 2016 🌧️ | 18.5°C | 11.8°C | 5.1°C | 29.1°C | -1.2°C | 137 mm | 63% | 2.8 m/s | 5.5 |
| 2015 | 16.7°C | 9.6°C | 2.5°C | 26.2°C | -4.4°C | 31 mm | 60% | 2.8 m/s | 6.6 |
| 2014 | 14.1°C | 8.5°C | 2.9°C | 23.9°C | -4.2°C | 65 mm | 70% | 2.5 m/s | 5.5 |
| 2013 | 18.6°C | 12.0°C | 5.4°C | 27.0°C | -5.6°C | 32 mm | 67% | 2.9 m/s | 6.1 |
| 2012 | 15.9°C | 9.6°C | 3.4°C | 23.5°C | -0.8°C | 70 mm | 62% | 3 m/s | 5.8 |
| 2011 | 17.4°C | 11.1°C | 4.8°C | 23.3°C | -1.0°C | 25 mm | 61% | 3 m/s | 6 |
| 2010 | 14.0°C | 8.5°C | 3.1°C | 28.8°C | -4.6°C | 80 mm | 66% | 2.5 m/s | 4.8 |
| 2009 | 14.3°C | 7.9°C | 1.6°C | 21.9°C | -4.9°C | 39 mm | 66% | 2.7 m/s | 6 |
| 2008 | 17.0°C | 10.7°C | 4.5°C | 25.2°C | -3.6°C | 59 mm | 66% | 3 m/s | 5.7 |
| 2007 | 15.1°C | 9.2°C | 3.4°C | 24.3°C | -0.4°C | 94 mm | 73% | 2.8 m/s | 5.5 |
| 2006 | 16.9°C | 11.1°C | 5.2°C | 29.1°C | -2.4°C | 118 mm | 69% | 2.9 m/s | 5.4 |
| 2005 | 16.6°C | 10.0°C | 3.4°C | 23.6°C | -5.0°C | 61 mm | 66% | 2.9 m/s | 6.2 |
| 2004 | 13.7°C | 7.7°C | 1.6°C | 24.4°C | -5.0°C | 61 mm | 65% | 2.7 m/s | 5.4 |
| 2003 | 15.0°C | 9.2°C | 3.5°C | 26.5°C | -3.4°C | 66 mm | 67% | 2.9 m/s | 5.6 |
| 2002 | 15.0°C | 8.4°C | 1.9°C | 24.1°C | -6.4°C | 20 mm | 58% | 3.2 m/s | 6 |
| 2001 | 18.3°C | 11.7°C | 5.1°C | 27.0°C | -1.2°C | 45 mm | 56% | 3.6 m/s | 5.9 |
| 2000 | 14.2°C | 8.4°C | 2.6°C | 19.1°C | -0.7°C | 87 mm | 63% | 2.8 m/s | 5.4 |
| 1999 | 14.6°C | 8.9°C | 3.1°C | 27.1°C | -2.8°C | 75 mm | 67% | 2.9 m/s | 5.3 |
| 1998 | 21.0°C | 13.9°C | 6.7°C | 26.5°C | 0.2°C | 26 mm | 57% | 2.7 m/s | 6.5 |
| 1997 | 15.2°C | 9.4°C | 3.5°C | 24.3°C | -3.0°C | 52 mm | 71% | 2.7 m/s | 5.3 |
| 1996 ❄️ | 11.9°C | 6.9°C | 1.8°C | 21.0°C | -5.4°C | 62 mm | 73% | 2.3 m/s | 4.7 |
| 1995 | 17.3°C | 10.3°C | 3.3°C | 29.4°C | -3.9°C | 16 mm | 62% | 2.4 m/s | 6 |
| 1994 | 17.3°C | 10.8°C | 4.4°C | 24.9°C | -1.1°C | 61 mm | 64% | 2.8 m/s | 5.6 |
| 1993 | 18.0°C | 11.1°C | 4.3°C | 28.7°C | -0.9°C | 57 mm | 65% | 3 m/s | 5.9 |
| 1992 | 15.2°C | 9.2°C | 3.2°C | 25.5°C | -2.0°C | 44 mm | 66% | 2.8 m/s | 5.4 |
| 1991 | 16.5°C | 10.1°C | 3.7°C | 23.8°C | -4.0°C | 120 mm | 69% | 2.6 m/s | 5.9 |
| 1990 | 16.0°C | 9.9°C | 3.7°C | 24.5°C | -4.6°C | 37 mm | 68% | 2.6 m/s | 6 |
| 1989 | 16.1°C | 9.7°C | 3.3°C | 24.8°C | -1.8°C | 77 mm | 65% | 2.8 m/s | 5.8 |
| 1988 | 19.2°C | 12.0°C | 4.7°C | 29.7°C | -2.7°C | 44 mm | 58% | 3 m/s | 5.5 |
| 1987 | 17.0°C | 10.4°C | 3.9°C | 25.5°C | -5.3°C | 79 mm | 67% | 2.6 m/s | 5.9 |
| 1986 | 16.4°C | 10.3°C | 4.3°C | 28.4°C | -3.2°C | 88 mm | 72% | 2.7 m/s | 5.8 |
| 1985 | 17.3°C | 11.0°C | 4.6°C | 24.8°C | -0.8°C | 50 mm | 67% | 2.6 m/s | 6.2 |
| 1984 | 13.1°C | 7.9°C | 2.7°C | 20.2°C | -2.5°C | 114 mm | 72% | 2.9 m/s | 4.6 |
| 1983 | 15.3°C | 9.0°C | 2.7°C | 26.4°C | -4.2°C | 34 mm | 69% | 2.8 m/s | — |
| 1982 | 15.4°C | 8.8°C | 2.2°C | 23.2°C | -3.8°C | 45 mm | 67% | 3 m/s | — |
| 1981 | 16.8°C | 10.9°C | 5.1°C | 23.8°C | -1.3°C | 62 mm | 69% | 2.9 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 16.3°C with lows near 3.8°C (mean 10.1°C), based on 45 years of NASA POWER data.
May averages 63 mm of rainfall in Morinville, a relatively wet time of year. The wettest on record was 137 mm in 2016.
The hottest May reached 30.7°C in 2025. The coldest dipped to -6.4°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.4°C. Daytime highs moved from 15.6°C to 17.2°C and overnight lows from 3.5°C to 4.7°C over the same span.
May is one of the warmer months of the year in Morinville and a relatively wet time of year, so plan for around 16.3°C daytime highs and 3.8°C at night.
Not quite — May is the 8th coolest month in Morinville, averaging 10.1°C.
For May in Morinville, pack warm layers and a jacket for chilly mornings, with typical highs of 16.3°C and lows of 3.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 66% — moderately humid.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.6 m/s (2001).
The wettest May on record was 2016 with 137 mm. On average, May sees 63 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 Morinville behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
