May is one of the warmer months of the year in St. Albert, with average highs near 16.4°C and lows around 4°C (mean 10.2°C). It is a relatively wet time of year, averaging 64 mm of rainfall and 65% relative humidity across the period.
May is one of the warmer months of the year in St. Albert. Across 45 years of records, the warmest May in St. Albert was 2023 — when the month averaged 15.3°C — while the coldest was 1996 at 7°C. Typical May days reach 16.4°C with nights near 4°C. The long-term trend is warming, about 0.2°C per decade.
May is a relatively wet time of year in St. Albert, averaging 64 mm of rainfall. The wettest May on record was 2016 with 132 mm, while the driest were 1995 and 2011 at 27 mm.
Relative humidity in St. Albert during May averages 65%. The most humid May was 1996 at 73%, and the least humid was 2001 at 54%.
May receives about 5.7 kWh/m²/day of solar energy in St. Albert. The sunniest May was 2015 at 6.6 kWh/m²/day, and the cloudiest was 1984 at 4.6.
Average wind speed in St. Albert during May is 2.9 m/s. The windiest May was 2001 at 3.8 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 | 10.2°C | 10.1°C | 9.6°C | 10.6°C | 10.7°C | +0.5°C |
| Avg High | 16.4°C | 16.3°C | 15.8°C | 16.8°C | 16.9°C | +0.5°C |
| Avg Low | 3.9°C | 3.9°C | 3.5°C | 4.3°C | 4.5°C | +0.6°C |
| Avg Rain | 66 mm | 61 mm | 60 mm | 64 mm | 76 mm | +11 mm |
May temperatures in St. Albert have risen by about 1.4°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -6.8°C (1987) to a record high of 30.4°C (2025).
Rainfall in May is a relatively wet time of year, averaging 64 mm, with a wettest year of 132 mm.
A good time to visit St. Albert
May is a good time to visit St. Albert, with days averaging 16.4°C and nights around 4°C (mean 10.2°C, warmer than St. Albert'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 | 18.9°C | 12.3°C | 5.7°C | 30.4°C | -0.2°C | 89 mm | 67% | 3 m/s | 5.8 |
| 2024 | 15.0°C | 9.3°C | 3.6°C | 25.6°C | -1.6°C | 91 mm | 69% | 3.2 m/s | 5.1 |
| 2023 🔥 | 22.5°C | 15.3°C | 8.1°C | 28.7°C | 2.8°C | 33 mm | 63% | 2.8 m/s | 5.9 |
| 2022 | 15.0°C | 9.2°C | 3.4°C | 21.2°C | -2.0°C | 52 mm | 68% | 2.9 m/s | 5.7 |
| 2021 | 15.1°C | 9.2°C | 3.3°C | 22.5°C | -4.4°C | 88 mm | 69% | 2.9 m/s | 5.6 |
| 2020 | 14.9°C | 9.0°C | 3.1°C | 24.5°C | -2.3°C | 105 mm | 72% | 3.2 m/s | 5.6 |
| 2019 | 15.6°C | 9.6°C | 3.5°C | 26.6°C | -3.5°C | 44 mm | 65% | 2.6 m/s | 5.9 |
| 2018 | 20.2°C | 13.6°C | 6.9°C | 27.5°C | 1.4°C | 56 mm | 64% | 2.9 m/s | 6.4 |
| 2017 | 17.7°C | 11.6°C | 5.5°C | 27.2°C | -0.9°C | 78 mm | 70% | 3 m/s | 5.9 |
| 2016 🌧️ | 17.9°C | 11.4°C | 4.9°C | 28.5°C | -1.0°C | 132 mm | 63% | 2.9 m/s | 5.5 |
| 2015 | 16.8°C | 9.8°C | 2.8°C | 25.8°C | -3.6°C | 33 mm | 59% | 2.9 m/s | 6.6 |
| 2014 | 14.5°C | 8.9°C | 3.3°C | 24.6°C | -3.9°C | 56 mm | 68% | 2.5 m/s | 5.5 |
| 2013 | 18.6°C | 12.2°C | 5.7°C | 27.7°C | -5.2°C | 51 mm | 65% | 2.9 m/s | 6.1 |
| 2012 | 15.9°C | 9.7°C | 3.5°C | 24.0°C | -0.6°C | 69 mm | 62% | 3 m/s | 5.8 |
| 2011 | 17.1°C | 10.8°C | 4.5°C | 23.2°C | -0.2°C | 27 mm | 62% | 3.1 m/s | 6 |
| 2010 | 13.6°C | 8.2°C | 2.8°C | 28.8°C | -4.7°C | 94 mm | 66% | 2.8 m/s | 4.8 |
| 2009 | 14.8°C | 8.4°C | 1.9°C | 23.2°C | -4.9°C | 34 mm | 64% | 2.9 m/s | 6 |
| 2008 | 17.0°C | 10.8°C | 4.6°C | 26.0°C | -3.0°C | 56 mm | 66% | 3 m/s | 5.7 |
| 2007 | 15.4°C | 9.4°C | 3.5°C | 24.5°C | -0.1°C | 90 mm | 72% | 3.2 m/s | 5.5 |
| 2006 | 17.2°C | 11.3°C | 5.4°C | 29.5°C | -2.2°C | 100 mm | 67% | 3 m/s | 5.4 |
| 2005 | 16.7°C | 10.2°C | 3.7°C | 23.4°C | -4.7°C | 61 mm | 64% | 3 m/s | 6.2 |
| 2004 | 13.9°C | 8.0°C | 2.1°C | 24.2°C | -5.7°C | 52 mm | 64% | 2.8 m/s | 5.4 |
| 2003 | 14.9°C | 9.2°C | 3.5°C | 26.7°C | -3.1°C | 73 mm | 67% | 3 m/s | 5.6 |
| 2002 | 14.7°C | 8.3°C | 1.9°C | 23.3°C | -6.3°C | 31 mm | 59% | 3.2 m/s | 6 |
| 2001 | 18.5°C | 12.0°C | 5.5°C | 27.4°C | -0.9°C | 37 mm | 54% | 3.8 m/s | 5.9 |
| 2000 | 14.7°C | 8.8°C | 2.9°C | 19.8°C | -1.0°C | 63 mm | 63% | 2.9 m/s | 5.4 |
| 1999 | 14.7°C | 9.0°C | 3.2°C | 26.9°C | -2.8°C | 79 mm | 66% | 3 m/s | 5.3 |
| 1998 | 20.9°C | 13.8°C | 6.8°C | 26.8°C | 1.0°C | 30 mm | 57% | 2.8 m/s | 6.5 |
| 1997 | 15.6°C | 9.7°C | 3.8°C | 24.7°C | -3.3°C | 55 mm | 69% | 2.7 m/s | 5.3 |
| 1996 ❄️ | 12.0°C | 7.0°C | 1.9°C | 21.6°C | -5.2°C | 60 mm | 73% | 2.3 m/s | 4.7 |
| 1995 | 17.0°C | 10.2°C | 3.3°C | 29.0°C | -3.5°C | 27 mm | 62% | 2.5 m/s | 6 |
| 1994 | 17.3°C | 11.0°C | 4.7°C | 24.7°C | -0.8°C | 63 mm | 63% | 2.9 m/s | 5.6 |
| 1993 | 18.1°C | 11.3°C | 4.6°C | 30.0°C | -0.6°C | 69 mm | 63% | 3.1 m/s | 5.9 |
| 1992 | 15.3°C | 9.2°C | 3.2°C | 26.1°C | -2.7°C | 60 mm | 66% | 2.8 m/s | 5.4 |
| 1991 | 16.4°C | 10.1°C | 3.7°C | 23.8°C | -3.8°C | 119 mm | 68% | 2.7 m/s | 5.9 |
| 1990 | 15.7°C | 9.6°C | 3.5°C | 23.9°C | -4.5°C | 46 mm | 68% | 2.7 m/s | 6 |
| 1989 | 15.9°C | 9.7°C | 3.5°C | 24.9°C | -1.9°C | 73 mm | 64% | 2.9 m/s | 5.8 |
| 1988 | 19.3°C | 12.2°C | 5.1°C | 29.6°C | -2.1°C | 35 mm | 57% | 3 m/s | 5.5 |
| 1987 | 17.3°C | 10.7°C | 4.1°C | 26.5°C | -6.8°C | 92 mm | 65% | 2.6 m/s | 5.9 |
| 1986 | 16.5°C | 10.4°C | 4.3°C | 29.2°C | -3.6°C | 90 mm | 71% | 2.9 m/s | 5.8 |
| 1985 | 17.5°C | 11.1°C | 4.8°C | 25.2°C | -1.2°C | 52 mm | 65% | 2.7 m/s | 6.2 |
| 1984 | 13.4°C | 8.1°C | 2.9°C | 20.6°C | -2.0°C | 96 mm | 70% | 3.1 m/s | 4.6 |
| 1983 | 15.5°C | 9.3°C | 3.2°C | 26.1°C | -4.2°C | 34 mm | 68% | 2.9 m/s | — |
| 1982 | 15.6°C | 9.0°C | 2.3°C | 24.2°C | -4.0°C | 49 mm | 65% | 3.2 m/s | — |
| 1981 | 16.8°C | 11.0°C | 5.1°C | 24.2°C | -1.3°C | 71 mm | 68% | 3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 16.4°C with lows near 4°C (mean 10.2°C), based on 45 years of NASA POWER data.
May averages 64 mm of rainfall in St. Albert, a relatively wet time of year. The wettest on record was 132 mm in 2016.
The hottest May reached 30.4°C in 2025. The coldest dipped to -6.8°C in 1987.
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 15.8°C to 17.3°C and overnight lows from 3.7°C to 4.8°C over the same span.
May is one of the warmer months of the year in St. Albert and a relatively wet time of year, so plan for around 16.4°C daytime highs and 4°C at night.
Not quite — May is the 8th coolest month in St. Albert, averaging 10.2°C.
For May in St. Albert, pack warm layers and a jacket for chilly mornings, with typical highs of 16.4°C and lows of 4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 65% — moderately humid.
Average wind speed in May is 2.9 m/s. The windiest May on record averaged 3.8 m/s (2001).
The wettest May on record was 2016 with 132 mm. On average, May sees 64 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 St. Albert 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.
