July is one of the warmer months of the year in Sylvan Lake, with average highs near 22.4°C and lows around 10.5°C (mean 16.5°C). It is a relatively wet time of year, averaging 97 mm of rainfall and 69% relative humidity across the period.
July is one of the warmer months of the year in Sylvan Lake. Across 45 years of records, the warmest July in Sylvan Lake was 2024 — when the month averaged 20.7°C — while the coldest was 1993 at 13.2°C. Typical July days reach 22.4°C with nights near 10.5°C. The long-term trend is warming, about 0.5°C per decade.
July is a relatively wet time of year in Sylvan Lake, averaging 97 mm of rainfall. The wettest July on record was 1982 with 207 mm, while the driest was 2007 at 37 mm.
Relative humidity in Sylvan Lake during July averages 69%. The most humid July was 1982 at 80%, and the least humid was 2002 at 54%.
July receives about 6 kWh/m²/day of solar energy in Sylvan Lake. The sunniest July was 2007 at 6.8 kWh/m²/day, and the cloudiest was 1993 at 4.9.
Average wind speed in Sylvan Lake during July is 2 m/s. The windiest Julys were 1996, 2002 and 2014 at 2.3 m/s, while the calmest were 2006 and 2022 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.8°C | 15.5°C | 17.2°C | 16.7°C | 17.6°C | +1.8°C |
| Avg High | 21.8°C | 21.2°C | 23.4°C | 22.7°C | 23.5°C | +1.7°C |
| Avg Low | 9.7°C | 9.8°C | 10.9°C | 10.7°C | 11.6°C | +1.9°C |
| Avg Rain | 111 mm | 103 mm | 79 mm | 99 mm | 91 mm | -20 mm |
July temperatures in Sylvan Lake have risen by about 2.1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 1.8°C (1999) to a record high of 35.2°C (2024).
Rainfall in July is a relatively wet time of year, averaging 97 mm, with a wettest year of 207 mm.
One of the best times to visit Sylvan Lake
July is one of the best times to visit Sylvan Lake. Expect days averaging 22.4°C and nights around 10.5°C (mean 16.5°C) — warmer than Sylvan Lake's yearly average — with higher rainfall (97 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 20.3°C | 15.1°C | 9.8°C | 29.7°C | 4.3°C | 114 mm | 75% | 2 m/s | 5.5 |
| 2024 🔥 | 27.4°C | 20.7°C | 14.0°C | 35.2°C | 8.5°C | 47 mm | 60% | 2.2 m/s | 6.4 |
| 2023 | 23.2°C | 17.3°C | 11.3°C | 31.1°C | 6.8°C | 85 mm | 72% | 1.9 m/s | 5.5 |
| 2022 | 23.2°C | 17.4°C | 11.6°C | 29.2°C | 6.5°C | 92 mm | 75% | 1.7 m/s | 6.2 |
| 2021 | 26.3°C | 19.7°C | 13.0°C | 34.9°C | 9.1°C | 67 mm | 63% | 1.9 m/s | 6 |
| 2020 | 20.8°C | 15.5°C | 10.2°C | 27.4°C | 6.1°C | 140 mm | 79% | 2.1 m/s | 6 |
| 2019 | 20.3°C | 15.1°C | 9.9°C | 27.0°C | 3.6°C | 125 mm | 79% | 2 m/s | 5.2 |
| 2018 | 23.6°C | 17.1°C | 10.6°C | 30.8°C | 5.6°C | 86 mm | 66% | 2 m/s | 6.2 |
| 2017 | 24.0°C | 17.4°C | 10.8°C | 31.5°C | 6.4°C | 61 mm | 68% | 2.2 m/s | 6.5 |
| 2016 | 21.8°C | 16.5°C | 11.1°C | 28.1°C | 7.6°C | 98 mm | 72% | 1.9 m/s | 5.4 |
| 2015 | 23.9°C | 17.8°C | 11.6°C | 33.4°C | 7.7°C | 114 mm | 63% | 2.1 m/s | 6.1 |
| 2014 | 25.3°C | 18.6°C | 12.0°C | 31.7°C | 7.2°C | 65 mm | 64% | 2.3 m/s | 6.7 |
| 2013 | 21.4°C | 15.7°C | 9.9°C | 32.9°C | 4.6°C | 88 mm | 72% | 2 m/s | 6.1 |
| 2012 | 24.2°C | 18.3°C | 12.4°C | 31.7°C | 6.6°C | 106 mm | 68% | 2.1 m/s | 5.9 |
| 2011 | 21.0°C | 15.2°C | 9.5°C | 25.5°C | 5.7°C | 123 mm | 72% | 2.2 m/s | 6 |
| 2010 | 21.0°C | 15.3°C | 9.6°C | 28.8°C | 5.5°C | 120 mm | 72% | 2.2 m/s | 5.6 |
| 2009 | 23.0°C | 16.7°C | 10.4°C | 30.6°C | 2.3°C | 83 mm | 65% | 2 m/s | 6.2 |
| 2008 | 21.8°C | 15.9°C | 10.0°C | 29.2°C | 5.7°C | 70 mm | 68% | 2 m/s | 6.2 |
| 2007 | 24.7°C | 18.7°C | 12.6°C | 30.5°C | 7.0°C | 37 mm | 69% | 1.8 m/s | 6.8 |
| 2006 | 25.8°C | 19.2°C | 12.5°C | 32.4°C | 8.4°C | 67 mm | 60% | 1.7 m/s | 6.3 |
| 2005 | 21.6°C | 15.7°C | 9.8°C | 28.8°C | 5.6°C | 75 mm | 69% | 1.9 m/s | 6.2 |
| 2004 | 22.0°C | 16.5°C | 11.0°C | 30.3°C | 4.6°C | 103 mm | 73% | 2.2 m/s | 5.8 |
| 2003 | 24.2°C | 17.4°C | 10.6°C | 31.8°C | 7.3°C | 41 mm | 64% | 2.1 m/s | 6.6 |
| 2002 | 26.0°C | 18.4°C | 10.9°C | 34.5°C | 3.5°C | 49 mm | 54% | 2.3 m/s | 6.4 |
| 2001 | 23.0°C | 16.8°C | 10.6°C | 32.6°C | 6.9°C | 109 mm | 66% | 2.2 m/s | 5.8 |
| 2000 | 21.7°C | 16.2°C | 10.6°C | 26.7°C | 5.5°C | 158 mm | 74% | 1.8 m/s | 6.3 |
| 1999 | 18.7°C | 13.3°C | 8.0°C | 26.7°C | 1.8°C | 190 mm | 77% | 2.1 m/s | 5.6 |
| 1998 | 22.8°C | 17.4°C | 12.0°C | 29.0°C | 6.8°C | 90 mm | 73% | 2 m/s | 6.3 |
| 1997 | 21.6°C | 15.7°C | 9.8°C | 28.1°C | 5.2°C | 86 mm | 70% | 2.2 m/s | 6.3 |
| 1996 | 21.9°C | 15.9°C | 9.9°C | 27.0°C | 6.5°C | 111 mm | 70% | 2.3 m/s | 5.9 |
| 1995 | 20.8°C | 15.4°C | 10.1°C | 26.7°C | 5.7°C | 121 mm | 69% | 1.8 m/s | 5.4 |
| 1994 | 23.8°C | 17.4°C | 11.1°C | 31.7°C | 7.2°C | 65 mm | 66% | 2.1 m/s | 6 |
| 1993 ❄️ | 18.1°C | 13.2°C | 8.3°C | 27.2°C | 4.8°C | 101 mm | 75% | 2 m/s | 4.9 |
| 1992 | 20.5°C | 14.7°C | 9.0°C | 28.0°C | 3.9°C | 71 mm | 68% | 1.9 m/s | 5.6 |
| 1991 | 22.7°C | 16.3°C | 9.9°C | 27.7°C | 6.1°C | 68 mm | 66% | 1.9 m/s | 6.3 |
| 1990 | 20.9°C | 15.5°C | 10.0°C | 29.2°C | 5.0°C | 126 mm | 75% | 2 m/s | 6.2 |
| 1989 | 23.8°C | 17.2°C | 10.7°C | 30.3°C | 6.3°C | 59 mm | 66% | 2.1 m/s | 6.5 |
| 1988 | 22.3°C | 15.9°C | 9.6°C | 32.5°C | 5.8°C | 120 mm | 64% | 2.1 m/s | 5.3 |
| 1987 | 21.6°C | 15.7°C | 9.8°C | 30.8°C | 4.9°C | 116 mm | 70% | 2.1 m/s | 5.2 |
| 1986 | 19.0°C | 13.7°C | 8.4°C | 25.2°C | 4.6°C | 162 mm | 75% | 2.1 m/s | 5.2 |
| 1985 | 24.8°C | 17.6°C | 10.5°C | 32.2°C | 6.7°C | 46 mm | 58% | 2.2 m/s | 6.6 |
| 1984 | 23.4°C | 16.6°C | 9.8°C | 32.6°C | 4.7°C | 52 mm | 60% | 2.2 m/s | 6.3 |
| 1983 | 21.1°C | 15.3°C | 9.4°C | 29.2°C | 5.7°C | 92 mm | 72% | 2.1 m/s | — |
| 1982 🌧️ | 19.6°C | 14.7°C | 9.7°C | 27.0°C | 4.1°C | 207 mm | 80% | 1.9 m/s | — |
| 1981 | 20.5°C | 15.1°C | 9.6°C | 26.6°C | 4.0°C | 142 mm | 74% | 2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 22.4°C with lows near 10.5°C (mean 16.5°C), based on 45 years of NASA POWER data.
July averages 97 mm of rainfall in Sylvan Lake, a relatively wet time of year. The wettest on record was 207 mm in 1982.
The hottest July reached 35.2°C in 2024. The coldest dipped to 1.8°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 2.1°C. Daytime highs moved from 21.9°C to 24.1°C and overnight lows from 9.8°C to 11.9°C over the same span.
July is one of the warmer months of the year in Sylvan Lake and a relatively wet time of year, so plan for around 22.4°C daytime highs and 10.5°C at night.
Not quite — July is the 12th coolest month in Sylvan Lake, averaging 16.5°C.
For July in Sylvan Lake, pack light layers you can adjust through the day, with typical highs of 22.4°C and lows of 10.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 69% — moderately humid.
Average wind speed in July is 2 m/s. The windiest July on record averaged 2.3 m/s (1996).
The wettest July on record was 1982 with 207 mm. On average, July sees 97 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 Sylvan Lake behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
