July is one of the warmer months of the year in Lac-Brome, with average highs near 23.9°C and lows around 14.6°C (mean 19.3°C). It is a relatively wet time of year, averaging 118 mm of rainfall and 82% relative humidity across the period.
July is one of the warmer months of the year in Lac-Brome. Across 45 years of records, the warmest July in Lac-Brome was 2020 — when the month averaged 21.5°C — while the coldest was 1992 at 16.2°C. Typical July days reach 23.9°C with nights near 14.6°C. The long-term trend is warming, about 0.5°C per decade.
July is a relatively wet time of year in Lac-Brome, averaging 118 mm of rainfall. The wettest July on record was 2023 with 257 mm, while the driest was 1991 at 58 mm.
Relative humidity in Lac-Brome during July averages 82%. The most humid July was 2009 at 85%, and the least humid was 2022 at 78%.
July receives about 5.7 kWh/m²/day of solar energy in Lac-Brome. The sunniest July was 2018 at 6.5 kWh/m²/day, and the cloudiest was 2009 at 4.9.
Average wind speed in Lac-Brome during July is 0.3 m/s. The windiest Julys were 2022, 2024 and 2025, among others at 0.3 m/s, while the calmest were 2017, 2019 and 2023, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.7°C | 18.8°C | 18.9°C | 19.9°C | 20.4°C | +1.7°C |
| Avg High | 23.5°C | 23.4°C | 23.4°C | 24.6°C | 25.1°C | +1.6°C |
| Avg Low | 13.8°C | 14.2°C | 14.3°C | 15.2°C | 15.8°C | +2°C |
| Avg Rain | 99 mm | 134 mm | 125 mm | 100 mm | 140 mm | +40 mm |
July temperatures in Lac-Brome have risen by about 1.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 5.5°C (1992) to a record high of 34°C (2018).
Rainfall in July is a relatively wet time of year, averaging 118 mm, with a wettest year of 257 mm.
One of the best times to visit Lac-Brome
July is one of the best times to visit Lac-Brome. Expect days averaging 23.9°C and nights around 14.6°C (mean 19.3°C) — warmer than Lac-Brome's yearly average — with higher rainfall (118 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 | 25.5°C | 20.6°C | 15.8°C | 29.5°C | 8.6°C | 95 mm | 81% | 0.3 m/s | 5.8 |
| 2024 | 26.0°C | 21.3°C | 16.6°C | 29.9°C | 12.6°C | 181 mm | 81% | 0.3 m/s | 5.9 |
| 2023 🌧️ | 25.4°C | 21.0°C | 16.7°C | 32.6°C | 11.5°C | 257 mm | 84% | 0.2 m/s | 5.1 |
| 2022 | 24.6°C | 19.6°C | 14.7°C | 28.6°C | 8.8°C | 84 mm | 78% | 0.3 m/s | 6.2 |
| 2021 | 22.7°C | 18.4°C | 14.1°C | 28.7°C | 9.0°C | 109 mm | 81% | 0.3 m/s | 5 |
| 2020 🔥 | 26.1°C | 21.5°C | 17.0°C | 29.9°C | 13.3°C | 111 mm | 82% | 0.3 m/s | 5.9 |
| 2019 | 25.7°C | 20.9°C | 16.1°C | 29.3°C | 11.3°C | 72 mm | 80% | 0.2 m/s | 6.2 |
| 2018 | 26.0°C | 21.0°C | 16.0°C | 34.0°C | 9.8°C | 93 mm | 79% | 0.3 m/s | 6.5 |
| 2017 | 23.3°C | 18.8°C | 14.3°C | 26.6°C | 9.1°C | 97 mm | 83% | 0.2 m/s | 5.5 |
| 2016 | 24.4°C | 19.5°C | 14.6°C | 28.8°C | 10.4°C | 96 mm | 80% | 0.3 m/s | 5.8 |
| 2015 | 23.6°C | 18.8°C | 14.1°C | 30.4°C | 7.7°C | 127 mm | 82% | 0.3 m/s | 5.7 |
| 2014 | 23.3°C | 18.9°C | 14.4°C | 28.8°C | 9.9°C | 131 mm | 82% | 0.3 m/s | 5.5 |
| 2013 | 25.1°C | 20.5°C | 15.8°C | 31.5°C | 7.3°C | 123 mm | 83% | 0.2 m/s | 6 |
| 2012 | 24.7°C | 19.7°C | 14.8°C | 30.3°C | 10.0°C | 86 mm | 79% | 0.3 m/s | 6.4 |
| 2011 | 24.8°C | 20.2°C | 15.6°C | 29.6°C | 12.1°C | 80 mm | 81% | 0.3 m/s | 6.2 |
| 2010 | 25.3°C | 20.8°C | 16.4°C | 31.7°C | 9.8°C | 93 mm | 80% | 0.3 m/s | 5.9 |
| 2009 | 22.1°C | 17.7°C | 13.4°C | 27.4°C | 8.5°C | 152 mm | 85% | 0.2 m/s | 4.9 |
| 2008 | 24.0°C | 19.5°C | 15.0°C | 28.4°C | 11.0°C | 172 mm | 83% | 0.3 m/s | 5.4 |
| 2007 | 22.7°C | 18.2°C | 13.8°C | 28.7°C | 8.1°C | 129 mm | 83% | 0.3 m/s | 5.5 |
| 2006 | 25.0°C | 20.6°C | 16.2°C | 29.1°C | 12.1°C | 117 mm | 84% | 0.2 m/s | 5.7 |
| 2005 | 24.9°C | 20.0°C | 15.1°C | 31.8°C | 10.6°C | 134 mm | 82% | 0.2 m/s | 6.1 |
| 2004 | 23.6°C | 19.1°C | 14.6°C | 27.7°C | 10.1°C | 157 mm | 83% | 0.3 m/s | 5.3 |
| 2003 | 24.0°C | 19.5°C | 14.9°C | 27.8°C | 10.9°C | 108 mm | 82% | 0.2 m/s | 5.4 |
| 2002 | 23.6°C | 18.9°C | 14.2°C | 30.7°C | 9.0°C | 103 mm | 83% | 0.3 m/s | 5.9 |
| 2001 | 22.3°C | 17.7°C | 13.0°C | 29.1°C | 6.7°C | 85 mm | 79% | 0.3 m/s | 5.7 |
| 2000 | 22.2°C | 17.5°C | 12.9°C | 26.5°C | 8.7°C | 90 mm | 83% | 0.3 m/s | 5.5 |
| 1999 | 25.1°C | 20.3°C | 15.4°C | 29.8°C | 10.9°C | 123 mm | 80% | 0.3 m/s | 5.9 |
| 1998 | 23.1°C | 18.9°C | 14.7°C | 28.5°C | 9.5°C | 169 mm | 83% | 0.3 m/s | 5.7 |
| 1997 | 23.0°C | 18.1°C | 13.2°C | 27.2°C | 8.8°C | 141 mm | 81% | 0.3 m/s | 5.8 |
| 1996 | 22.4°C | 18.1°C | 13.8°C | 26.3°C | 10.1°C | 183 mm | 85% | 0.3 m/s | 5.1 |
| 1995 | 24.7°C | 19.9°C | 15.1°C | 29.9°C | 10.7°C | 145 mm | 81% | 0.2 m/s | 5.6 |
| 1994 | 24.5°C | 20.2°C | 15.8°C | 28.8°C | 11.2°C | 125 mm | 84% | 0.2 m/s | 5.5 |
| 1993 | 23.5°C | 19.2°C | 14.8°C | 29.2°C | 10.6°C | 140 mm | 83% | 0.3 m/s | 5.5 |
| 1992 ❄️ | 20.8°C | 16.2°C | 11.6°C | 25.2°C | 5.5°C | 123 mm | 83% | 0.3 m/s | 5.4 |
| 1991 | 23.1°C | 18.3°C | 13.6°C | 29.4°C | 8.2°C | 58 mm | 81% | 0.3 m/s | 6.1 |
| 1990 | 23.4°C | 18.7°C | 14.0°C | 28.0°C | 8.9°C | 137 mm | 81% | 0.3 m/s | 5.8 |
| 1989 | 23.7°C | 18.8°C | 13.8°C | 28.6°C | 9.3°C | 76 mm | 81% | 0.2 m/s | 6.3 |
| 1988 | 24.7°C | 19.8°C | 14.9°C | 30.6°C | 7.8°C | 95 mm | 81% | 0.2 m/s | 5.4 |
| 1987 | 24.0°C | 19.2°C | 14.5°C | 29.5°C | 7.9°C | 106 mm | 81% | 0.3 m/s | 5.7 |
| 1986 | 22.4°C | 17.7°C | 13.0°C | 28.4°C | 6.5°C | 111 mm | 83% | 0.3 m/s | 5.3 |
| 1985 | 22.8°C | 17.9°C | 13.0°C | 26.1°C | 8.3°C | 128 mm | 81% | 0.3 m/s | 5.9 |
| 1984 | 23.0°C | 18.5°C | 14.0°C | 26.9°C | 9.1°C | 112 mm | 81% | 0.3 m/s | 5 |
| 1983 | 23.5°C | 18.7°C | 13.9°C | 28.8°C | 8.0°C | 93 mm | 83% | 0.3 m/s | — |
| 1982 | 23.2°C | 18.1°C | 13.0°C | 28.3°C | 6.1°C | 70 mm | 79% | 0.3 m/s | — |
| 1981 | 23.8°C | 19.2°C | 14.5°C | 28.1°C | 9.6°C | 104 mm | 81% | 0.2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 23.9°C with lows near 14.6°C (mean 19.3°C), based on 45 years of NASA POWER data.
July averages 118 mm of rainfall in Lac-Brome, a relatively wet time of year. The wettest on record was 257 mm in 2023.
The hottest July reached 34°C in 2018. The coldest dipped to 5.5°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.7°C. Daytime highs moved from 23.3°C to 24.8°C and overnight lows from 13.7°C to 15.6°C over the same span.
July is one of the warmer months of the year in Lac-Brome and a relatively wet time of year, so plan for around 23.9°C daytime highs and 14.6°C at night.
Not quite — July is the 12th coolest month in Lac-Brome, averaging 19.3°C.
For July in Lac-Brome, pack light layers you can adjust through the day, with typical highs of 23.9°C and lows of 14.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 82% — quite humid.
Average wind speed in July is 0.3 m/s. The windiest July on record averaged 0.3 m/s (1982).
The wettest July on record was 2023 with 257 mm. On average, July sees 118 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 Lac-Brome 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.
