August is one of the warmer months of the year in Trail, with average highs near 24.3°C and lows around 10.4°C (mean 17.4°C). It is one of the drier months, averaging 29 mm of rainfall and 58% relative humidity across the period.
August is one of the warmer months of the year in Trail. Across 45 years of records, the warmest August in Trail was 2022 — when the month averaged 20.1°C — while the coldest was 1995 at 14.1°C. Typical August days reach 24.3°C with nights near 10.4°C. The long-term trend is warming, about 0.3°C per decade.
August is one of the drier months in Trail, averaging 29 mm of rainfall. The wettest August on record was 2023 with 124 mm, while the driest was 2011 at 4 mm.
Relative humidity in Trail during August averages 58%. The most humid August was 2014 at 67%, and the least humid was 2001 at 45%.
August receives about 5.4 kWh/m²/day of solar energy in Trail. The sunniest Augusts were 2011 and 2012 at 6.3 kWh/m²/day, and the cloudiest was 2021 at 4.4.
Average wind speed in Trail during August is 0.3 m/s. The windiest Augusts were 2006, 2011 and 2012 at 0.4 m/s, while the calmest was 2025 at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.9°C | 16.9°C | 17.7°C | 17.5°C | 18.1°C | +1.2°C |
| Avg High | 23.9°C | 23.7°C | 25.0°C | 24.4°C | 24.9°C | +1°C |
| Avg Low | 10.0°C | 10.1°C | 10.4°C | 10.6°C | 11.4°C | +1.4°C |
| Avg Rain | 37 mm | 27 mm | 21 mm | 21 mm | 51 mm | +14 mm |
August temperatures in Trail have risen by about 1.4°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 0.8°C (1992) to a record high of 37.4°C (2018).
Rainfall in August is one of the drier months, averaging 29 mm, with a wettest year of 124 mm.
One of the best times to visit Trail
August is one of the best times to visit Trail. Expect days averaging 24.3°C and nights around 10.4°C (mean 17.4°C) — warmer than Trail's yearly average — with low rainfall (29 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 | 24.5°C | 18.2°C | 11.9°C | 30.0°C | 7.2°C | 49 mm | 66% | 0.2 m/s | 5.1 |
| 2024 | 24.8°C | 17.8°C | 10.9°C | 32.8°C | 4.2°C | 36 mm | 63% | 0.3 m/s | 5.1 |
| 2023 🌧️ | 24.5°C | 17.9°C | 11.4°C | 34.0°C | 4.9°C | 124 mm | 66% | 0.3 m/s | 5.2 |
| 2022 🔥 | 27.2°C | 20.1°C | 13.0°C | 32.5°C | 5.8°C | 15 mm | 59% | 0.3 m/s | 5.7 |
| 2021 | 23.8°C | 17.3°C | 10.7°C | 32.0°C | 2.2°C | 65 mm | 62% | 0.3 m/s | 4.4 |
| 2020 | 24.6°C | 17.4°C | 10.3°C | 33.4°C | 4.0°C | 17 mm | 58% | 0.3 m/s | 6.1 |
| 2019 | 24.7°C | 17.8°C | 10.8°C | 31.6°C | 6.6°C | 29 mm | 59% | 0.3 m/s | 5.7 |
| 2018 | 24.0°C | 17.4°C | 10.8°C | 37.4°C | 6.1°C | 12 mm | 61% | 0.3 m/s | 5.1 |
| 2017 | 25.9°C | 18.5°C | 11.2°C | 31.1°C | 6.7°C | 12 mm | 59% | 0.3 m/s | 5.6 |
| 2016 | 24.1°C | 16.9°C | 9.6°C | 30.1°C | 6.3°C | 18 mm | 62% | 0.3 m/s | 5.4 |
| 2015 | 24.9°C | 17.8°C | 10.8°C | 33.8°C | 3.8°C | 25 mm | 55% | 0.3 m/s | 5 |
| 2014 | 23.5°C | 17.4°C | 11.2°C | 29.6°C | 5.9°C | 49 mm | 67% | 0.3 m/s | 5 |
| 2013 | 24.0°C | 17.5°C | 11.1°C | 28.0°C | 6.5°C | 26 mm | 65% | 0.3 m/s | 5.1 |
| 2012 | 24.9°C | 17.8°C | 10.7°C | 31.4°C | 4.5°C | 10 mm | 58% | 0.4 m/s | 6.3 |
| 2011 | 25.3°C | 18.0°C | 10.8°C | 30.7°C | 5.1°C | 4 mm | 53% | 0.4 m/s | 6.3 |
| 2010 | 23.0°C | 16.1°C | 9.2°C | 30.1°C | 1.8°C | 24 mm | 58% | 0.3 m/s | 5.4 |
| 2009 | 25.5°C | 18.1°C | 10.7°C | 33.3°C | 5.3°C | 21 mm | 54% | 0.3 m/s | 5.6 |
| 2008 | 24.1°C | 16.9°C | 9.7°C | 35.8°C | 2.4°C | 41 mm | 56% | 0.3 m/s | 5.2 |
| 2007 | 24.1°C | 16.7°C | 9.3°C | 31.8°C | 4.5°C | 15 mm | 51% | 0.3 m/s | 5.5 |
| 2006 | 24.6°C | 17.3°C | 10.0°C | 30.9°C | 4.5°C | 8 mm | 50% | 0.4 m/s | 5.7 |
| 2005 | 25.0°C | 17.5°C | 10.0°C | 31.6°C | 3.9°C | 17 mm | 51% | 0.3 m/s | 6.1 |
| 2004 | 25.0°C | 18.5°C | 12.0°C | 34.2°C | 7.7°C | 69 mm | 60% | 0.3 m/s | 4.8 |
| 2003 | 27.0°C | 19.5°C | 12.0°C | 33.4°C | 6.9°C | 7 mm | 47% | 0.3 m/s | 5.8 |
| 2002 | 23.3°C | 16.3°C | 9.3°C | 28.9°C | 4.3°C | 9 mm | 54% | 0.3 m/s | 5.8 |
| 2001 | 27.2°C | 19.1°C | 11.0°C | 34.1°C | 5.2°C | 15 mm | 45% | 0.3 m/s | 5.9 |
| 2000 | 24.0°C | 17.0°C | 9.9°C | 30.4°C | 3.9°C | 7 mm | 52% | 0.3 m/s | 5.9 |
| 1999 | 23.8°C | 17.2°C | 10.6°C | 30.1°C | 3.0°C | 45 mm | 66% | 0.3 m/s | 5.2 |
| 1998 | 26.3°C | 18.9°C | 11.5°C | 33.4°C | 5.4°C | 14 mm | 56% | 0.3 m/s | 6.1 |
| 1997 | 22.7°C | 16.6°C | 10.5°C | 31.0°C | 4.9°C | 21 mm | 65% | 0.3 m/s | 5.5 |
| 1996 | 23.5°C | 16.6°C | 9.7°C | 33.2°C | 4.8°C | 26 mm | 59% | 0.3 m/s | 5.6 |
| 1995 ❄️ | 20.5°C | 14.1°C | 7.7°C | 28.5°C | 3.2°C | 33 mm | 60% | 0.3 m/s | 4.6 |
| 1994 | 26.0°C | 18.3°C | 10.5°C | 33.3°C | 3.8°C | 8 mm | 48% | 0.3 m/s | 5.6 |
| 1993 | 21.5°C | 14.8°C | 8.0°C | 27.5°C | 2.3°C | 43 mm | 64% | 0.3 m/s | 5.2 |
| 1992 | 24.4°C | 17.3°C | 10.2°C | 32.6°C | 0.8°C | 8 mm | 50% | 0.3 m/s | 5.5 |
| 1991 | 24.2°C | 17.9°C | 11.7°C | 29.5°C | 5.9°C | 29 mm | 61% | 0.3 m/s | 5.6 |
| 1990 | 23.8°C | 17.4°C | 10.9°C | 31.5°C | 4.2°C | 40 mm | 62% | 0.3 m/s | 5.3 |
| 1989 | 21.8°C | 15.5°C | 9.2°C | 31.6°C | 4.5°C | 77 mm | 63% | 0.3 m/s | 4.5 |
| 1988 | 25.1°C | 17.4°C | 9.7°C | 33.7°C | 5.4°C | 6 mm | 46% | 0.3 m/s | 5.5 |
| 1987 | 23.0°C | 15.8°C | 8.6°C | 31.1°C | 4.0°C | 27 mm | 56% | 0.3 m/s | 5.2 |
| 1986 | 26.9°C | 19.0°C | 11.0°C | 33.0°C | 4.4°C | 13 mm | 51% | 0.3 m/s | 6.1 |
| 1985 | 22.3°C | 15.4°C | 8.4°C | 28.4°C | 4.3°C | 34 mm | 53% | 0.3 m/s | 5.1 |
| 1984 | 23.9°C | 16.8°C | 9.8°C | 30.6°C | 2.6°C | 18 mm | 58% | 0.3 m/s | 5.3 |
| 1983 | 24.1°C | 17.9°C | 11.7°C | 33.8°C | 7.6°C | 80 mm | 66% | 0.3 m/s | — |
| 1982 | 21.9°C | 15.8°C | 9.8°C | 29.9°C | 5.9°C | 56 mm | 65% | 0.3 m/s | — |
| 1981 | 25.7°C | 18.8°C | 12.0°C | 30.0°C | 6.3°C | 20 mm | 58% | 0.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 24.3°C with lows near 10.4°C (mean 17.4°C), based on 45 years of NASA POWER data.
August averages 29 mm of rainfall in Trail, one of the drier months. The wettest on record was 124 mm in 2023.
The hottest August reached 37.4°C in 2018. The coldest dipped to 0.8°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.4°C. Daytime highs moved from 23.6°C to 25°C and overnight lows from 10.3°C to 11.6°C over the same span.
August is one of the warmer months of the year in Trail and one of the drier months, so plan for around 24.3°C daytime highs and 10.4°C at night.
Not quite — August is the 12th coolest month in Trail, averaging 17.4°C.
For August in Trail, pack light layers you can adjust through the day, with typical highs of 24.3°C and lows of 10.4°C.
Relative humidity in August averages 58% — moderately humid.
Average wind speed in August is 0.3 m/s. The windiest August on record averaged 0.4 m/s (2006).
The wettest August on record was 2023 with 124 mm. On average, August sees 29 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 Trail behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
