July is one of the warmer months of the year in Chilliwack, with average highs near 20.5°C and lows around 10.5°C (mean 15.5°C). It is one of the drier months, averaging 53 mm of rainfall and 78% relative humidity across the period.
July is one of the warmer months of the year in Chilliwack. Across 45 years of records, the warmest July in Chilliwack was 2009 — when the month averaged 17.9°C — while the coldest was 1993 at 12.3°C. Typical July days reach 20.5°C with nights near 10.5°C. The long-term trend is warming, about 0.5°C per decade.
July is one of the drier months in Chilliwack, averaging 53 mm of rainfall. The wettest July on record was 1983 with 183 mm, while the driest was 1985 at 6 mm.
Relative humidity in Chilliwack during July averages 78%. The most humid July was 1993 at 86%, and the least humid was 1985 at 70%.
July receives about 6.4 kWh/m²/day of solar energy in Chilliwack. The sunniest Julys were 2013 and 2017 at 7.5 kWh/m²/day, and the cloudiest was 1993 at 4.7.
Average wind speed in Chilliwack during July is 0.2 m/s. The windiest Julys were 2009, 2014 and 2018, among others at 0.3 m/s, while the calmest was 2025 at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.5°C | 15.3°C | 15.8°C | 15.8°C | 16.3°C | +1.8°C |
| Avg High | 19.4°C | 20.1°C | 20.8°C | 20.8°C | 21.4°C | +2°C |
| Avg Low | 9.5°C | 10.5°C | 10.7°C | 10.8°C | 11.2°C | +1.7°C |
| Avg Rain | 75 mm | 64 mm | 43 mm | 41 mm | 38 mm | -37 mm |
July temperatures in Chilliwack have risen by about 1.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 3.8°C (1988) to a record high of 35.5°C (2006).
Rainfall in July is one of the drier months, averaging 53 mm, with a wettest year of 183 mm.
One of the best times to visit Chilliwack
July is one of the best times to visit Chilliwack. Expect days averaging 20.5°C and nights around 10.5°C (mean 15.5°C) — warmer than Chilliwack's yearly average — with moderate rainfall (53 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 | 19.3°C | 14.7°C | 10.1°C | 25.3°C | 6.4°C | 51 mm | 84% | 0.1 m/s | 6.6 |
| 2024 | 22.8°C | 17.4°C | 12.0°C | 31.9°C | 7.7°C | 38 mm | 77% | 0.2 m/s | 7.1 |
| 2023 | 21.8°C | 16.5°C | 11.1°C | 27.0°C | 8.6°C | 23 mm | 77% | 0.2 m/s | 6.8 |
| 2022 | 22.4°C | 17.3°C | 12.1°C | 31.4°C | 8.0°C | 47 mm | 77% | 0.2 m/s | 6.8 |
| 2021 | 22.6°C | 17.2°C | 11.9°C | 31.3°C | 8.1°C | 9 mm | 78% | 0.2 m/s | 7.2 |
| 2020 | 19.4°C | 14.7°C | 10.0°C | 33.2°C | 6.9°C | 61 mm | 81% | 0.2 m/s | 6.2 |
| 2019 | 19.1°C | 14.8°C | 10.5°C | 27.3°C | 6.4°C | 61 mm | 82% | 0.2 m/s | 5.6 |
| 2018 | 23.2°C | 17.6°C | 11.9°C | 31.0°C | 6.7°C | 27 mm | 72% | 0.3 m/s | 6.8 |
| 2017 | 21.0°C | 15.6°C | 10.3°C | 26.6°C | 7.8°C | 10 mm | 77% | 0.2 m/s | 7.5 |
| 2016 | 18.7°C | 14.7°C | 10.6°C | 26.4°C | 8.0°C | 59 mm | 84% | 0.2 m/s | 5.5 |
| 2015 | 22.5°C | 17.4°C | 12.2°C | 30.5°C | 8.6°C | 36 mm | 72% | 0.2 m/s | 6.5 |
| 2014 | 22.4°C | 17.0°C | 11.5°C | 33.4°C | 7.8°C | 57 mm | 76% | 0.3 m/s | 6.7 |
| 2013 | 22.1°C | 16.5°C | 10.8°C | 31.2°C | 7.3°C | 7 mm | 77% | 0.2 m/s | 7.5 |
| 2012 | 20.7°C | 15.8°C | 10.9°C | 27.6°C | 4.8°C | 74 mm | 81% | 0.2 m/s | 6.1 |
| 2011 | 17.6°C | 13.2°C | 8.8°C | 25.5°C | 5.4°C | 61 mm | 81% | 0.2 m/s | 5.5 |
| 2010 | 20.4°C | 15.2°C | 10.0°C | 30.4°C | 6.3°C | 19 mm | 77% | 0.2 m/s | 6.7 |
| 2009 🔥 | 23.8°C | 17.9°C | 12.0°C | 34.4°C | 6.3°C | 29 mm | 72% | 0.3 m/s | 6.6 |
| 2008 | 19.3°C | 14.6°C | 9.8°C | 30.3°C | 5.9°C | 38 mm | 79% | 0.2 m/s | 6.4 |
| 2007 | 21.6°C | 16.5°C | 11.4°C | 32.8°C | 7.6°C | 74 mm | 79% | 0.2 m/s | 6.4 |
| 2006 | 21.4°C | 16.5°C | 11.5°C | 35.5°C | 7.4°C | 30 mm | 76% | 0.2 m/s | 6.6 |
| 2005 | 20.1°C | 15.0°C | 10.0°C | 29.9°C | 7.2°C | 61 mm | 78% | 0.2 m/s | 6.2 |
| 2004 | 22.4°C | 17.0°C | 11.6°C | 33.4°C | 7.2°C | 29 mm | 76% | 0.3 m/s | 6.4 |
| 2003 | 21.5°C | 16.3°C | 11.0°C | 29.5°C | 6.3°C | 22 mm | 74% | 0.3 m/s | 7.2 |
| 2002 | 20.9°C | 15.7°C | 10.4°C | 32.3°C | 5.2°C | 38 mm | 76% | 0.2 m/s | 6.5 |
| 2001 | 18.5°C | 13.8°C | 9.1°C | 27.3°C | 6.1°C | 40 mm | 80% | 0.2 m/s | 6.2 |
| 2000 | 18.7°C | 14.3°C | 9.8°C | 26.5°C | 5.9°C | 68 mm | 82% | 0.2 m/s | 6.1 |
| 1999 | 18.8°C | 13.9°C | 9.1°C | 25.8°C | 4.6°C | 70 mm | 80% | 0.2 m/s | 6.1 |
| 1998 | 22.0°C | 17.5°C | 12.9°C | 31.5°C | 8.6°C | 59 mm | 79% | 0.2 m/s | 6.6 |
| 1997 | 19.4°C | 14.8°C | 10.1°C | 29.3°C | 7.3°C | 94 mm | 82% | 0.2 m/s | 6 |
| 1996 | 21.8°C | 16.3°C | 10.8°C | 30.1°C | 5.6°C | 45 mm | 74% | 0.3 m/s | 6.7 |
| 1995 | 20.0°C | 15.2°C | 10.5°C | 31.1°C | 6.1°C | 86 mm | 79% | 0.2 m/s | 5.7 |
| 1994 | 21.5°C | 16.0°C | 10.6°C | 32.3°C | 6.4°C | 34 mm | 75% | 0.3 m/s | 6.6 |
| 1993 ❄️ | 15.9°C | 12.3°C | 8.7°C | 20.7°C | 5.8°C | 102 mm | 86% | 0.2 m/s | 4.7 |
| 1992 | 20.2°C | 15.7°C | 11.2°C | 29.3°C | 7.3°C | 81 mm | 80% | 0.2 m/s | 5.4 |
| 1991 | 19.5°C | 14.5°C | 9.5°C | 31.8°C | 6.0°C | 38 mm | 79% | 0.2 m/s | 6.2 |
| 1990 | 22.2°C | 16.8°C | 11.4°C | 30.4°C | 5.8°C | 36 mm | 76% | 0.3 m/s | 6.3 |
| 1989 | 19.3°C | 14.3°C | 9.3°C | 27.0°C | 6.1°C | 38 mm | 79% | 0.2 m/s | 6.4 |
| 1988 | 19.5°C | 14.2°C | 8.8°C | 31.1°C | 3.8°C | 73 mm | 77% | 0.3 m/s | 6.1 |
| 1987 | 19.1°C | 14.4°C | 9.8°C | 27.2°C | 6.5°C | 66 mm | 81% | 0.2 m/s | 5.8 |
| 1986 | 16.7°C | 12.6°C | 8.4°C | 23.2°C | 5.0°C | 99 mm | 84% | 0.2 m/s | 5.1 |
| 1985 | 23.4°C | 17.6°C | 11.7°C | 30.5°C | 6.6°C | 6 mm | 70% | 0.3 m/s | 7.3 |
| 1984 | 20.4°C | 14.9°C | 9.4°C | 30.7°C | 6.3°C | 21 mm | 77% | 0.2 m/s | 6.8 |
| 1983 🌧️ | 18.3°C | 13.5°C | 8.7°C | 32.0°C | 5.8°C | 183 mm | 80% | 0.2 m/s | — |
| 1982 | 19.0°C | 14.4°C | 9.8°C | 30.2°C | 5.7°C | 104 mm | 81% | 0.2 m/s | — |
| 1981 | 19.1°C | 14.4°C | 9.8°C | 27.5°C | 4.9°C | 85 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 20.5°C with lows near 10.5°C (mean 15.5°C), based on 45 years of NASA POWER data.
July averages 53 mm of rainfall in Chilliwack, one of the drier months. The wettest on record was 183 mm in 1983.
The hottest July reached 35.5°C in 2006. The coldest dipped to 3.8°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.6°C. Daytime highs moved from 20°C to 21.8°C and overnight lows from 9.9°C to 11.4°C over the same span.
July is one of the warmer months of the year in Chilliwack and one of the drier months, so plan for around 20.5°C daytime highs and 10.5°C at night.
Not quite — July is the 11th coolest month in Chilliwack, averaging 15.5°C.
For July in Chilliwack, pack light layers you can adjust through the day, with typical highs of 20.5°C and lows of 10.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 78% — quite humid.
Average wind speed in July is 0.2 m/s. The windiest July on record averaged 0.3 m/s (1985).
The wettest July on record was 1983 with 183 mm. On average, July sees 53 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 Chilliwack 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.
