July is one of the warmer months of the year in Yellowknife, with average highs near 20.8°C and lows around 13.4°C (mean 17.1°C). It is a relatively wet time of year, averaging 57 mm of rainfall and 65% relative humidity across the period.
July is one of the warmer months of the year in Yellowknife. Across 45 years of records, the warmest July in Yellowknife was 1994 — when the month averaged 20.6°C — while the coldest was 2025 at 14.6°C. Typical July days reach 20.8°C with nights near 13.4°C. The long-term July temperature trend is broadly flat.
July is a relatively wet time of year in Yellowknife, averaging 57 mm of rainfall. The wettest July on record was 2007 with 119 mm, while the driest was 1999 at 13 mm.
Relative humidity in Yellowknife during July averages 65%. The most humid July was 2018 at 76%, and the least humid was 1994 at 52%.
July receives about 5.4 kWh/m²/day of solar energy in Yellowknife. The sunniest July was 1994 at 6.2 kWh/m²/day, and the cloudiest were 1993 and 2015 at 4.8.
Average wind speed in Yellowknife during July is 3.7 m/s. The windiest July was 2002 at 4.3 m/s, while the calmest was 2009 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.7°C | 17.3°C | 17.2°C | 17.1°C | 17.1°C | +0.4°C |
| Avg High | 20.4°C | 21.2°C | 20.9°C | 20.8°C | 20.8°C | +0.4°C |
| Avg Low | 13.0°C | 13.5°C | 13.5°C | 13.4°C | 13.4°C | +0.4°C |
| Avg Rain | 71 mm | 38 mm | 64 mm | 59 mm | 55 mm | -16 mm |
July temperatures in Yellowknife have risen by about 0.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 4.2°C (1985) to a record high of 30.7°C (1989).
Rainfall in July is a relatively wet time of year, averaging 57 mm, with a wettest year of 119 mm.
One of the best times to visit Yellowknife
July is one of the best times to visit Yellowknife. Expect days averaging 20.8°C and nights around 13.4°C (mean 17.1°C) — warmer than Yellowknife's yearly average — with moderate rainfall (57 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 ❄️ | 18.5°C | 14.6°C | 10.8°C | 27.8°C | 5.2°C | 53 mm | 67% | 3.7 m/s | 5.1 |
| 2024 | 21.9°C | 18.0°C | 14.2°C | 28.7°C | 9.3°C | 54 mm | 66% | 4.1 m/s | 5.1 |
| 2023 | 23.2°C | 19.3°C | 15.4°C | 26.7°C | 11.9°C | 14 mm | 59% | 3.7 m/s | 5.1 |
| 2022 | 21.1°C | 17.5°C | 13.9°C | 26.3°C | 9.0°C | 46 mm | 64% | 3.6 m/s | 5.4 |
| 2021 | 20.5°C | 16.8°C | 13.1°C | 28.2°C | 5.2°C | 72 mm | 70% | 3.8 m/s | 5.3 |
| 2020 | 19.4°C | 16.2°C | 13.0°C | 22.9°C | 8.3°C | 91 mm | 74% | 4 m/s | 4.9 |
| 2019 | 18.5°C | 14.8°C | 11.0°C | 27.3°C | 4.9°C | 76 mm | 71% | 3.6 m/s | 5 |
| 2018 | 19.1°C | 15.4°C | 11.8°C | 25.4°C | 7.7°C | 86 mm | 76% | 3.7 m/s | 5.4 |
| 2017 | 21.2°C | 17.2°C | 13.3°C | 27.0°C | 7.1°C | 45 mm | 63% | 3.5 m/s | 5.4 |
| 2016 | 21.5°C | 17.8°C | 14.1°C | 28.5°C | 6.3°C | 37 mm | 62% | 3.9 m/s | 5.4 |
| 2015 | 19.2°C | 15.8°C | 12.4°C | 22.9°C | 7.2°C | 98 mm | 65% | 3.5 m/s | 4.8 |
| 2014 | 23.5°C | 19.2°C | 15.0°C | 29.0°C | 7.9°C | 31 mm | 56% | 3.8 m/s | 5.3 |
| 2013 | 19.2°C | 15.6°C | 12.0°C | 25.8°C | 5.3°C | 64 mm | 64% | 4 m/s | 5.4 |
| 2012 | 23.3°C | 19.2°C | 15.1°C | 30.5°C | 12.1°C | 30 mm | 58% | 3.6 m/s | 5.6 |
| 2011 | 21.5°C | 18.3°C | 15.1°C | 26.0°C | 10.9°C | 83 mm | 64% | 3.3 m/s | 5.1 |
| 2010 | 21.3°C | 17.8°C | 14.3°C | 27.5°C | 7.1°C | 41 mm | 65% | 3.4 m/s | 5.1 |
| 2009 | 18.6°C | 15.1°C | 11.6°C | 25.6°C | 4.2°C | 54 mm | 70% | 3.2 m/s | 5.5 |
| 2008 | 21.5°C | 17.7°C | 14.0°C | 26.1°C | 10.2°C | 50 mm | 62% | 4.2 m/s | 5.8 |
| 2007 🌧️ | 21.9°C | 18.3°C | 14.8°C | 27.9°C | 10.0°C | 119 mm | 64% | 3.9 m/s | 5.1 |
| 2006 | 19.4°C | 15.7°C | 12.0°C | 26.4°C | 8.4°C | 36 mm | 69% | 3.5 m/s | 5.4 |
| 2005 | 18.3°C | 15.0°C | 11.7°C | 26.6°C | 6.4°C | 68 mm | 70% | 3.6 m/s | 5.1 |
| 2004 | 22.8°C | 18.4°C | 14.1°C | 27.8°C | 6.3°C | 13 mm | 58% | 3.7 m/s | 5.4 |
| 2003 | 21.1°C | 17.5°C | 13.9°C | 27.3°C | 8.0°C | 38 mm | 64% | 3.7 m/s | 5.5 |
| 2002 | 20.9°C | 17.1°C | 13.4°C | 27.4°C | 5.9°C | 106 mm | 65% | 4.3 m/s | 5.3 |
| 2001 | 21.4°C | 17.9°C | 14.5°C | 25.9°C | 7.7°C | 70 mm | 67% | 3.8 m/s | 5.3 |
| 2000 | 22.6°C | 19.0°C | 15.4°C | 27.3°C | 7.0°C | 84 mm | 61% | 3.9 m/s | 5.9 |
| 1999 | 19.0°C | 14.9°C | 10.8°C | 26.8°C | 5.7°C | 13 mm | 58% | 3.8 m/s | 5.3 |
| 1998 | 23.0°C | 19.1°C | 15.1°C | 29.8°C | 6.6°C | 39 mm | 58% | 3.6 m/s | 5.7 |
| 1997 | 22.4°C | 18.7°C | 15.1°C | 29.7°C | 8.1°C | 67 mm | 65% | 4 m/s | 5.5 |
| 1996 | 23.0°C | 19.1°C | 15.1°C | 30.7°C | 9.6°C | 41 mm | 59% | 3.8 m/s | 5.5 |
| 1995 | 18.4°C | 14.9°C | 11.5°C | 23.7°C | 7.5°C | 32 mm | 59% | 3.5 m/s | 5.6 |
| 1994 🔥 | 24.8°C | 20.6°C | 16.3°C | 28.3°C | 12.5°C | 16 mm | 52% | 4 m/s | 6.2 |
| 1993 | 19.2°C | 15.7°C | 12.1°C | 25.7°C | 7.6°C | 57 mm | 66% | 3.8 m/s | 4.8 |
| 1992 | 20.2°C | 16.2°C | 12.2°C | 25.5°C | 5.7°C | 26 mm | 61% | 3.5 m/s | 6 |
| 1991 | 19.9°C | 16.3°C | 12.8°C | 29.6°C | 4.2°C | 43 mm | 71% | 4.1 m/s | 5.5 |
| 1990 | 21.6°C | 17.7°C | 13.9°C | 28.1°C | 9.1°C | 44 mm | 62% | 3.8 m/s | 5.2 |
| 1989 | 22.7°C | 18.7°C | 14.7°C | 30.7°C | 6.8°C | 42 mm | 64% | 3.7 m/s | 5.6 |
| 1988 | 19.5°C | 16.1°C | 12.7°C | 23.5°C | 7.9°C | 97 mm | 71% | 4.1 m/s | 5.1 |
| 1987 | 20.8°C | 16.7°C | 12.6°C | 27.3°C | 7.6°C | 18 mm | 59% | 3.8 m/s | 5.9 |
| 1986 | 19.4°C | 16.1°C | 12.8°C | 25.2°C | 9.0°C | 100 mm | 70% | 3.5 m/s | 5.8 |
| 1985 | 18.8°C | 14.9°C | 11.1°C | 27.6°C | 4.2°C | 73 mm | 67% | 3.8 m/s | 5.6 |
| 1984 | 20.0°C | 16.6°C | 13.1°C | 27.2°C | 9.3°C | 92 mm | 73% | 3.4 m/s | 5.1 |
| 1983 | 20.8°C | 17.3°C | 13.8°C | 28.4°C | 8.8°C | 112 mm | 68% | 3.4 m/s | — |
| 1982 | 21.0°C | 17.2°C | 13.4°C | 26.9°C | 5.6°C | 23 mm | 63% | 4 m/s | — |
| 1981 | 20.7°C | 16.9°C | 13.0°C | 25.8°C | 8.1°C | 78 mm | 65% | 4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 20.8°C with lows near 13.4°C (mean 17.1°C), based on 45 years of NASA POWER data.
July averages 57 mm of rainfall in Yellowknife, a relatively wet time of year. The wettest on record was 119 mm in 2007.
The hottest July reached 30.7°C in 1989. The coldest dipped to 4.2°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.6°C. Daytime highs moved from 20.3°C to 21°C and overnight lows from 12.9°C to 13.5°C over the same span.
July is one of the warmer months of the year in Yellowknife and a relatively wet time of year, so plan for around 20.8°C daytime highs and 13.4°C at night.
Not quite — July is the 12th coolest month in Yellowknife, averaging 17.1°C.
For July in Yellowknife, pack light layers you can adjust through the day, with typical highs of 20.8°C and lows of 13.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 65% — moderately humid.
Average wind speed in July is 3.7 m/s. The windiest July on record averaged 4.3 m/s (2002).
The wettest July on record was 2007 with 119 mm. On average, July sees 57 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 Yellowknife 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.
