June is one of the warmer months of the year in Calgary, with average highs near 19°C and lows around 6.4°C (mean 12.7°C). It is a relatively wet time of year, averaging 103 mm of rainfall and 65% relative humidity across the period.
June is one of the warmer months of the year in Calgary. Across 45 years of records, the warmest June in Calgary was 1988 — when the month averaged 15.9°C — while the coldest was 1981 at 10°C. Typical June days reach 19°C with nights near 6.4°C. The long-term June temperature trend is broadly flat.
June is a relatively wet time of year in Calgary, averaging 103 mm of rainfall. The wettest June on record was 2005 with 307 mm, while the driest was 1985 at 36 mm.
Relative humidity in Calgary during June averages 65%. The most humid June was 2005 at 77%, and the least humid was 1987 at 51%.
June receives about 5.8 kWh/m²/day of solar energy in Calgary. The sunniest June was 2021 at 6.7 kWh/m²/day, and the cloudiest was 2005 at 4.8.
Average wind speed in Calgary during June is 1.1 m/s. The windiest June was 1993 at 1.3 m/s, while the calmest was 2025 at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.0°C | 12.5°C | 12.2°C | 12.6°C | 13.4°C | +0.4°C |
| Avg High | 19.8°C | 18.7°C | 18.4°C | 18.8°C | 19.7°C | -0.1°C |
| Avg Low | 6.3°C | 6.3°C | 6.0°C | 6.5°C | 7.2°C | +0.9°C |
| Avg Rain | 77 mm | 100 mm | 122 mm | 99 mm | 126 mm | +49 mm |
June temperatures in Calgary have risen by about 2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of -3°C (2009) to a record high of 34.9°C (2021).
Rainfall in June is a relatively wet time of year, averaging 103 mm, with a wettest year of 307 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Calgary
June is one of the best times to visit Calgary. Expect days averaging 19°C and nights around 6.4°C (mean 12.7°C) — warmer than Calgary's yearly average — with higher rainfall (103 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 | 19.7°C | 13.3°C | 6.9°C | 28.2°C | 0.6°C | 141 mm | 67% | 0.9 m/s | 6.4 |
| 2024 | 18.0°C | 11.6°C | 5.2°C | 24.3°C | 1.3°C | 113 mm | 66% | 1.2 m/s | 6.1 |
| 2023 | 21.4°C | 14.9°C | 8.4°C | 28.4°C | 3.3°C | 82 mm | 63% | 1.1 m/s | 6.1 |
| 2022 | 18.0°C | 12.4°C | 6.8°C | 23.7°C | 3.8°C | 167 mm | 72% | 1.2 m/s | 5.4 |
| 2021 | 22.6°C | 15.8°C | 9.0°C | 34.9°C | 1.9°C | 88 mm | 63% | 1.1 m/s | 6.7 |
| 2020 | 18.3°C | 12.5°C | 6.8°C | 25.9°C | 2.6°C | 163 mm | 71% | 1.1 m/s | 5.8 |
| 2019 | 18.4°C | 12.4°C | 6.5°C | 25.2°C | 1.4°C | 121 mm | 69% | 1 m/s | 5.8 |
| 2018 | 18.9°C | 12.8°C | 6.6°C | 24.5°C | 2.1°C | 102 mm | 65% | 1.2 m/s | 6.2 |
| 2017 | 19.8°C | 13.4°C | 6.9°C | 25.8°C | 3.8°C | 72 mm | 65% | 1.1 m/s | 6.4 |
| 2016 | 21.4°C | 14.5°C | 7.7°C | 29.5°C | 2.6°C | 57 mm | 58% | 1.2 m/s | 6.3 |
| 2015 | 21.3°C | 14.6°C | 8.0°C | 30.3°C | 3.1°C | 53 mm | 63% | 1 m/s | 6.1 |
| 2014 | 16.9°C | 11.3°C | 5.6°C | 21.5°C | 1.2°C | 108 mm | 71% | 1 m/s | 5.7 |
| 2013 | 18.2°C | 12.3°C | 6.3°C | 25.0°C | 0.8°C | 155 mm | 72% | 1 m/s | 5.5 |
| 2012 | 18.0°C | 12.0°C | 6.0°C | 23.0°C | 1.5°C | 154 mm | 69% | 1.2 m/s | 4.9 |
| 2011 | 17.1°C | 11.4°C | 5.8°C | 25.3°C | 1.7°C | 89 mm | 70% | 1.1 m/s | 5.5 |
| 2010 | 17.8°C | 11.5°C | 5.3°C | 26.7°C | 0.7°C | 77 mm | 65% | 1.1 m/s | 5.7 |
| 2009 | 17.5°C | 11.1°C | 4.8°C | 23.1°C | -3.0°C | 70 mm | 63% | 1.1 m/s | 6.3 |
| 2008 | 18.1°C | 11.8°C | 5.5°C | 29.8°C | 0.6°C | 111 mm | 67% | 1 m/s | 5.7 |
| 2007 | 18.9°C | 12.7°C | 6.6°C | 26.4°C | 2.6°C | 153 mm | 69% | 1 m/s | 5.9 |
| 2006 | 19.7°C | 13.8°C | 8.0°C | 28.8°C | 4.0°C | 115 mm | 69% | 1.1 m/s | 6.2 |
| 2005 🌧️ | 15.8°C | 10.7°C | 5.7°C | 26.2°C | 2.5°C | 307 mm | 77% | 1.1 m/s | 4.8 |
| 2004 | 18.3°C | 12.1°C | 5.9°C | 24.4°C | 1.7°C | 118 mm | 68% | 1.1 m/s | 6.1 |
| 2003 | 19.1°C | 12.7°C | 6.2°C | 29.0°C | 2.5°C | 88 mm | 66% | 1.1 m/s | 6 |
| 2002 | 19.8°C | 13.3°C | 6.9°C | 31.4°C | 0.9°C | 86 mm | 62% | 1.1 m/s | 6 |
| 2001 | 18.0°C | 11.7°C | 5.4°C | 25.9°C | 1.6°C | 95 mm | 62% | 1 m/s | 5.4 |
| 2000 | 18.7°C | 12.0°C | 5.4°C | 25.1°C | 0.8°C | 79 mm | 62% | 1 m/s | 6 |
| 1999 | 17.6°C | 11.4°C | 5.2°C | 26.4°C | 0.4°C | 85 mm | 64% | 1 m/s | 5.7 |
| 1998 | 16.7°C | 11.4°C | 6.1°C | 22.6°C | -1.6°C | 160 mm | 72% | 1.1 m/s | 5.5 |
| 1997 | 18.9°C | 13.0°C | 7.1°C | 24.3°C | 4.1°C | 72 mm | 64% | 1.1 m/s | 6.1 |
| 1996 | 19.2°C | 12.5°C | 5.7°C | 27.2°C | 2.1°C | 58 mm | 60% | 1.1 m/s | 5.9 |
| 1995 | 19.7°C | 13.2°C | 6.7°C | 25.7°C | -0.2°C | 79 mm | 63% | 1.1 m/s | 5.5 |
| 1994 | 20.0°C | 13.1°C | 6.3°C | 29.0°C | 1.2°C | 73 mm | 61% | 1.1 m/s | 5.6 |
| 1993 | 17.9°C | 11.8°C | 5.7°C | 25.4°C | -0.5°C | 111 mm | 65% | 1.3 m/s | 5.2 |
| 1992 | 19.9°C | 14.0°C | 8.1°C | 28.4°C | 3.2°C | 161 mm | 69% | 1.1 m/s | 5.3 |
| 1991 | 17.1°C | 11.3°C | 5.4°C | 24.2°C | 1.3°C | 129 mm | 68% | 1 m/s | 5.5 |
| 1990 | 19.5°C | 12.8°C | 6.2°C | 27.7°C | 1.5°C | 70 mm | 63% | 1.2 m/s | 5.7 |
| 1989 | 20.5°C | 13.7°C | 7.0°C | 27.4°C | 3.5°C | 67 mm | 61% | 1.1 m/s | 6.2 |
| 1988 🔥 | 23.5°C | 15.9°C | 8.2°C | 32.1°C | 3.0°C | 84 mm | 55% | 1.1 m/s | 5.3 |
| 1987 | 23.1°C | 15.8°C | 8.4°C | 31.5°C | 2.5°C | 40 mm | 51% | 1.2 m/s | 6.2 |
| 1986 | 21.1°C | 14.0°C | 6.9°C | 30.8°C | 2.0°C | 80 mm | 60% | 1.1 m/s | 6 |
| 1985 | 19.4°C | 11.7°C | 4.0°C | 28.1°C | -0.3°C | 36 mm | 56% | 1.2 m/s | 6.2 |
| 1984 | 18.6°C | 11.9°C | 5.2°C | 27.9°C | -0.7°C | 86 mm | 64% | 1 m/s | 5.8 |
| 1983 | 17.5°C | 11.8°C | 6.2°C | 23.0°C | 1.8°C | 96 mm | 69% | 1.1 m/s | — |
| 1982 | 18.3°C | 12.6°C | 6.8°C | 26.6°C | -0.9°C | 116 mm | 72% | 1 m/s | — |
| 1981 ❄️ | 16.2°C | 10.0°C | 3.9°C | 24.1°C | 1.0°C | 89 mm | 66% | 1.1 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 19°C with lows near 6.4°C (mean 12.7°C), based on 45 years of NASA POWER data.
June averages 103 mm of rainfall in Calgary, a relatively wet time of year. The wettest on record was 307 mm in 2005.
The hottest June reached 34.9°C in 2021. The coldest dipped to -3°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2°C. Daytime highs moved from 18°C to 19.9°C and overnight lows from 5.2°C to 7.3°C over the same span.
June is one of the warmer months of the year in Calgary and a relatively wet time of year, so plan for around 19°C daytime highs and 6.4°C at night.
Not quite — June is the 10th coolest month in Calgary, averaging 12.7°C.
For June in Calgary, pack warm layers and a jacket for chilly mornings, with typical highs of 19°C and lows of 6.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 65% — moderately humid.
Average wind speed in June is 1.1 m/s. The windiest June on record averaged 1.3 m/s (1993).
The wettest June on record was 2005 with 307 mm. On average, June sees 103 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 Calgary behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
