June is one of the warmer months of the year in Granby, with average highs near 21.8°C and lows around 11.6°C (mean 16.7°C). It is a relatively wet time of year, averaging 106 mm of rainfall and 81% relative humidity across the period.
June is one of the warmer months of the year in Granby. Across 45 years of records, the warmest June in Granby was 2005 — when the month averaged 19°C — while the coldest were 1985 and 1986 at 14.1°C. Typical June days reach 21.8°C with nights near 11.6°C. The long-term trend is warming, about 0.4°C per decade.
June is a relatively wet time of year in Granby, averaging 106 mm of rainfall. The wettest June on record was 2010 with 173 mm, while the driest was 1983 at 37 mm.
Relative humidity in Granby during June averages 81%. The most humid June was 2006 at 84%, and the least humid was 1988 at 77%.
June receives about 5.7 kWh/m²/day of solar energy in Granby. The sunniest June was 1997 at 6.7 kWh/m²/day, and the cloudiest was 1990 at 4.7.
Average wind speed in Granby during June is 0.3 m/s. The windiest Junes were 1985 and 1986 at 0.4 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.7°C | 17.0°C | 16.9°C | 16.6°C | 17.8°C | +2.1°C |
| Avg High | 20.9°C | 22.1°C | 21.9°C | 21.6°C | 23.0°C | +2.1°C |
| Avg Low | 10.5°C | 11.9°C | 11.8°C | 11.6°C | 12.6°C | +2.1°C |
| Avg Rain | 96 mm | 101 mm | 124 mm | 112 mm | 92 mm | -4 mm |
June temperatures in Granby have risen by about 2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 0.1°C (1986) to a record high of 33.9°C (2023).
Rainfall in June is a relatively wet time of year, averaging 106 mm, with a wettest year of 173 mm.
One of the best times to visit Granby
June is one of the best times to visit Granby. Expect days averaging 21.8°C and nights around 11.6°C (mean 16.7°C) — warmer than Granby's yearly average — with higher rainfall (106 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 | 23.2°C | 18.0°C | 12.7°C | 31.6°C | 5.8°C | 103 mm | 78% | 0.3 m/s | 5.9 |
| 2024 | 23.7°C | 18.6°C | 13.6°C | 29.7°C | 7.8°C | 118 mm | 80% | 0.3 m/s | 5.6 |
| 2023 | 22.2°C | 17.0°C | 11.7°C | 33.9°C | 4.3°C | 101 mm | 82% | 0.3 m/s | 5.4 |
| 2022 | 21.8°C | 16.7°C | 11.6°C | 29.1°C | 6.8°C | 99 mm | 79% | 0.3 m/s | 5.7 |
| 2021 | 23.9°C | 18.9°C | 13.9°C | 30.3°C | 6.8°C | 71 mm | 77% | 0.3 m/s | 6 |
| 2020 | 23.0°C | 17.6°C | 12.2°C | 32.2°C | 3.1°C | 58 mm | 79% | 0.3 m/s | 6.1 |
| 2019 | 21.5°C | 16.1°C | 10.7°C | 26.9°C | 4.3°C | 95 mm | 80% | 0.3 m/s | 5.9 |
| 2018 | 21.4°C | 16.2°C | 11.0°C | 26.9°C | 4.9°C | 81 mm | 79% | 0.3 m/s | 6.3 |
| 2017 | 21.3°C | 16.7°C | 12.0°C | 28.6°C | 5.7°C | 116 mm | 83% | 0.3 m/s | 5.5 |
| 2016 | 21.5°C | 16.7°C | 12.0°C | 28.3°C | 5.7°C | 85 mm | 79% | 0.3 m/s | 6 |
| 2015 | 20.6°C | 15.5°C | 10.3°C | 26.0°C | 4.1°C | 151 mm | 80% | 0.3 m/s | 5.7 |
| 2014 | 22.5°C | 17.4°C | 12.3°C | 27.3°C | 7.8°C | 132 mm | 80% | 0.3 m/s | 6 |
| 2013 | 21.3°C | 16.7°C | 12.1°C | 28.3°C | 5.6°C | 116 mm | 82% | 0.3 m/s | 5.1 |
| 2012 | 22.3°C | 17.2°C | 12.1°C | 30.0°C | 6.0°C | 77 mm | 80% | 0.3 m/s | 6.2 |
| 2011 | 21.8°C | 16.7°C | 11.6°C | 27.6°C | 5.0°C | 94 mm | 81% | 0.3 m/s | 5.6 |
| 2010 🌧️ | 21.4°C | 16.7°C | 12.1°C | 27.1°C | 7.0°C | 173 mm | 83% | 0.3 m/s | 5.1 |
| 2009 | 21.0°C | 16.0°C | 11.1°C | 27.4°C | 1.8°C | 123 mm | 83% | 0.3 m/s | 5.5 |
| 2008 | 22.6°C | 18.1°C | 13.5°C | 31.5°C | 8.6°C | 161 mm | 84% | 0.3 m/s | 5.2 |
| 2007 | 22.4°C | 17.0°C | 11.6°C | 29.2°C | 3.9°C | 94 mm | 81% | 0.3 m/s | 6.1 |
| 2006 | 21.8°C | 17.4°C | 13.1°C | 28.3°C | 8.4°C | 161 mm | 84% | 0.3 m/s | 5 |
| 2005 🔥 | 24.1°C | 19.0°C | 13.9°C | 29.8°C | 7.6°C | 116 mm | 83% | 0.3 m/s | 5.8 |
| 2004 | 20.3°C | 15.0°C | 9.7°C | 27.2°C | 4.9°C | 93 mm | 79% | 0.3 m/s | 6.3 |
| 2003 | 22.2°C | 16.8°C | 11.4°C | 30.9°C | 3.9°C | 92 mm | 80% | 0.3 m/s | 6.1 |
| 2002 | 21.2°C | 16.0°C | 10.8°C | 27.1°C | 2.8°C | 162 mm | 80% | 0.3 m/s | 5.4 |
| 2001 | 23.1°C | 18.0°C | 12.9°C | 30.0°C | 4.6°C | 122 mm | 81% | 0.3 m/s | 6 |
| 2000 | 20.2°C | 15.2°C | 10.3°C | 27.3°C | 3.0°C | 117 mm | 82% | 0.3 m/s | 5.1 |
| 1999 | 23.8°C | 18.7°C | 13.6°C | 28.7°C | 5.5°C | 110 mm | 79% | 0.3 m/s | 5.8 |
| 1998 | 21.5°C | 16.9°C | 12.4°C | 29.9°C | 4.4°C | 122 mm | 83% | 0.3 m/s | 5 |
| 1997 | 23.0°C | 17.6°C | 12.3°C | 28.7°C | 6.5°C | 60 mm | 79% | 0.3 m/s | 6.7 |
| 1996 | 21.8°C | 16.8°C | 11.8°C | 27.8°C | 7.4°C | 106 mm | 84% | 0.3 m/s | 5 |
| 1995 | 23.3°C | 17.6°C | 12.0°C | 30.0°C | 6.4°C | 45 mm | 77% | 0.3 m/s | 6.6 |
| 1994 | 23.0°C | 17.8°C | 12.6°C | 31.1°C | 3.7°C | 154 mm | 82% | 0.3 m/s | 5.7 |
| 1993 | 20.7°C | 15.7°C | 10.6°C | 26.2°C | 4.4°C | 137 mm | 82% | 0.3 m/s | 5.4 |
| 1992 | 20.3°C | 15.5°C | 10.8°C | 25.8°C | 6.5°C | 77 mm | 82% | 0.3 m/s | 5.9 |
| 1991 | 21.9°C | 16.6°C | 11.3°C | 28.4°C | 5.3°C | 74 mm | 79% | 0.3 m/s | 6.3 |
| 1990 | 21.5°C | 16.6°C | 11.6°C | 27.0°C | 2.8°C | 127 mm | 84% | 0.3 m/s | 4.7 |
| 1989 | 22.1°C | 16.9°C | 11.7°C | 28.9°C | 6.5°C | 94 mm | 82% | 0.3 m/s | 5.5 |
| 1988 | 20.2°C | 14.7°C | 9.2°C | 29.1°C | 3.1°C | 89 mm | 77% | 0.3 m/s | 6.2 |
| 1987 | 22.0°C | 16.9°C | 11.8°C | 26.5°C | 5.3°C | 118 mm | 80% | 0.3 m/s | 5.6 |
| 1986 | 19.7°C | 14.1°C | 8.5°C | 25.7°C | 0.1°C | 119 mm | 78% | 0.4 m/s | 5.9 |
| 1985 ❄️ | 18.7°C | 14.1°C | 9.4°C | 23.8°C | 4.7°C | 100 mm | 81% | 0.4 m/s | 5 |
| 1984 | 21.9°C | 16.6°C | 11.2°C | 27.7°C | 4.4°C | 68 mm | 80% | 0.3 m/s | 5.7 |
| 1983 | 21.8°C | 16.7°C | 11.7°C | 29.6°C | 1.7°C | 37 mm | 81% | 0.3 m/s | — |
| 1982 | 20.0°C | 14.9°C | 9.8°C | 29.3°C | 4.3°C | 131 mm | 80% | 0.3 m/s | — |
| 1981 | 21.9°C | 16.7°C | 11.5°C | 28.3°C | 4.6°C | 110 mm | 80% | 0.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 21.8°C with lows near 11.6°C (mean 16.7°C), based on 45 years of NASA POWER data.
June averages 106 mm of rainfall in Granby, a relatively wet time of year. The wettest on record was 173 mm in 2010.
The hottest June reached 33.9°C in 2023. The coldest dipped to 0.1°C in 1986.
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 20.9°C to 23°C and overnight lows from 10.7°C to 12.7°C over the same span.
June is one of the warmer months of the year in Granby and a relatively wet time of year, so plan for around 21.8°C daytime highs and 11.6°C at night.
Not quite — June is the 10th coolest month in Granby, averaging 16.7°C.
For June in Granby, pack light layers you can adjust through the day, with typical highs of 21.8°C and lows of 11.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 81% — quite humid.
Average wind speed in June is 0.3 m/s. The windiest June on record averaged 0.4 m/s (1985).
The wettest June on record was 2010 with 173 mm. On average, June sees 106 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 Granby 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.
