June is one of the warmer months of the year in Tucson, with average highs near 37.4°C and lows around 20.3°C (mean 28.9°C). It is one of the drier months, averaging 10 mm of rainfall and 20% relative humidity across the period.
June is one of the warmer months of the year in Tucson. Across 45 years of records, the warmest June in Tucson was 2021 — when the month averaged 31°C — while the coldest were 1991 and 2009 at 26.5°C. Typical June days reach 37.4°C with nights near 20.3°C. The long-term trend is warming, about 0.4°C per decade.
June is one of the drier months in Tucson, averaging 10 mm of rainfall. The wettest June on record was 2000 with 62 mm, while the driest were 1995, 2002 and 2023 at 0 mm.
Relative humidity in Tucson during June averages 20%. The most humid June was 2000 at 33%, and the least humid was 2011 at 14%.
June receives about 8.1 kWh/m²/day of solar energy in Tucson. The sunniest Junes were 2002 and 2011 at 8.7 kWh/m²/day, and the cloudiest was 1988 at 6.8.
Average wind speed in Tucson during June is 2.8 m/s. The windiest June was 1984 at 3.3 m/s, while the calmest were 1981, 2000 and 2006 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.5°C | 28.1°C | 28.9°C | 29.6°C | 29.5°C | +1°C |
| Avg High | 37.1°C | 36.8°C | 37.3°C | 38.2°C | 38.0°C | +0.9°C |
| Avg Low | 19.9°C | 19.3°C | 20.6°C | 21.0°C | 21.1°C | +1.2°C |
| Avg Rain | 10 mm | 6 mm | 14 mm | 9 mm | 12 mm | +3 mm |
June temperatures in Tucson have risen by about 1.4°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 10.1°C (1991) to a record high of 45°C (2021).
Rainfall in June is one of the drier months, averaging 10 mm, with a wettest year of 62 mm.
A good time to visit Tucson
June is a good time to visit Tucson, with days averaging 37.4°C and nights around 20.3°C (mean 28.9°C, warmer than Tucson's yearly average) and low rainfall. October and May are marginally more temperate, but June still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 38.0°C | 29.4°C | 20.8°C | 43.5°C | 17.1°C | 20 mm | 22% | 2.6 m/s | 8.4 |
| 2024 | 38.5°C | 30.3°C | 22.1°C | 43.7°C | 17.1°C | 24 mm | 25% | 2.6 m/s | 7.6 |
| 2023 | 36.3°C | 27.6°C | 18.9°C | 42.5°C | 12.8°C | 0 mm | 17% | 3 m/s | 8.5 |
| 2022 | 37.8°C | 29.9°C | 22.0°C | 41.7°C | 17.3°C | 20 mm | 25% | 2.5 m/s | 7.4 |
| 2021 🔥 | 39.3°C | 31.0°C | 22.7°C | 45.0°C | 17.3°C | 6 mm | 20% | 2.7 m/s | 8.1 |
| 2020 | 38.0°C | 29.0°C | 20.1°C | 41.4°C | 12.7°C | 2 mm | 18% | 3.2 m/s | 8.5 |
| 2019 | 37.2°C | 28.6°C | 19.9°C | 41.9°C | 15.4°C | 1 mm | 19% | 2.8 m/s | 8.4 |
| 2018 | 37.7°C | 29.2°C | 20.6°C | 40.5°C | 15.8°C | 23 mm | 21% | 2.7 m/s | 8.3 |
| 2017 | 39.5°C | 30.8°C | 22.1°C | 44.8°C | 16.9°C | 2 mm | 16% | 2.7 m/s | 8.4 |
| 2016 | 37.9°C | 30.1°C | 22.3°C | 44.7°C | 17.1°C | 24 mm | 23% | 2.5 m/s | 7.6 |
| 2015 | 37.5°C | 29.6°C | 21.7°C | 42.0°C | 17.5°C | 25 mm | 28% | 2.5 m/s | 7.7 |
| 2014 | 38.6°C | 30.0°C | 21.5°C | 41.2°C | 19.3°C | 0 mm | 16% | 2.9 m/s | 8.5 |
| 2013 | 39.4°C | 30.3°C | 21.2°C | 42.7°C | 17.9°C | 3 mm | 15% | 2.8 m/s | 8.5 |
| 2012 | 38.6°C | 29.7°C | 20.9°C | 41.1°C | 16.6°C | 10 mm | 18% | 2.6 m/s | 8.4 |
| 2011 | 38.2°C | 29.3°C | 20.3°C | 43.5°C | 15.5°C | 2 mm | 14% | 2.8 m/s | 8.7 |
| 2010 | 37.6°C | 28.6°C | 19.5°C | 41.5°C | 13.5°C | 0 mm | 18% | 2.9 m/s | 8.6 |
| 2009 | 34.2°C | 26.5°C | 18.9°C | 38.8°C | 14.1°C | 17 mm | 26% | 2.7 m/s | 7.5 |
| 2008 | 38.2°C | 29.8°C | 21.4°C | 43.3°C | 13.7°C | 15 mm | 19% | 2.6 m/s | 8.5 |
| 2007 | 37.6°C | 29.3°C | 21.0°C | 41.3°C | 13.7°C | 5 mm | 18% | 2.5 m/s | 8.5 |
| 2006 | 38.1°C | 30.1°C | 22.1°C | 41.4°C | 18.0°C | 14 mm | 22% | 2.4 m/s | 7.9 |
| 2005 | 37.3°C | 28.4°C | 19.6°C | 42.5°C | 13.6°C | 3 mm | 21% | 2.8 m/s | 8.4 |
| 2004 | 37.5°C | 28.7°C | 20.0°C | 41.8°C | 15.6°C | 2 mm | 15% | 2.9 m/s | 8.5 |
| 2003 | 37.7°C | 28.7°C | 19.7°C | 41.0°C | 15.3°C | 1 mm | 17% | 2.9 m/s | 8.6 |
| 2002 | 39.2°C | 30.4°C | 21.5°C | 42.5°C | 15.3°C | 0 mm | 15% | 2.9 m/s | 8.7 |
| 2001 | 37.4°C | 29.0°C | 20.6°C | 41.8°C | 15.2°C | 16 mm | 22% | 2.7 m/s | 8.4 |
| 2000 🌧️ | 35.8°C | 28.4°C | 21.1°C | 40.8°C | 16.7°C | 62 mm | 33% | 2.4 m/s | 7.2 |
| 1999 | 36.2°C | 27.8°C | 19.5°C | 40.1°C | 10.7°C | 6 mm | 23% | 2.9 m/s | 8.2 |
| 1998 | 35.5°C | 26.9°C | 18.2°C | 42.4°C | 11.1°C | 3 mm | 21% | 3 m/s | 8.2 |
| 1997 | 36.2°C | 27.4°C | 18.6°C | 40.5°C | 12.9°C | 2 mm | 19% | 3.2 m/s | 8.6 |
| 1996 | 38.6°C | 30.0°C | 21.4°C | 41.2°C | 16.2°C | 6 mm | 17% | 2.9 m/s | 7.9 |
| 1995 | 35.5°C | 26.6°C | 17.8°C | 40.5°C | 11.3°C | 0 mm | 17% | 2.9 m/s | 7.8 |
| 1994 | 38.3°C | 30.0°C | 21.6°C | 44.6°C | 15.9°C | 11 mm | 22% | 2.6 m/s | 7.9 |
| 1993 | 36.9°C | 28.1°C | 19.3°C | 43.0°C | 10.3°C | 5 mm | 19% | 2.7 m/s | 8.3 |
| 1992 | 36.1°C | 27.5°C | 18.9°C | 39.8°C | 13.3°C | 3 mm | 24% | 2.8 m/s | 7.6 |
| 1991 ❄️ | 35.8°C | 26.5°C | 17.2°C | 41.1°C | 10.1°C | 6 mm | 18% | 2.8 m/s | 7.5 |
| 1990 | 38.5°C | 29.8°C | 21.0°C | 44.8°C | 13.9°C | 16 mm | 22% | 3 m/s | 8 |
| 1989 | 37.4°C | 28.7°C | 19.9°C | 42.6°C | 14.0°C | 3 mm | 17% | 2.9 m/s | 8.2 |
| 1988 | 37.4°C | 28.8°C | 20.1°C | 42.5°C | 12.4°C | 5 mm | 20% | 2.6 m/s | 6.8 |
| 1987 | 37.3°C | 28.8°C | 20.2°C | 41.3°C | 17.5°C | 4 mm | 20% | 2.5 m/s | 8.1 |
| 1986 | 37.1°C | 28.9°C | 20.8°C | 40.4°C | 16.0°C | 11 mm | 22% | 2.5 m/s | 7.9 |
| 1985 | 38.7°C | 29.6°C | 20.6°C | 42.8°C | 12.4°C | 3 mm | 16% | 2.8 m/s | 8 |
| 1984 | 34.8°C | 27.1°C | 19.5°C | 39.6°C | 14.8°C | 46 mm | 30% | 3.3 m/s | 7.3 |
| 1983 | 35.8°C | 26.7°C | 17.6°C | 39.9°C | 12.4°C | 0 mm | 20% | 3 m/s | — |
| 1982 | 36.4°C | 27.3°C | 18.2°C | 40.3°C | 15.0°C | 2 mm | 15% | 3 m/s | — |
| 1981 | 38.7°C | 30.4°C | 22.1°C | 42.5°C | 17.7°C | 11 mm | 21% | 2.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 37.4°C with lows near 20.3°C (mean 28.9°C), based on 45 years of NASA POWER data.
June averages 10 mm of rainfall in Tucson, one of the drier months. The wettest on record was 62 mm in 2000.
The hottest June reached 45°C in 2021. The coldest dipped to 10.1°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.4°C. Daytime highs moved from 36.9°C to 38°C and overnight lows from 19.6°C to 21.3°C over the same span.
June is one of the warmer months of the year in Tucson and one of the drier months, so plan for around 37.4°C daytime highs and 20.3°C at night.
Not quite — June is the 11th coolest month in Tucson, averaging 28.9°C.
For June in Tucson, pack light, breathable clothing and sun protection, with typical highs of 37.4°C and lows of 20.3°C.
Relative humidity in June averages 20% — relatively dry.
Average wind speed in June is 2.8 m/s. The windiest June on record averaged 3.3 m/s (1984).
The wettest June on record was 2000 with 62 mm. On average, June sees 10 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 Tucson 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.
