June is one of the warmer months of the year in Modesto, with average highs near 32.3°C and lows around 12.3°C (mean 22.3°C). It is one of the drier months, averaging 4 mm of rainfall and 48% relative humidity across the period.
June is one of the warmer months of the year in Modesto. Across 45 years of records, the warmest June in Modesto was 1981 — when the month averaged 24.9°C — while the coldest was 1998 at 18.4°C. Typical June days reach 32.3°C with nights near 12.3°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Modesto, averaging 4 mm of rainfall. The wettest June on record was 2011 with 35 mm, while the driest were 2021, 2024 and 2025, among others at 0 mm.
Relative humidity in Modesto during June averages 48%. The most humid June was 1998 at 68%, and the least humid was 1981 at 36%.
June receives about 8.2 kWh/m²/day of solar energy in Modesto. The sunniest Junes were 2012 and 2018 at 8.7 kWh/m²/day, and the cloudiest was 1992 at 7.2.
Average wind speed in Modesto during June is 3.2 m/s. The windiest June was 1981 at 3.6 m/s, while the calmest was 1998 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.4°C | 21.0°C | 22.5°C | 22.6°C | 23.3°C | +0.9°C |
| Avg High | 32.4°C | 30.6°C | 32.7°C | 32.6°C | 33.7°C | +1.3°C |
| Avg Low | 12.4°C | 11.5°C | 12.3°C | 12.6°C | 13.1°C | +0.7°C |
| Avg Rain | 3 mm | 6 mm | 2 mm | 5 mm | 0 mm | -2 mm |
June temperatures in Modesto have risen by about 1.1°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 6.2°C (1999) to a record high of 44.9°C (2021).
Rainfall in June is one of the drier months, averaging 4 mm, with a wettest year of 35 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
One of the best times to visit Modesto
June is one of the best times to visit Modesto. Expect days averaging 32.3°C and nights around 12.3°C (mean 22.3°C) — warmer than Modesto's yearly average — with low rainfall (4 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 | 34.1°C | 23.2°C | 12.3°C | 40.0°C | 9.4°C | 0 mm | 42% | 3.3 m/s | 8.5 |
| 2024 | 34.8°C | 24.2°C | 13.6°C | 42.6°C | 10.5°C | 0 mm | 42% | 3.4 m/s | 8.4 |
| 2023 | 29.6°C | 20.3°C | 11.1°C | 41.5°C | 7.8°C | 1 mm | 57% | 2.9 m/s | 7.7 |
| 2022 | 34.4°C | 24.2°C | 14.0°C | 41.3°C | 9.9°C | 1 mm | 39% | 3.3 m/s | 8.1 |
| 2021 | 35.4°C | 24.6°C | 13.8°C | 44.9°C | 8.4°C | 0 mm | 43% | 3.4 m/s | 8.6 |
| 2020 | 33.7°C | 23.6°C | 13.6°C | 41.0°C | 9.1°C | 0 mm | 43% | 3.3 m/s | 8.4 |
| 2019 | 33.0°C | 23.2°C | 13.4°C | 40.1°C | 8.5°C | 2 mm | 47% | 2.9 m/s | 8.3 |
| 2018 | 33.5°C | 22.9°C | 12.3°C | 39.7°C | 7.7°C | 0 mm | 45% | 3.3 m/s | 8.7 |
| 2017 | 33.0°C | 23.1°C | 13.2°C | 42.7°C | 8.4°C | 2 mm | 50% | 3.2 m/s | 8.2 |
| 2016 | 34.0°C | 23.6°C | 13.2°C | 41.9°C | 9.0°C | 0 mm | 42% | 3.1 m/s | 8.4 |
| 2015 | 35.0°C | 24.6°C | 14.2°C | 42.6°C | 10.3°C | 2 mm | 44% | 3.1 m/s | 8.2 |
| 2014 | 34.2°C | 23.4°C | 12.7°C | 42.3°C | 9.1°C | 1 mm | 42% | 3.2 m/s | 8.6 |
| 2013 | 33.7°C | 23.5°C | 13.4°C | 42.7°C | 9.2°C | 2 mm | 46% | 3.3 m/s | 8.1 |
| 2012 | 31.5°C | 21.4°C | 11.2°C | 42.1°C | 7.8°C | 4 mm | 47% | 3.5 m/s | 8.7 |
| 2011 🌧️ | 28.4°C | 19.6°C | 10.7°C | 40.2°C | 6.3°C | 35 mm | 60% | 3 m/s | 7.9 |
| 2010 | 29.9°C | 20.9°C | 11.8°C | 40.4°C | 9.0°C | 0 mm | 55% | 3.4 m/s | 8.5 |
| 2009 | 30.6°C | 21.5°C | 12.4°C | 43.4°C | 9.7°C | 3 mm | 52% | 2.9 m/s | 7.8 |
| 2008 | 34.2°C | 23.2°C | 12.3°C | 42.9°C | 7.6°C | 0 mm | 38% | 3.2 m/s | 8.6 |
| 2007 | 32.8°C | 22.2°C | 11.7°C | 40.2°C | 7.2°C | 0 mm | 46% | 3.2 m/s | 8.5 |
| 2006 | 33.2°C | 23.2°C | 13.3°C | 40.7°C | 9.2°C | 0 mm | 53% | 3.1 m/s | 8.2 |
| 2005 | 29.4°C | 20.1°C | 10.9°C | 38.7°C | 7.9°C | 9 mm | 57% | 3.1 m/s | 8.3 |
| 2004 | 33.0°C | 22.5°C | 11.9°C | 39.6°C | 9.2°C | 1 mm | 50% | 3.5 m/s | 8.6 |
| 2003 | 32.4°C | 22.4°C | 12.4°C | 41.6°C | 9.5°C | 0 mm | 51% | 3.2 m/s | 8.6 |
| 2002 | 32.5°C | 22.1°C | 11.6°C | 39.2°C | 8.7°C | 0 mm | 49% | 3.5 m/s | 8.6 |
| 2001 | 34.2°C | 23.6°C | 13.1°C | 42.5°C | 8.7°C | 1 mm | 40% | 3.3 m/s | 8.6 |
| 2000 | 34.4°C | 23.8°C | 13.2°C | 43.7°C | 8.5°C | 7 mm | 47% | 3.1 m/s | 8.5 |
| 1999 | 31.1°C | 20.9°C | 10.7°C | 42.0°C | 6.2°C | 8 mm | 51% | 3.2 m/s | 8.4 |
| 1998 ❄️ | 26.2°C | 18.4°C | 10.7°C | 33.2°C | 8.6°C | 6 mm | 68% | 2.7 m/s | 7.9 |
| 1997 | 31.9°C | 22.0°C | 12.2°C | 38.5°C | 9.5°C | 5 mm | 50% | 3.5 m/s | 8.2 |
| 1996 | 32.0°C | 21.8°C | 11.6°C | 41.3°C | 8.5°C | 2 mm | 51% | 2.9 m/s | 8.3 |
| 1995 | 28.0°C | 19.5°C | 11.0°C | 40.9°C | 7.5°C | 18 mm | 59% | 2.9 m/s | 7.9 |
| 1994 | 33.0°C | 22.3°C | 11.6°C | 41.2°C | 8.2°C | 1 mm | 44% | 3.1 m/s | 8.3 |
| 1993 | 30.5°C | 21.3°C | 12.1°C | 41.1°C | 7.9°C | 13 mm | 53% | 3.1 m/s | 7.8 |
| 1992 | 32.0°C | 22.5°C | 13.1°C | 39.7°C | 8.4°C | 6 mm | 50% | 3 m/s | 7.2 |
| 1991 | 30.2°C | 20.4°C | 10.6°C | 38.2°C | 7.0°C | 4 mm | 50% | 3 m/s | 8 |
| 1990 | 31.1°C | 21.2°C | 11.3°C | 40.1°C | 7.6°C | 0 mm | 53% | 3.2 m/s | 8.3 |
| 1989 | 32.3°C | 22.2°C | 12.1°C | 40.2°C | 9.6°C | 2 mm | 47% | 3.2 m/s | 8 |
| 1988 | 32.3°C | 22.3°C | 12.3°C | 41.0°C | 6.5°C | 8 mm | 47% | 3 m/s | 7.5 |
| 1987 | 34.5°C | 23.5°C | 12.6°C | 41.2°C | 8.6°C | 0 mm | 38% | 2.9 m/s | 7.8 |
| 1986 | 32.6°C | 22.5°C | 12.3°C | 39.6°C | 9.0°C | 0 mm | 45% | 2.9 m/s | 8.2 |
| 1985 | 35.4°C | 24.7°C | 14.0°C | 41.9°C | 6.5°C | 5 mm | 39% | 3 m/s | 8.2 |
| 1984 | 32.0°C | 21.9°C | 11.8°C | 38.8°C | 8.8°C | 3 mm | 44% | 3.4 m/s | 8 |
| 1983 | 28.7°C | 19.8°C | 11.0°C | 34.0°C | 8.8°C | 0 mm | 60% | 3.1 m/s | — |
| 1982 | 28.6°C | 19.7°C | 10.8°C | 35.7°C | 7.0°C | 7 mm | 56% | 3.1 m/s | — |
| 1981 🔥 | 35.3°C | 24.9°C | 14.4°C | 41.5°C | 9.2°C | 0 mm | 36% | 3.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 32.3°C with lows near 12.3°C (mean 22.3°C), based on 45 years of NASA POWER data.
June averages 4 mm of rainfall in Modesto, one of the drier months. The wettest on record was 35 mm in 2011.
The hottest June reached 44.9°C in 2021. The coldest dipped to 6.2°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.1°C. Daytime highs moved from 32°C to 33.7°C and overnight lows from 12.4°C to 13°C over the same span.
June is one of the warmer months of the year in Modesto and one of the drier months, so plan for around 32.3°C daytime highs and 12.3°C at night.
Not quite — June is the 9th coolest month in Modesto, averaging 22.3°C.
For June in Modesto, pack light, breathable clothing and sun protection, with typical highs of 32.3°C and lows of 12.3°C.
Relative humidity in June averages 48% — relatively dry.
Average wind speed in June is 3.2 m/s. The windiest June on record averaged 3.6 m/s (1981).
The wettest June on record was 2011 with 35 mm. On average, June sees 4 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 Modesto 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.
