July is one of the warmer months of the year in Rochester, with average highs near 27.7°C and lows around 16.4°C (mean 22°C). It is a relatively wet time of year, averaging 92 mm of rainfall and 69% relative humidity across the period.
July is one of the warmer months of the year in Rochester. Across 45 years of records, the warmest July in Rochester was 2020 — when the month averaged 24.9°C — while the coldest was 1992 at 18.9°C. Typical July days reach 27.7°C with nights near 16.4°C. The long-term trend is warming, about 0.4°C per decade.
July is a relatively wet time of year in Rochester, averaging 92 mm of rainfall. The wettest July on record was 1992 with 223 mm, while the driest was 2001 at 34 mm.
Relative humidity in Rochester during July averages 69%. The most humid July was 2004 at 79%, and the least humid was 2001 at 59%.
July receives about 5.7 kWh/m²/day of solar energy in Rochester. The sunniest July was 2018 at 6.6 kWh/m²/day, and the cloudiest was 1984 at 4.2.
Average wind speed in Rochester during July is 0.4 m/s. The windiest Julys were 2023, 2024 and 2025, among others at 0.4 m/s, while the calmest was 1994 at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.8°C | 21.5°C | 21.6°C | 22.7°C | 23.3°C | +1.5°C |
| Avg High | 27.7°C | 27.2°C | 27.0°C | 28.3°C | 28.9°C | +1.2°C |
| Avg Low | 16.0°C | 15.8°C | 16.1°C | 17.1°C | 17.6°C | +1.6°C |
| Avg Rain | 80 mm | 87 mm | 97 mm | 95 mm | 108 mm | +28 mm |
July temperatures in Rochester have risen by about 1.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 8.2°C (1986) to a record high of 37.3°C (2020).
Rainfall in July is a relatively wet time of year, averaging 92 mm, with a wettest year of 223 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Rochester
July is one of the best times to visit Rochester. Expect days averaging 27.7°C and nights around 16.4°C (mean 22°C) — warmer than Rochester's yearly average — with higher rainfall (92 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 | 30.2°C | 24.2°C | 18.2°C | 35.5°C | 12.1°C | 63 mm | 67% | 0.4 m/s | 6.3 |
| 2024 | 29.6°C | 23.6°C | 17.6°C | 33.9°C | 12.2°C | 91 mm | 68% | 0.4 m/s | 5.9 |
| 2023 | 28.6°C | 22.9°C | 17.1°C | 34.4°C | 14.3°C | 133 mm | 72% | 0.4 m/s | 5.6 |
| 2022 | 29.0°C | 23.0°C | 17.1°C | 34.2°C | 12.9°C | 76 mm | 63% | 0.4 m/s | 6.3 |
| 2021 | 25.8°C | 21.0°C | 16.3°C | 31.3°C | 11.2°C | 170 mm | 78% | 0.4 m/s | 5 |
| 2020 🔥 | 30.4°C | 24.9°C | 19.3°C | 37.3°C | 16.4°C | 115 mm | 68% | 0.4 m/s | 6.4 |
| 2019 | 28.3°C | 23.1°C | 17.9°C | 32.8°C | 12.9°C | 84 mm | 76% | 0.4 m/s | 6 |
| 2018 | 29.6°C | 23.7°C | 17.8°C | 36.4°C | 12.4°C | 106 mm | 67% | 0.4 m/s | 6.6 |
| 2017 | 26.3°C | 21.3°C | 16.3°C | 31.2°C | 12.0°C | 140 mm | 79% | 0.4 m/s | 5.5 |
| 2016 | 29.8°C | 23.8°C | 17.8°C | 34.7°C | 12.3°C | 44 mm | 62% | 0.4 m/s | 6.1 |
| 2015 | 26.9°C | 21.3°C | 15.6°C | 33.8°C | 9.3°C | 79 mm | 71% | 0.4 m/s | 6.2 |
| 2014 | 25.9°C | 20.5°C | 15.1°C | 32.1°C | 10.8°C | 152 mm | 73% | 0.4 m/s | 5.6 |
| 2013 | 27.1°C | 22.4°C | 17.6°C | 32.4°C | 12.0°C | 109 mm | 78% | 0.4 m/s | 5.7 |
| 2012 | 30.2°C | 24.2°C | 18.2°C | 35.7°C | 14.9°C | 76 mm | 63% | 0.4 m/s | 6.3 |
| 2011 | 29.2°C | 23.4°C | 17.6°C | 35.9°C | 11.0°C | 34 mm | 68% | 0.4 m/s | 6.4 |
| 2010 | 29.2°C | 23.3°C | 17.5°C | 36.4°C | 10.2°C | 121 mm | 68% | 0.4 m/s | 6.2 |
| 2009 | 24.7°C | 19.7°C | 14.6°C | 29.7°C | 10.5°C | 102 mm | 75% | 0.4 m/s | 5.4 |
| 2008 | 27.5°C | 22.1°C | 16.7°C | 32.2°C | 11.8°C | 122 mm | 73% | 0.4 m/s | 5.5 |
| 2007 | 26.7°C | 21.1°C | 15.5°C | 33.6°C | 10.3°C | 87 mm | 67% | 0.4 m/s | 5.7 |
| 2006 | 28.0°C | 22.9°C | 17.8°C | 32.0°C | 13.1°C | 164 mm | 75% | 0.4 m/s | 5.7 |
| 2005 | 29.8°C | 23.8°C | 17.9°C | 34.3°C | 11.3°C | 89 mm | 67% | 0.4 m/s | 5.9 |
| 2004 | 25.6°C | 20.9°C | 16.1°C | 30.5°C | 13.0°C | 150 mm | 79% | 0.4 m/s | 4.8 |
| 2003 | 27.3°C | 21.6°C | 16.0°C | 31.7°C | 11.6°C | 98 mm | 69% | 0.4 m/s | 5.5 |
| 2002 | 28.8°C | 22.8°C | 16.8°C | 33.3°C | 10.9°C | 53 mm | 65% | 0.4 m/s | 6 |
| 2001 | 26.9°C | 20.9°C | 14.9°C | 35.1°C | 8.9°C | 34 mm | 59% | 0.4 m/s | 6 |
| 2000 | 25.0°C | 19.7°C | 14.3°C | 29.6°C | 11.5°C | 68 mm | 72% | 0.4 m/s | 5.7 |
| 1999 | 30.2°C | 24.0°C | 17.8°C | 35.7°C | 11.3°C | 58 mm | 60% | 0.4 m/s | 6.2 |
| 1998 | 25.9°C | 20.9°C | 15.9°C | 30.2°C | 13.1°C | 107 mm | 73% | 0.4 m/s | 5.8 |
| 1997 | 26.6°C | 20.8°C | 15.0°C | 32.9°C | 10.8°C | 57 mm | 67% | 0.4 m/s | 5.9 |
| 1996 | 25.1°C | 19.7°C | 14.2°C | 30.2°C | 9.5°C | 68 mm | 73% | 0.4 m/s | 5.9 |
| 1995 | 28.7°C | 22.7°C | 16.7°C | 35.2°C | 9.6°C | 87 mm | 69% | 0.4 m/s | 5.2 |
| 1994 | 28.5°C | 22.6°C | 16.7°C | 33.6°C | 11.9°C | 46 mm | 70% | 0.3 m/s | 5.8 |
| 1993 | 28.6°C | 22.5°C | 16.4°C | 36.4°C | 11.3°C | 69 mm | 66% | 0.4 m/s | 5.9 |
| 1992 ❄️ 🌧️ | 23.9°C | 18.9°C | 14.0°C | 29.8°C | 9.2°C | 223 mm | 78% | 0.4 m/s | 5.1 |
| 1991 | 28.1°C | 22.0°C | 15.8°C | 34.4°C | 12.4°C | 69 mm | 64% | 0.4 m/s | 5.6 |
| 1990 | 26.5°C | 21.0°C | 15.5°C | 32.3°C | 11.0°C | 83 mm | 71% | 0.4 m/s | 5.3 |
| 1989 | 27.0°C | 21.4°C | 15.9°C | 35.2°C | 11.1°C | 36 mm | 72% | 0.4 m/s | 5.8 |
| 1988 | 29.9°C | 23.4°C | 17.0°C | 35.6°C | 9.4°C | 117 mm | 62% | 0.4 m/s | 5.4 |
| 1987 | 28.5°C | 22.9°C | 17.4°C | 33.6°C | 11.5°C | 109 mm | 70% | 0.4 m/s | 5.7 |
| 1986 | 26.7°C | 21.2°C | 15.7°C | 31.6°C | 8.2°C | 121 mm | 72% | 0.4 m/s | 5.4 |
| 1985 | 26.7°C | 20.6°C | 14.4°C | 32.6°C | 10.3°C | 66 mm | 65% | 0.4 m/s | 5.3 |
| 1984 | 26.1°C | 20.4°C | 14.8°C | 31.0°C | 9.3°C | 56 mm | 70% | 0.4 m/s | 4.2 |
| 1983 | 29.2°C | 23.3°C | 17.3°C | 33.8°C | 10.5°C | 41 mm | 62% | 0.4 m/s | — |
| 1982 | 28.0°C | 21.9°C | 15.7°C | 33.9°C | 9.0°C | 61 mm | 65% | 0.4 m/s | — |
| 1981 | 26.9°C | 21.5°C | 16.0°C | 32.7°C | 10.5°C | 112 mm | 69% | 0.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 27.7°C with lows near 16.4°C (mean 22°C), based on 45 years of NASA POWER data.
July averages 92 mm of rainfall in Rochester, a relatively wet time of year. The wettest on record was 223 mm in 1992.
The hottest July reached 37.3°C in 2020. The coldest dipped to 8.2°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.4°C. Daytime highs moved from 27.4°C to 28.6°C and overnight lows from 15.6°C to 17.3°C over the same span.
July is one of the warmer months of the year in Rochester and a relatively wet time of year, so plan for around 27.7°C daytime highs and 16.4°C at night.
Not quite — July is the 12th coolest month in Rochester, averaging 22°C.
For July in Rochester, pack light layers you can adjust through the day, with typical highs of 27.7°C and lows of 16.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 69% — moderately humid.
Average wind speed in July is 0.4 m/s. The windiest July on record averaged 0.4 m/s (1981).
The wettest July on record was 1992 with 223 mm. On average, July sees 92 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 Rochester 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.
