July is one of the warmer months of the year in Amherst, with average highs near 22.7°C and lows around 14.4°C (mean 18.6°C). It is about average for rainfall, averaging 81 mm of rainfall and 82% relative humidity across the period.
July is one of the warmer months of the year in Amherst. Across 45 years of records, the warmest July in Amherst was 2023 — when the month averaged 21.2°C — while the coldest were 1986 and 1992 at 16.1°C. Typical July days reach 22.7°C with nights near 14.4°C. The long-term trend is warming, about 0.4°C per decade.
July is about average for rainfall in Amherst, averaging 81 mm of rainfall. The wettest July on record was 2021 with 140 mm, while the driest was 1987 at 22 mm.
Relative humidity in Amherst during July averages 82%. The most humid July was 2023 at 86%, and the least humid was 1987 at 78%.
July receives about 5.6 kWh/m²/day of solar energy in Amherst. The sunniest July was 1997 at 6.4 kWh/m²/day, and the cloudiest were 2004, 2009 and 2021, among others at 4.8.
Average wind speed in Amherst during July is 0.8 m/s. The windiest Julys were 2021 and 2022 at 1 m/s, while the calmest was 1988 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.0°C | 18.3°C | 18.3°C | 19.0°C | 19.7°C | +1.7°C |
| Avg High | 22.2°C | 22.5°C | 22.4°C | 23.2°C | 23.9°C | +1.7°C |
| Avg Low | 13.8°C | 14.0°C | 14.2°C | 14.9°C | 15.6°C | +1.8°C |
| Avg Rain | 87 mm | 74 mm | 79 mm | 77 mm | 93 mm | +6 mm |
July temperatures in Amherst have risen by about 1.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 7.3°C (1992) to a record high of 29.3°C (2013).
Rainfall in July is about average for rainfall, averaging 81 mm, with a wettest year of 140 mm.
One of the best times to visit Amherst
July is one of the best times to visit Amherst. Expect days averaging 22.7°C and nights around 14.4°C (mean 18.6°C) — warmer than Amherst's yearly average — with higher rainfall (81 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 | 24.4°C | 19.8°C | 15.2°C | 27.9°C | 11.6°C | 43 mm | 79% | 0.8 m/s | 5.9 |
| 2024 | 24.6°C | 20.4°C | 16.2°C | 27.7°C | 12.2°C | 91 mm | 83% | 0.8 m/s | 5.5 |
| 2023 🔥 | 25.1°C | 21.2°C | 17.4°C | 28.7°C | 14.4°C | 128 mm | 86% | 0.7 m/s | 5.3 |
| 2022 | 23.7°C | 19.5°C | 15.4°C | 27.8°C | 11.0°C | 69 mm | 80% | 1 m/s | 6.2 |
| 2021 🌧️ | 22.0°C | 18.1°C | 14.1°C | 26.4°C | 10.7°C | 140 mm | 82% | 1 m/s | 4.8 |
| 2020 | 23.6°C | 19.5°C | 15.4°C | 27.7°C | 11.3°C | 90 mm | 83% | 0.8 m/s | 5.4 |
| 2019 | 23.2°C | 18.8°C | 14.4°C | 28.8°C | 10.8°C | 46 mm | 82% | 0.8 m/s | 6 |
| 2018 | 24.4°C | 20.2°C | 15.9°C | 27.8°C | 11.6°C | 77 mm | 82% | 0.8 m/s | 6.2 |
| 2017 | 22.7°C | 18.3°C | 13.9°C | 27.1°C | 10.4°C | 41 mm | 79% | 0.8 m/s | 5.9 |
| 2016 | 22.7°C | 18.6°C | 14.6°C | 27.7°C | 9.9°C | 70 mm | 82% | 0.8 m/s | 5.7 |
| 2015 | 22.1°C | 17.9°C | 13.7°C | 25.8°C | 11.1°C | 89 mm | 84% | 0.8 m/s | 5.5 |
| 2014 | 23.7°C | 19.8°C | 15.8°C | 26.5°C | 12.1°C | 84 mm | 83% | 0.9 m/s | 5.4 |
| 2013 | 23.9°C | 19.8°C | 15.7°C | 29.3°C | 12.0°C | 87 mm | 82% | 0.8 m/s | 5.4 |
| 2012 | 23.4°C | 19.0°C | 14.7°C | 25.9°C | 11.8°C | 49 mm | 80% | 0.8 m/s | 6.2 |
| 2011 | 22.3°C | 18.3°C | 14.3°C | 26.7°C | 11.1°C | 121 mm | 84% | 0.8 m/s | 5.3 |
| 2010 | 23.3°C | 19.5°C | 15.8°C | 26.4°C | 11.6°C | 110 mm | 84% | 0.8 m/s | 5.7 |
| 2009 | 21.6°C | 17.7°C | 13.7°C | 26.6°C | 8.6°C | 125 mm | 85% | 0.8 m/s | 4.8 |
| 2008 | 23.7°C | 19.5°C | 15.3°C | 26.5°C | 12.4°C | 59 mm | 84% | 0.8 m/s | 5.5 |
| 2007 | 22.8°C | 18.6°C | 14.4°C | 28.3°C | 9.1°C | 86 mm | 84% | 0.7 m/s | 5.4 |
| 2006 | 22.9°C | 18.9°C | 14.9°C | 26.6°C | 11.1°C | 118 mm | 85% | 0.7 m/s | 5.5 |
| 2005 | 21.9°C | 17.7°C | 13.4°C | 27.7°C | 10.1°C | 79 mm | 83% | 0.8 m/s | 5.4 |
| 2004 | 22.6°C | 18.5°C | 14.3°C | 26.2°C | 10.1°C | 49 mm | 84% | 0.7 m/s | 4.8 |
| 2003 | 22.7°C | 18.9°C | 15.0°C | 25.4°C | 12.5°C | 79 mm | 84% | 0.8 m/s | 5.4 |
| 2002 | 22.1°C | 17.9°C | 13.6°C | 26.9°C | 9.6°C | 80 mm | 82% | 0.8 m/s | 5.5 |
| 2001 | 21.6°C | 17.4°C | 13.2°C | 25.6°C | 9.8°C | 40 mm | 81% | 0.9 m/s | 6 |
| 2000 | 21.8°C | 17.7°C | 13.7°C | 27.2°C | 11.4°C | 76 mm | 82% | 0.8 m/s | 5.5 |
| 1999 | 23.7°C | 19.3°C | 14.9°C | 27.5°C | 11.0°C | 76 mm | 79% | 0.7 m/s | 5.5 |
| 1998 | 23.2°C | 18.9°C | 14.6°C | 26.2°C | 10.9°C | 51 mm | 80% | 0.7 m/s | 5.9 |
| 1997 | 22.9°C | 18.3°C | 13.6°C | 27.7°C | 9.9°C | 40 mm | 79% | 0.8 m/s | 6.4 |
| 1996 | 21.1°C | 17.3°C | 13.5°C | 24.4°C | 10.9°C | 111 mm | 84% | 0.8 m/s | 4.9 |
| 1995 | 23.2°C | 19.1°C | 15.0°C | 28.0°C | 12.1°C | 116 mm | 81% | 0.8 m/s | 5.4 |
| 1994 | 24.1°C | 20.1°C | 16.0°C | 27.4°C | 11.7°C | 45 mm | 81% | 0.8 m/s | 5.6 |
| 1993 | 21.5°C | 17.1°C | 12.6°C | 28.0°C | 8.9°C | 85 mm | 81% | 0.7 m/s | 5.4 |
| 1992 | 20.4°C | 16.1°C | 11.8°C | 27.1°C | 7.3°C | 80 mm | 81% | 0.8 m/s | 5.9 |
| 1991 | 22.4°C | 18.1°C | 13.8°C | 27.4°C | 9.0°C | 55 mm | 80% | 0.8 m/s | 5.8 |
| 1990 | 22.7°C | 18.7°C | 14.6°C | 28.2°C | 10.2°C | 80 mm | 82% | 0.7 m/s | 5.5 |
| 1989 | 22.1°C | 17.6°C | 13.0°C | 26.5°C | 9.6°C | 88 mm | 81% | 0.9 m/s | 5.9 |
| 1988 | 22.7°C | 18.5°C | 14.3°C | 26.3°C | 9.0°C | 94 mm | 85% | 0.6 m/s | 4.8 |
| 1987 | 22.8°C | 18.4°C | 14.1°C | 26.4°C | 9.6°C | 22 mm | 78% | 0.8 m/s | 5.8 |
| 1986 ❄️ | 20.2°C | 16.1°C | 12.0°C | 24.6°C | 8.5°C | 130 mm | 83% | 0.8 m/s | 4.8 |
| 1985 | 22.4°C | 18.1°C | 13.8°C | 25.3°C | 10.7°C | 40 mm | 82% | 0.8 m/s | 6.1 |
| 1984 | 23.0°C | 19.0°C | 15.0°C | 26.9°C | 11.4°C | 85 mm | 84% | 0.8 m/s | 5.4 |
| 1983 | 21.8°C | 17.9°C | 13.9°C | 26.1°C | 10.4°C | 118 mm | 82% | 0.9 m/s | — |
| 1982 | 22.6°C | 18.2°C | 13.9°C | 27.1°C | 8.6°C | 105 mm | 82% | 0.9 m/s | — |
| 1981 | 21.9°C | 17.9°C | 13.8°C | 25.8°C | 11.8°C | 101 mm | 83% | 0.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 22.7°C with lows near 14.4°C (mean 18.6°C), based on 45 years of NASA POWER data.
July averages 81 mm of rainfall in Amherst, about average for rainfall. The wettest on record was 140 mm in 2021.
The hottest July reached 29.3°C in 2013. The coldest dipped to 7.3°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.6°C. Daytime highs moved from 22.3°C to 24°C and overnight lows from 14.1°C to 15.7°C over the same span.
July is one of the warmer months of the year in Amherst and about average for rainfall, so plan for around 22.7°C daytime highs and 14.4°C at night.
Not quite — July is the 11th coolest month in Amherst, averaging 18.6°C.
For July in Amherst, pack light layers you can adjust through the day, with typical highs of 22.7°C and lows of 14.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 82% — quite humid.
Average wind speed in July is 0.8 m/s. The windiest July on record averaged 1 m/s (2021).
The wettest July on record was 2021 with 140 mm. On average, July sees 81 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 Amherst 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.
