April is one of the cooler months of the year in Rochester, with average highs near 12.3°C and lows around 1.4°C (mean 6.9°C). It is about average for rainfall, averaging 78 mm of rainfall and 78% relative humidity across the period.
April is one of the cooler months of the year in Rochester. Across 45 years of records, the warmest April in Rochester was 2010 — when the month averaged 10.1°C — while the coldest was 2018 at 3.4°C. Typical April days reach 12.3°C with nights near 1.4°C. The long-term trend is warming, about 0.2°C per decade.
April is about average for rainfall in Rochester, averaging 78 mm of rainfall. The wettest April on record was 2011 with 143 mm, while the driest was 2001 at 25 mm.
Relative humidity in Rochester during April averages 78%. The most humid April was 1984 at 84%, and the least humid was 2010 at 71%.
April receives about 4.4 kWh/m²/day of solar energy in Rochester. The sunniest Aprils were 2008 and 2010 at 5.1 kWh/m²/day, and the cloudiest was 1988 at 3.5.
Average wind speed in Rochester during April is 0.7 m/s. The windiest April was 1982 at 0.9 m/s, while the calmest were 2017, 2021 and 2023, among others at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.6°C | 6.4°C | 7.1°C | 6.8°C | 7.5°C | +0.9°C |
| Avg High | 12.0°C | 11.7°C | 12.6°C | 12.4°C | 12.9°C | +0.9°C |
| Avg Low | 1.2°C | 1.1°C | 1.5°C | 1.3°C | 2.1°C | +0.9°C |
| Avg Rain | 67 mm | 79 mm | 76 mm | 82 mm | 92 mm | +25 mm |
April temperatures in Rochester have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -11.4°C (1982) to a record high of 29.4°C (1990).
Rainfall in April is about average for rainfall, averaging 78 mm, with a wettest year of 143 mm.
A good time to visit Rochester
April is a good time to visit Rochester, with days averaging 12.3°C and nights around 1.4°C (mean 6.9°C, cooler than Rochester's yearly average) and moderate rainfall. July and August are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 13.4°C | 7.5°C | 1.7°C | 25.1°C | -4.6°C | 86 mm | 76% | 0.7 m/s | 4.3 |
| 2024 | 13.6°C | 8.3°C | 3.1°C | 24.3°C | -3.3°C | 108 mm | 80% | 0.7 m/s | 3.9 |
| 2023 | 15.2°C | 9.2°C | 3.2°C | 28.5°C | -4.4°C | 110 mm | 77% | 0.6 m/s | 4.7 |
| 2022 | 11.6°C | 6.4°C | 1.1°C | 26.3°C | -3.5°C | 80 mm | 79% | 0.7 m/s | 4.5 |
| 2021 | 13.5°C | 8.1°C | 2.7°C | 25.7°C | -5.0°C | 82 mm | 75% | 0.6 m/s | 4.4 |
| 2020 | 10.1°C | 5.3°C | 0.5°C | 18.3°C | -4.7°C | 85 mm | 78% | 0.7 m/s | 4.3 |
| 2019 | 12.5°C | 7.1°C | 1.7°C | 21.6°C | -4.7°C | 81 mm | 81% | 0.7 m/s | 3.9 |
| 2018 ❄️ | 8.0°C | 3.4°C | -1.2°C | 19.3°C | -6.5°C | 75 mm | 80% | 0.8 m/s | 4.1 |
| 2017 | 15.0°C | 9.5°C | 4.1°C | 25.5°C | -2.7°C | 116 mm | 81% | 0.6 m/s | 4.2 |
| 2016 | 10.0°C | 4.6°C | -0.7°C | 23.3°C | -8.1°C | 46 mm | 74% | 0.7 m/s | 4.8 |
| 2015 | 13.0°C | 7.1°C | 1.2°C | 23.4°C | -3.8°C | 73 mm | 75% | 0.7 m/s | 4.9 |
| 2014 | 12.1°C | 6.2°C | 0.2°C | 22.2°C | -7.4°C | 98 mm | 78% | 0.6 m/s | 4.4 |
| 2013 | 12.5°C | 6.5°C | 0.6°C | 22.1°C | -6.0°C | 80 mm | 76% | 0.8 m/s | 4.5 |
| 2012 | 12.1°C | 6.6°C | 1.2°C | 26.6°C | -3.0°C | 65 mm | 74% | 0.7 m/s | 4.5 |
| 2011 🌧️ | 12.3°C | 7.1°C | 2.0°C | 23.4°C | -3.1°C | 143 mm | 82% | 0.7 m/s | 3.8 |
| 2010 🔥 | 16.2°C | 10.1°C | 3.9°C | 27.9°C | -0.4°C | 44 mm | 71% | 0.6 m/s | 5.1 |
| 2009 | 13.7°C | 7.9°C | 2.0°C | 27.7°C | -3.7°C | 58 mm | 77% | 0.7 m/s | 4.7 |
| 2008 | 15.9°C | 9.4°C | 2.9°C | 27.2°C | -4.1°C | 53 mm | 78% | 0.6 m/s | 5.1 |
| 2007 | 9.6°C | 5.3°C | 0.9°C | 22.4°C | -7.0°C | 88 mm | 81% | 0.8 m/s | 3.9 |
| 2006 | 12.9°C | 7.4°C | 1.9°C | 21.5°C | -4.1°C | 58 mm | 77% | 0.7 m/s | 5 |
| 2005 | 12.8°C | 7.1°C | 1.3°C | 24.5°C | -2.9°C | 119 mm | 79% | 0.6 m/s | 4.7 |
| 2004 | 12.0°C | 7.0°C | 2.1°C | 24.7°C | -5.8°C | 110 mm | 80% | 0.6 m/s | 4.3 |
| 2003 | 10.7°C | 5.2°C | -0.2°C | 22.9°C | -7.2°C | 48 mm | 80% | 0.6 m/s | 4.2 |
| 2002 | 12.9°C | 7.5°C | 2.1°C | 28.0°C | -4.8°C | 92 mm | 78% | 0.6 m/s | 4.1 |
| 2001 | 14.0°C | 7.7°C | 1.5°C | 26.4°C | -4.1°C | 25 mm | 75% | 0.6 m/s | 4.8 |
| 2000 | 11.0°C | 6.0°C | 0.9°C | 22.7°C | -4.0°C | 109 mm | 81% | 0.7 m/s | 3.8 |
| 1999 | 12.6°C | 6.7°C | 0.9°C | 22.8°C | -4.2°C | 60 mm | 75% | 0.6 m/s | 5 |
| 1998 | 12.8°C | 7.5°C | 2.1°C | 21.4°C | -3.0°C | 58 mm | 77% | 0.6 m/s | 5 |
| 1997 | 10.4°C | 5.2°C | 0.0°C | 21.9°C | -6.7°C | 38 mm | 77% | 0.7 m/s | 4.6 |
| 1996 | 8.9°C | 4.4°C | -0.2°C | 20.3°C | -4.0°C | 129 mm | 82% | 0.6 m/s | 3.7 |
| 1995 | 9.4°C | 4.2°C | -1.1°C | 19.3°C | -7.0°C | 35 mm | 74% | 0.7 m/s | 4.5 |
| 1994 | 13.0°C | 7.1°C | 1.2°C | 25.3°C | -6.6°C | 104 mm | 78% | 0.7 m/s | 4.8 |
| 1993 | 12.1°C | 6.6°C | 1.1°C | 22.8°C | -3.5°C | 83 mm | 82% | 0.6 m/s | 4.3 |
| 1992 | 10.6°C | 5.6°C | 0.5°C | 21.1°C | -5.5°C | 85 mm | 80% | 0.6 m/s | 3.9 |
| 1991 | 14.2°C | 9.1°C | 4.0°C | 23.4°C | -4.3°C | 101 mm | 82% | 0.7 m/s | 4.1 |
| 1990 | 12.9°C | 7.8°C | 2.6°C | 29.4°C | -5.1°C | 95 mm | 79% | 0.7 m/s | 4.3 |
| 1989 | 10.4°C | 4.8°C | -0.8°C | 19.1°C | -4.6°C | 39 mm | 75% | 0.6 m/s | 4.6 |
| 1988 | 11.5°C | 6.2°C | 1.0°C | 19.9°C | -4.2°C | 69 mm | 79% | 0.6 m/s | 3.5 |
| 1987 | 13.6°C | 8.5°C | 3.3°C | 25.9°C | -7.6°C | 86 mm | 82% | 0.6 m/s | 4.5 |
| 1986 | 12.5°C | 7.3°C | 2.0°C | 24.6°C | -3.5°C | 87 mm | 81% | 0.6 m/s | 4.5 |
| 1985 | 14.1°C | 8.4°C | 2.7°C | 27.0°C | -5.1°C | 32 mm | 76% | 0.7 m/s | 4.5 |
| 1984 | 11.7°C | 6.8°C | 1.9°C | 24.7°C | -3.9°C | 87 mm | 84% | 0.6 m/s | 4 |
| 1983 | 10.5°C | 5.7°C | 0.9°C | 21.7°C | -4.9°C | 97 mm | 82% | 0.7 m/s | — |
| 1982 | 10.3°C | 4.6°C | -1.2°C | 22.5°C | -11.4°C | 42 mm | 75% | 0.9 m/s | — |
| 1981 | 13.3°C | 7.3°C | 1.3°C | 22.0°C | -5.0°C | 64 mm | 74% | 0.8 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 12.3°C with lows near 1.4°C (mean 6.9°C), based on 45 years of NASA POWER data.
April averages 78 mm of rainfall in Rochester, about average for rainfall. The wettest on record was 143 mm in 2011.
The hottest April reached 29.4°C in 1990. The coldest dipped to -11.4°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.3°C. Daytime highs moved from 12°C to 13.5°C and overnight lows from 1.1°C to 2.4°C over the same span.
April is one of the cooler months of the year in Rochester and about average for rainfall, so plan for around 12.3°C daytime highs and 1.4°C at night.
Not quite — April is the 6th coolest month in Rochester, averaging 6.9°C.
For April in Rochester, pack warm layers and a jacket for chilly mornings, with typical highs of 12.3°C and lows of 1.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 78% — quite humid.
Average wind speed in April is 0.7 m/s. The windiest April on record averaged 0.9 m/s (1982).
The wettest April on record was 2011 with 143 mm. On average, April sees 78 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 April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
