Climate averages 1991–2020
Rochester (New York), United States weather
in April.
A cool, wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Rochester (New York), United States: daytime highs average 10.9°C and nights cool to about 2.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 100 mm of rain on roughly 12 days, which makes April a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average April day.
The nearest other city in this atlas is Cheektowaga (97 km away). In April its highs average 11.9°C, 1.0°C warmer than Rochester (New York), United States, with 93 mm of rain.
Among the 498 cities listed in the United States, Rochester (New York), United States ranks joint 489th of 498 for the warmest April highs and joint 359th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Rochester (New York), United States is 8.5°C cooler than that mean.
From April to May, average highs rise by 6.4°C to 17.3°C, and monthly rainfall falls from 100 mm to 81 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rochester (New York), United States climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.2°C-6.7°C | -6.7°C | 85 | 15.5 | 9.49 h |
| February | 0.4°C-7.1°C | -7.1°C | 67 | 11.1 | 10.510 h |
| March | 4.5°C-3.4°C | -3.4°C | 80 | 11.6 | 11.912 h |
| April, selected | 10.9°C2.6°C | 2.6°C | 100 | 11.8 | 13.413 h |
| May | 17.3°C9.0°C | 9.0°C | 81 | 11.4 | 14.615 h |
| June | 22.5°C14.8°C | 14.8°C | 89 | 11.5 | 15.315 h |
| July | 25.7°C18.2°C | 18.2°C | 89 | 11.1 | 15.015 h |
| August | 25.1°C17.8°C | 17.8°C | 80 | 11.7 | 13.914 h |
| September | 21.6°C14.3°C | 14.3°C | 88 | 10.7 | 12.513 h |
| October | 14.8°C8.4°C | 8.4°C | 109 | 13.3 | 11.111 h |
| November | 8.2°C2.3°C | 2.3°C | 95 | 14.0 | 9.810 h |
| December | 2.6°C-2.7°C | -2.7°C | 95 | 15.9 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Cheektowaga in AprilUnited States · 97 kmHigh 11.9°C · Low 2.7°C · 93 mm rain
- Amherst in AprilUnited States · 98 kmHigh 12.1°C · Low 2.9°C · 93 mm rain
- Buffalo in AprilUnited States · 107 kmHigh 10.9°C · Low 2.9°C · 95 mm rain
- Niagara Falls in AprilCanada · 118 kmHigh 11.2°C · Low 2.8°C · 95 mm rain
- Syracuse in AprilUnited States · 120 kmHigh 12.7°C · Low 3.0°C · 107 mm rain
- Oshawa in AprilCanada · 129 kmHigh 9.6°C · Low 2.1°C · 83 mm rain
- St. Catharines in AprilCanada · 132 kmHigh 10.8°C · Low 3.0°C · 97 mm rain
- Whitby in AprilCanada · 134 kmHigh 9.9°C · Low 2.3°C · 84 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rochester) is explained once on the Rochester (New York), United States year overview and on the Sources, method and limits page.