Rochester, NY Weather
Rochester hourly forecast: next 24 hours
Today's high of 77°F (25°C) is about 3°F (2°C) above the typical September high of 74°F (23°C).
Current conditions in detail
Rochester weather tomorrow (Wednesday, September 16)
Tomorrow in Rochester looks overcast, with a high of 71° and an overnight low of 68°. Precipitation chance is modest at 20%. Winds top out near 11 mph, and the UV index reaches 3 (moderate).
Rochester 14-day forecast
About the weather in Rochester
Rochester runs one of the wider annual swings in our dataset: 25°C separates the average July from the average January. Afternoons reach 81°F (27°C) at the peak of summer and 33°F (1°C) at the depth of winter, with 156 days of measurable precipitation through the year.
Rochester weather: quick facts
- Hottest month: July - highs near 81°F (27°C)
- Coldest month: January - highs near 33°F (1°C)
- Decade extremes (2015-2024): 94°F (35°C) high · -5°F (-21°C) low
- Wettest month: October (13 rainy days) · Sunniest: July (12.3 h sun/day)
- Climate type: humid subtropical
- Annual swing: 25°C between the average warmest and coolest month · day to night: 8°C
- Snow: about 31 days a year
- Months with freezing average lows: 4
- Average humidity: 72%
Temperatures through the year
Overnight lows average at or below freezing for 4 months, December through March. Warmth peaks in July: highs of 81°F (27°C), lows of 65°F (18°C). January is the coolest month, with highs of 33°F (1°C) and lows near 21°F (-6°C). Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 94°F (35°C) and the lowest daily minimum -5°F (-21°C). Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is May through June.
Rain, sun and snow
Sunshine averages 8.1 hours a day over the year - duller than about 81% of the cities we track, peaking in July at 12.3 hours. Snow falls on roughly 31 days a year, mostly November through April.
Season by season
Spring (March through May)
Spring in Rochester is crisp but comfortable, with daytime highs averaging 54°F (12°C) and nights around 38°F (3°C); rain falls on around 38 of the 90 days, plus about 6 snowy days.
Summer (June through August)
Summer is mild and warm here - highs near 78°F (26°C), nights near 62°F (17°C), and rain falls on around 37 of the 90 days. Daylight is generous - around 11.8 hours of sun a day.
Fall (September through November)
Fall is mild here - highs near 61°F (16°C), nights near 47°F (9°C), and rain falls on around 35 of the 90 days, plus about 3 snowy days.
Winter (December through February)
Winter brings deep cold here - highs near 36°F (2°C), nights near 24°F (-5°C), and rain falls on around 46 of the 90 days, plus about 22 snowy days. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
Average temperatures in Rochester by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 33° | 21° | 15 | 3.1 in | 3.9 h/day | 74% |
| February | 36° | 21° | 14 | 3.1 in | 5.5 h/day | 71% |
| March | 43° | 28° | 12 | 2.9 in | 7.2 h/day | 70% |
| April | 53° | 37° | 15 | 4.0 in | 8.5 h/day | 70% |
| May | 65° | 49° | 12 | 3.1 in | 10.7 h/day | 72% |
| June | 74° | 58° | 12 | 3.4 in | 11.7 h/day | 70% |
| July | 81° | 65° | 12 | 3.8 in | 12.3 h/day | 71% |
| August | 79° | 64° | 12 | 3.8 in | 11.4 h/day | 73% |
| September | 74° | 58° | 10 | 3.2 in | 9.9 h/day | 74% |
| October | 61° | 48° | 13 | 4.8 in | 6.6 h/day | 74% |
| November | 48° | 36° | 12 | 3.1 in | 5.5 h/day | 72% |
| December | 39° | 29° | 17 | 3.6 in | 3.8 h/day | 76% |