What is the hottest month in Rochester?

July is the warmest month in Rochester, with an average high of 82.5°F.

What is the coldest month in Rochester?

January is the coldest month in Rochester, with an average low of 19.0°F.

What month does Rochester get the most rain?

July is typically the wettest month in Rochester, with about 3.56 inches of precipitation.

What plant hardiness zone is Rochester in?

Rochester is approximately in USDA plant hardiness Zone 7a, based on the average annual extreme minimum temperature.

Has the climate in Rochester changed recently?

13.7% of Rochester's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Rochester, NY

Climate overview — based on NOAA 1991-2020 normals from ROCHESTER GTR INTL AP, NY US.

Dfa Hot-summer humid continental climate 7a USDA hardiness Zone 7a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Rochester has an annual average temperature of 49.5°F with about 35.1 inches of precipitation per year and 102 inches of snow. The warmest month is July (average high 82.5°F), and the coldest is January (average low 19.0°F). July is typically the wettest month (3.56 in) and February the driest (2.13 in). Snow typically falls from November through April.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

46.1°F

warmest to coldest month

Heating need

6,039

HDD/yr

Cooling need

468

CDD/yr

Best time to visit Rochester

Full guide →

Climate change signal

All-time records →

50 of 366 (13.7%) of Rochester's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1920s		12
1930s		45
1940s		59
1950s		49
1960s		27
1970s		27
1980s		25
1990s		29
2000s		28
2010s		42
2020s		23

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	33.4°F	19.0°F	26.2°F	2.55 in	27.4 in	20
February	35.2°F	19.6°F	27.4°F	2.13 in	23.1 in	16
March	43.6°F	26.8°F	35.2°F	2.49 in	17.9 in	15
April	56.6°F	37.1°F	46.8°F	2.99 in	3.0 in	13
May	69.4°F	48.2°F	58.8°F	2.86 in	0.1 in	12
June	77.9°F	57.4°F	67.6°F	3.37 in	—	12
July	82.5°F	62.2°F	72.3°F	3.56 in	—	11
August	80.5°F	61.0°F	70.7°F	3.31 in	—	10
September	73.6°F	53.6°F	63.6°F	3.18 in	—	11
October	61.2°F	43.3°F	52.2°F	3.22 in	0.1 in	14
November	49.1°F	34.0°F	41.5°F	2.76 in	8.1 in	15
December	38.5°F	25.4°F	32.0°F	2.67 in	22.3 in	18