What is the hottest month in Wooster?

July is the warmest month in Wooster, with an average high of 83.6°F.

What is the coldest month in Wooster?

January is the coldest month in Wooster, with an average low of 18.2°F.

What month does Wooster get the most rain?

June is typically the wettest month in Wooster, with about 4.77 inches of precipitation.

What plant hardiness zone is Wooster in?

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

Has the climate in Wooster changed recently?

8.2% of Wooster'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.

Wooster, OH

Climate overview — based on NOAA 1991-2020 normals from WOOSTER EXP STATION, OH US.

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

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Wooster has an annual average temperature of 50.2°F with about 42 inches of precipitation per year and 28.6 inches of snow. The warmest month is July (average high 83.6°F), and the coldest is January (average low 18.2°F). June is typically the wettest month (4.77 in) and February the driest (2.04 in). Snow typically falls from November through April.

Pleasant months

1 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

45.4°F

warmest to coldest month

Heating need

5,799

HDD/yr

Cooling need

486

CDD/yr

Best time to visit Wooster

Full guide →

Climate change signal

All-time records →

30 of 366 (8.2%) of Wooster'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.

1890s		1
1900s		29
1910s		45
1920s		38
1930s		75
1940s		26
1950s		36
1960s		12
1970s		9
1980s		18
1990s		18
2000s		15
2010s		36
2020s		8

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	35.1°F	18.2°F	26.7°F	2.59 in	9.4 in	14
February	38.4°F	19.8°F	29.1°F	2.04 in	7.0 in	12
March	48.1°F	27.4°F	37.8°F	2.98 in	4.9 in	12
April	61.3°F	37.7°F	49.5°F	4.04 in	0.7 in	13
May	71.8°F	48.0°F	59.9°F	4.53 in	—	14
June	80.1°F	57.0°F	68.6°F	4.77 in	—	12
July	83.6°F	60.5°F	72.1°F	4.41 in	—	11
August	82.3°F	58.8°F	70.5°F	3.87 in	—	9
September	75.8°F	51.5°F	63.6°F	3.58 in	—	9
October	63.6°F	40.5°F	52.1°F	3.49 in	—	11
November	50.6°F	31.5°F	41.1°F	2.96 in	1.2 in	11
December	39.8°F	24.0°F	31.9°F	2.72 in	5.4 in	13