What is the hottest month in Niagara?

July is the warmest month in Niagara, with an average high of 80.4°F.

What is the coldest month in Niagara?

January is the coldest month in Niagara, with an average low of 4.4°F.

What month does Niagara get the most rain?

June is typically the wettest month in Niagara, with about 3.71 inches of precipitation.

What plant hardiness zone is Niagara in?

Niagara is approximately in USDA plant hardiness Zone 5b, based on the average annual extreme minimum temperature.

Has the climate in Niagara changed recently?

9.3% of Niagara'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.

Niagara, WI

Climate overview — based on NOAA 1991-2020 normals from IRON MTN-KINGSFORD WWTP, MI US.

Dfb Warm-summer humid continental climate 5b USDA hardiness Zone 5b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Niagara has an annual average temperature of 42.5°F with about 31.5 inches of precipitation per year and 61 inches of snow. The warmest month is July (average high 80.4°F), and the coldest is January (average low 4.4°F). June is typically the wettest month (3.71 in) and February the driest (1.15 in). Snow typically falls from October through May.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

54.3°F

warmest to coldest month

Heating need

8,241

HDD/yr

Cooling need

156

CDD/yr

Best time to visit Niagara

Full guide →

Climate change signal

All-time records →

34 of 366 (9.3%) of Niagara'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		3
1900s		18
1910s		40
1920s		26
1930s		37
1940s		32
1950s		23
1960s		12
1970s		21
1980s		30
1990s		41
2000s		32
2010s		31
2020s		20

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	24.0°F	4.4°F	14.2°F	1.36 in	14.7 in	10
February	28.3°F	6.1°F	17.2°F	1.15 in	11.2 in	7
March	39.2°F	16.9°F	28.0°F	1.68 in	8.9 in	8
April	51.9°F	29.0°F	40.5°F	2.79 in	7.1 in	10
May	66.4°F	41.7°F	54.1°F	3.48 in	0.2 in	12
June	76.0°F	52.0°F	64.0°F	3.71 in	—	12
July	80.4°F	56.6°F	68.5°F	3.41 in	—	12
August	78.3°F	55.1°F	66.7°F	3.38 in	—	11
September	70.1°F	47.0°F	58.6°F	3.60 in	—	11
October	55.7°F	34.9°F	45.3°F	3.27 in	0.4 in	12
November	40.8°F	24.2°F	32.5°F	1.90 in	5.5 in	9
December	29.0°F	12.8°F	20.9°F	1.76 in	13.0 in	10