What is the hottest month in Norwich?

July is the warmest month in Norwich, with an average high of 81.1°F.

What is the coldest month in Norwich?

February is the coldest month in Norwich, with an average low of 11.7°F.

What month does Norwich get the most rain?

June is typically the wettest month in Norwich, with about 4.95 inches of precipitation.

What plant hardiness zone is Norwich in?

Norwich is approximately in USDA plant hardiness Zone 6b, based on the average annual extreme minimum temperature.

Has the climate in Norwich changed recently?

10.7% of Norwich'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.

Norwich, NY

Climate overview — based on NOAA 1991-2020 normals from NORWICH, NY US.

Dfb Warm-summer humid continental climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Norwich has an annual average temperature of 45.9°F with about 45.3 inches of precipitation per year and 74.8 inches of snow. The warmest month is July (average high 81.1°F), and the coldest is February (average low 11.7°F). June is typically the wettest month (4.95 in) and February the driest (2.73 in). Snow typically falls from October through April.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

47.1°F

warmest to coldest month

Heating need

7,056

HDD/yr

Cooling need

186

CDD/yr

Best time to visit Norwich

Full guide →

Climate change signal

All-time records →

39 of 366 (10.7%) of Norwich'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.

1900s		6
1910s		24
1920s		15
1930s		48
1940s		40
1950s		31
1960s		24
1970s		27
1980s		21
1990s		35
2000s		35
2010s		47
2020s		13

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	31.5°F	11.8°F	21.7°F	3.18 in	17.8 in	18
February	33.9°F	11.7°F	22.8°F	2.73 in	17.4 in	14
March	42.7°F	19.9°F	31.3°F	3.51 in	14.7 in	15
April	56.5°F	31.9°F	44.2°F	3.80 in	2.3 in	15
May	68.9°F	42.5°F	55.7°F	3.59 in	—	14
June	77.1°F	52.3°F	64.7°F	4.95 in	—	13
July	81.1°F	56.6°F	68.8°F	4.38 in	—	13
August	79.4°F	55.3°F	67.4°F	4.42 in	—	13
September	72.5°F	47.9°F	60.2°F	4.02 in	—	12
October	60.1°F	37.1°F	48.6°F	3.88 in	0.3 in	15
November	47.4°F	27.4°F	37.4°F	3.22 in	5.6 in	15
December	36.5°F	19.9°F	28.2°F	3.59 in	16.7 in	17