What is the hottest month in Gardner?

July is the warmest month in Gardner, with an average high of 79.6°F.

What is the coldest month in Gardner?

January is the coldest month in Gardner, with an average low of 13.6°F.

What month does Gardner get the most rain?

October is typically the wettest month in Gardner, with about 5.08 inches of precipitation.

What plant hardiness zone is Gardner in?

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

Has the climate in Gardner changed recently?

56.8% of Gardner'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.

Gardner, MA

Climate overview — based on NOAA 1991-2020 normals from ASHBURNHAM, MA US.

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

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Gardner has an annual average temperature of 46.1°F with about 49.3 inches of precipitation per year and 75.2 inches of snow. The warmest month is July (average high 79.6°F), and the coldest is January (average low 13.6°F). October is typically the wettest month (5.08 in) and February the driest (3.34 in). Snow typically falls from October through April.

Pleasant months

4 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

47.5°F

warmest to coldest month

Heating need

7,008

HDD/yr

Cooling need

219

CDD/yr

Best time to visit Gardner

Full guide →

Climate change signal

All-time records →

208 of 366 (56.8%) of Gardner'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		18
1910s		15
1920s		6
1930s		2
1940s		0
1950s		0
1960s		0
1970s		0
1980s		0
1990s		0
2000s		26
2010s		183
2020s		116

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	30.6°F	13.6°F	22.1°F	3.55 in	16.9 in	13
February	33.0°F	15.0°F	24.0°F	3.34 in	18.9 in	11
March	41.3°F	22.7°F	32.0°F	4.41 in	16.4 in	13
April	54.6°F	33.6°F	44.1°F	4.21 in	4.0 in	12
May	66.0°F	44.3°F	55.1°F	4.02 in	0.1 in	13
June	74.6°F	53.7°F	64.1°F	4.17 in	—	12
July	79.6°F	59.6°F	69.6°F	3.94 in	—	11
August	78.1°F	57.4°F	67.7°F	3.89 in	—	10
September	70.8°F	50.7°F	60.8°F	4.24 in	—	9
October	57.4°F	39.2°F	48.3°F	5.08 in	0.3 in	11
November	45.9°F	30.5°F	38.2°F	3.82 in	3.0 in	11
December	35.2°F	20.2°F	27.7°F	4.65 in	15.6 in	13