What is the hottest month in Dexter?

July is the warmest month in Dexter, with an average high of 79.3°F.

What is the coldest month in Dexter?

January is the coldest month in Dexter, with an average low of 4.6°F.

What month does Dexter get the most rain?

June is typically the wettest month in Dexter, with about 5.70 inches of precipitation.

What plant hardiness zone is Dexter in?

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

Has the climate in Dexter changed recently?

9.8% of Dexter'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.

Dexter, MN

Climate overview — based on NOAA 1991-2020 normals from GRAND MEADOW, MN US.

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

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Dexter has an annual average temperature of 42.9°F with about 37.4 inches of precipitation per year and 50.6 inches of snow. The warmest month is July (average high 79.3°F), and the coldest is January (average low 4.6°F). June is typically the wettest month (5.70 in) and February the driest (0.87 in). Snow typically falls from October through May.

Pleasant months

3 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

56.3°F

warmest to coldest month

Heating need

8,142

HDD/yr

Cooling need

201

CDD/yr

Best time to visit Dexter

Full guide →

Climate change signal

All-time records →

36 of 366 (9.8%) of Dexter'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		43
1900s		27
1910s		32
1920s		14
1930s		69
1940s		24
1950s		10
1960s		18
1970s		7
1980s		27
1990s		24
2000s		16
2010s		22
2020s		33

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	20.9°F	4.6°F	12.7°F	1.02 in	11.0 in	7
February	25.3°F	8.2°F	16.8°F	0.87 in	10.8 in	5
March	37.9°F	20.1°F	29.0°F	1.85 in	8.5 in	7
April	53.5°F	31.9°F	42.7°F	3.90 in	2.9 in	11
May	66.1°F	44.3°F	55.2°F	5.06 in	0.5 in	13
June	76.2°F	55.7°F	66.0°F	5.70 in	—	12
July	79.3°F	58.6°F	69.0°F	4.66 in	—	9
August	77.4°F	56.0°F	66.7°F	4.22 in	—	9
September	71.1°F	47.8°F	59.4°F	4.07 in	—	9
October	57.2°F	35.3°F	46.2°F	2.95 in	0.6 in	9
November	40.6°F	23.4°F	32.0°F	1.82 in	2.5 in	7
December	27.1°F	12.2°F	19.6°F	1.25 in	13.8 in	7