Cassopolis, MI

Climate overview — based on NOAA 1991-2020 normals from DOWAGIAC 1 W, MI US.

Dfb Warm-summer humid continental climate 7a USDA hardiness Zone 7a

Year-round temperatures (°F)

10° 30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Cassopolis has an annual average temperature of 48.1°F with about 41.7 inches of precipitation per year. The warmest month is July (average high 81.5°F), and the coldest is January (average low 16.2°F). October is typically the wettest month (4.33 in) and February the driest (2.41 in).

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
47.1°F
warmest to coldest month
Heating need
6,465
Cooling need
366

Best time to visit Cassopolis

Full guide →

Climate change signal

All-time records →

32 of 366 (8.7%) of Cassopolis'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.

1950s
66
1960s
49
1970s
43
1980s
59
1990s
60
2000s
34
2010s
42
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 31.1°F 16.2°F 23.7°F 3.10 in 15
February 34.2°F 17.6°F 25.9°F 2.41 in 12
March 44.4°F 25.2°F 34.8°F 2.44 in 10
April 57.4°F 35.5°F 46.4°F 3.69 in 11
May 68.6°F 47.1°F 57.9°F 4.19 in 12
June 78.0°F 56.9°F 67.4°F 4.26 in 10
July 81.5°F 60.0°F 70.8°F 4.09 in 9
August 79.7°F 58.2°F 69.0°F 4.12 in 9
September 73.5°F 50.6°F 62.1°F 3.38 in 9
October 60.9°F 39.7°F 50.3°F 4.33 in 11
November 47.2°F 30.8°F 39.0°F 2.90 in 11
December 36.2°F 22.5°F 29.4°F 2.82 in 13

Climate twins of Cassopolis

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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