What is the hottest month in Edgewood?

July is the warmest month in Edgewood, with an average high of 88.5°F.

What is the coldest month in Edgewood?

January is the coldest month in Edgewood, with an average low of 20.1°F.

What month does Edgewood get the most rain?

May is typically the wettest month in Edgewood, with about 5.27 inches of precipitation.

What plant hardiness zone is Edgewood in?

Edgewood is approximately in USDA plant hardiness Zone 7b, based on the average annual extreme minimum temperature.

Edgewood, IL

Climate overview — based on NOAA 1991-2020 normals from EFFINGHAM 3SW, IL US.

Dfa Hot-summer humid continental climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Edgewood has an annual average temperature of 54.4°F with about 44 inches of precipitation per year and 14.6 inches of snow. The warmest month is July (average high 88.5°F), and the coldest is January (average low 20.1°F). May is typically the wettest month (5.27 in) and February the driest (2.44 in). Snow typically falls from November through April.

Pleasant months

1 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

48.4°F

warmest to coldest month

Heating need

4,863

HDD/yr

Cooling need

1,050

CDD/yr

Best time to visit Edgewood

Full guide →

Climate change signal

All-time records →

25 of 366 (6.8%) of Edgewood'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		22
1900s		9
1910s		38
1920s		51
1930s		70
1940s		14
1950s		40
1960s		24
1970s		13
1980s		15
1990s		6
2000s		22
2010s		39
2020s		3

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	37.4°F	20.1°F	28.8°F	2.93 in	5.3 in	9
February	42.5°F	23.4°F	33.0°F	2.44 in	4.6 in	9
March	53.5°F	32.4°F	42.9°F	3.30 in	1.5 in	11
April	65.9°F	42.4°F	54.2°F	4.84 in	0.2 in	11
May	76.2°F	53.6°F	64.9°F	5.27 in	—	12
June	85.1°F	62.8°F	74.0°F	4.87 in	—	11
July	88.5°F	66.0°F	77.2°F	4.29 in	—	9
August	87.2°F	63.7°F	75.4°F	3.19 in	—	8
September	81.2°F	55.5°F	68.4°F	2.89 in	—	8
October	68.8°F	44.1°F	56.4°F	3.49 in	—	9
November	54.0°F	33.7°F	43.9°F	3.73 in	0.6 in	10
December	42.2°F	25.4°F	33.8°F	2.77 in	2.4 in	10