Lerna is located in Coles County, Illinois. There are roughly 9 residents, living in 4 households. The average temperature for Lerna this time of the year is low of 65F and high of 87F. On average, Lerna gets about 4.37 inches of precipitation in July. Most residents are home owners (88%), have a post secondary degree (50%) and are married, no kids (44%).
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