No, it hasn't snowed yet.

Here's a field on State Route 235 just south of U.S. 30. The farmer has applied lime on the fields to raise the pH of the soil.

According to Mark Badertscher of the Hardin County Extension office: Generally, fertilizers that are applied to soils for plant nutrition lower the pH of soils over time. Therefore, ag lime is applied according to soil test recommendations to raise the pH of the soil to a range that plants will grow better. 

Having the proper pH in the soil is important in order that the plant nutrients from fertilizer are available to the crops.  You can read more about the use of ag lime at http://ohioline.osu.edu/agf-fact/0505.html.