A low pressure system moved through the Ohio Valley on February 15th to the 16th. Snow was primarily found northwest and along the I-71 corridor, with more sleet found to the southeast of it. Numerous reports of a wintery mix cut down overall snow totals significantly.

Winter Storm in MERCER, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Unknown

Based on surrounding observations, it is estimated that portions of the county received up to 8 inches of snow.

Winter Storm in MADISON, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

A spotter located 7 miles west of Plain City measured 5.9 inches of snow. Another spotter southwest of London reported 4.5 inches of snow. Sleet and freezing rain kept lower snowfall totals in the southeastern half of the county at or below this amount.

Winter Storm in UNION, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

The observer 4 miles northwest of Raymond reported 5.8 inches of snow. Just across the county line, a spotter located 7 miles west of Plain City measured 5.9 inches of snow.

Winter Storm in SHELBY, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Social Media

In Sidney, 9.5 inches of snow fell.

Winter Storm in AUGLAIZE, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: CoCoRaHS

The observer located 2 miles east of New Bremen measured 8 inches of snow, as did the observer southwest of Wapakoneta.

Winter Storm in HARDIN, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Unknown

Based on surrounding observations, it is estimated that portions of the county received up to 8 inches of snow.

Winter Storm in HAMILTON, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Social Media

A report from Groesbeck showed that 3.6 inches of snow had fallen. Other reports from west of Cheviot and south of Dent later that morning came in with 4.5 inches of accumulation.

Winter Storm in BUTLER, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

A spotter in Oxford recorded 6 inches of snow. The CoCoRaHS observer 4 miles east-southeast of Hamilton measured 5.3 inches of snow.

Winter Storm in LOGAN, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

A spotter in Lakeview reported 10 inches of snow. The cooperative observer north of Huntsville measured 7.2 inches.

Winter Storm in CLERMONT, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: CoCoRaHS

The CoCoRaHS observer 4 miles southwest of Bethel measured 4.8 inches of snow.

Winter Storm in WARREN, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: COOP Observer

The observer in Kings Mills measured 5.6 inches of snow.

Winter Storm in CLINTON, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Official NWS Observations

The NWS office measured 3.6 inches of snow and sleet.

Winter Storm in PREBLE, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: CoCoRaHS

The observer north of Eaton measured 6.3 inches of snow.

Winter Storm in MONTGOMERY, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: CoCoRaHS

The observer south of New Lebanon measured 9.1 inches of snow. Other reports in the eastern section of the county were 8.2 inches in Union, 7.5 inches in Union, and 6.5 inches at the Dayton airport and in West Carrollton.

Winter Storm in GREENE, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Public

A report of 6 inches of snow came from Xenia, while the CoCoRaHS observer south of Beavercreek measured 5.6 inches of accumulation. Areas in the east were significantly less due to freezing rain and sleet mixing in.

Winter Storm in DARKE, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Social Media

A report of 10 inches of snow came from Greenville. The CoCoRaHS observer northwest of Bradford measured 6.8 inches.

Winter Storm in MIAMI, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

The spotter in Piqua measured 8.4 inches of snow, while another north of troy measured 8.3 inches.

Winter Storm in CLARK, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: Trained Spotter

The spotter in Donnelsville measured 5.2 inches of snow. Significantly more snow was estimated to have fallen in the northwest 1/4 of the county, while areas to the east had sleet and freezing rain reduce overall snow depth.

Winter Storm in CHAMPAIGN, OHIO
From 15-FEB-21 02:30:00 to 16-FEB-21 01:30:00 (EST-5)
Reported by: COOP Observer

The observer northeast of St. Paris measured 9.3 inches of snow.