Local Weather Radar

Ohio · Montgomery County

Dayton Weather Radar

Live Doppler radar for Dayton, OH from the Cincinnati NEXRAD station (KILN), with hourly and 7-day forecasts. Keep the Dayton weather radar open on spring and summer storm evenings, including after dark. It shows where storms are, but warnings come from NWS Wilmington, so keep emergency alerts turned on.

Nearest radarKILN · 31 mi

How will Dayton's temperature change today?

When is sunset in Dayton?

What's the 7-day forecast for Dayton?

What should you know about Dayton's weather?

NWS office
Wilmington (ILN)
Climate
Hot-summer humid continental
Time zone
EST/EDT
Elevation
740 ft
Coordinates
39.76° N, 84.19° W
Nearest radar
KILN · Cincinnati NEXRAD · 31 mi
County
Montgomery County, OH
Yearly rain
41.3 in
Warmest month
July · 76°F average
Coldest month
January · 29.4°F average
Severe storm peak
May to Jul
Main radar risksTornadoesSevere thunderstormsFloodingIce stormsWinter storms

How much rain does Dayton get each month?

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High °F37.141.251.564.574.282.685.984.678.666.252.741.5
Low °F21.824.532.742.953.862.766.164.356.845.935.427.1
Rain (in)3.082.353.504.464.514.143.952.963.312.953.073.05
MonthHigh °FLow °FRain (in)
Jan37.121.83.08
Feb41.224.52.35
Mar51.532.73.50
Apr64.542.94.46
May74.253.84.51
Jun82.662.74.14
Jul85.966.13.95
Aug84.664.32.96
Sep78.656.83.31
Oct66.245.92.95
Nov52.735.43.07
Dec41.527.13.05

DAYTON INTL AP, OH US · 10 mi away · NOAA NCEI U.S. Climate Normals 1991 to 2020

Can the Dayton weather radar spot a tornado at night?

It can show signs of one, but the warning comes from NWS Wilmington. At 10:57 PM on May 27, 2019, when the Tornado Emergency was issued for the supercell near Trotwood, KILN cross sections showed reductions of correlation coefficient above 20,000 feet, suggesting a violent tornado. NWS Wilmington issued 37 tornado warnings during the outbreak, with touchdown lead times of 6 to 34 minutes. Lead time for the Dayton EF4 damage was 34 minutes.

How strong was the Memorial Day 2019 tornado in Dayton?

The Trotwood-Dayton tornado was rated EF4 with 170 mph winds, based on significant damage to multi-story apartments and debarked trees. It was on the ground from 10:41 PM to 11:13 PM over a 20.0 mile path. Another tornado in the Dayton area, rated EF3, was on the ground from 11:12 PM to 11:32 PM over 10.0 miles. With 19 tornadoes in just a few hours, it was the largest outbreak in the history of NWS Wilmington. The Storm Events entry for Montgomery County records 1 death and 166 injuries.

What happened in the 1974 Xenia tornado?

The F5 tornado touched down about 4:33 PM near Lower Bellbrook Road, flattened much of the Windsor Park and Arrowhead subdivisions minutes later and roared into central Xenia around 4:40 PM. It killed 34 people, the most of any tornado in the April 3 to 4, 1974 Super Outbreak. The Weather Service had issued a tornado warning for Montgomery and Greene counties around 4:10 PM, based on radar. Dr. Fujita and other experts later judged it the worst of all 148 Super Outbreak tornadoes.

How high did the Miami River get at Dayton in 1913?

It crested at 29.0 feet about 1 a.m. on March 26, 1913, about 8 feet higher than any other known flood there. The previous high mark was 21.3 feet, set in 1866. A City of Dayton history says the 1913 flood devastated the city. In 1914 Governor Cox signed the legislation creating the Miami Conservancy District, the first flood control and regional authority district in the United States.

How strong do windstorms get in Dayton?

Automated airport sensors at Dayton recorded an 82 mph gust during the June 29, 2012 derecho. On September 14, 2008, the remnants of Hurricane Ike brought a 69 mph gust and a 50 mph sustained wind to Dayton International Airport. The Blizzard of 1978 also produced a 69 mph gust at Dayton on January 26.

How much snow does Dayton get?

The 1991 to 2020 normal at Dayton International Airport is 25.0 inches a year. January brings the most with a normal of 8.3 inches. A typical year has 7.8 days with at least 1 inch of new snow. The Blizzard of 1978 left 12.9 inches of official snowfall in Dayton from January 25 to 27. In the February 13 to 14, 2007 storm, areas from Dayton to Columbus got several inches of sleet on top of snow before it turned to freezing rain.

When should you check the Dayton radar?

Severe storm season

May to July

About 66% of Montgomery County's 1996 to 2025 severe reports fall in these months. Before a summer concert at RiverScape MetroPark, check the loop for storms moving across the Miami Valley.

Freeze season

October 25 to April 16

These are the normal first fall and average last spring 32°F dates at Dayton (KDAY) in 1991 to 2020 tables from NWS Wilmington. Frost will not appear on the loop, so gardeners around Cox Arboretum watch the hourly low.

What else do people ask about the Dayton radar?

Which NWS office and radar cover Dayton?

NWS Wilmington (ILN) issues forecasts and warnings for Dayton. The nearest NEXRAD radar is KILN, about 31 miles from the city center.

How often does the radar on this page update?

The radar loop on this page updates every 5 minutes.

Is this page an official warning service?

No. It shows radar and forecasts only. For warnings, follow NWS Wilmington and local emergency alerts.

Quick facts
  • Radar: KILN (Cincinnati NEXRAD), a new frame every 5 minutes
  • Forecasts and warnings: NWS Wilmington (ILN)
  • Severe storms peak from May to July (NOAA Storm Events, 1996 to 2025)
  • Local time: EST/EDT
  • Radar: KILN, a new frame every 5 minutes
  • Warnings: NWS Wilmington (ILN)
  • Severe storms: May to July
  • Local time: EST/EDT

Where does this data come from?

By LOCAL WEATHER RADAR DEV TEAM, Seattle · Published · Updated · How we source data