National Weather Service United States Department of Commerce

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

The first two weeks were unusually cool, coming in three waves as a series of Canadian high pressure centers dropped through the region. The coldest morning occurred on the 9th with sunrise temperatures mostly in the 25 to 30 degree range. The 11th was particularly chilly as well with lows in the 30s and highs only in the 50s.

Though there was scattered severe weather on six days of the month, it mostly just resulted in isolated tree damage.  There was one report of severe hail during the month when 1" hailstones were seen in Scott County, Kentucky.

  Average Temperature Departure from Normal Precipitation Departure from Normal
Bowling Green 65.1° -1.3° 3.22" -2.22"
Frankfort 62.9° -1.0° 6.25" +1.54"
Lexington 61.4° -2.8° 5.12" +0.04"
Louisville Bowman 64.1° -2.2° 4.83" -0.15"
Louisville Ali 65.4° -1.7° 5.93" +0.82"

 

Records

7th: Low of 33° at Lexington
8th: Cold high of 55° at Frankfort
9th: Low of 34° at Bowling Green, low of 28° at Frankfort, low of 29° at Lexington
11th: Low of 35° at Lexington, cold high of 51° at Lexington
12th: Low of 35° at Lexington
16th: Rainfall of 1.19" at Frankfort
24th: Warm low of 71° at Frankfort

 

Horses enjoying pleasant May weather on the 8th in Louisville.