The Summer 2021 review shows a rather warm and wet season, but extremes were rare. Record heat did not occur, and severe weather- a typical event during the summer- was all but missing for the region.
The rankings are accurate through the time of posting, and that data largely comes from the Wilmington National Weather Service. Other comparative data is at the Summer Season Records page.
1991-2020 Summer Normals
Average High: 83.9
Average Low: 63.6
Mean: 73.8
Precipitation: 12.74″
June-August
Average High: 84.9 Tied for 23rd Warmest
Average Low: 65.8 Tied for 6th Warmest
Mean: 74.4 12th Warmest
Precipitation: 14.38″ 24th Wettest
# of 70 or Below Highs: 1 Tied for 2nd Fewest
# of 50 or Below Lows: 1 Tied for 2nd Fewest
# of 90 or Above Highs: 19 Tied for 21st Most
# of 100 or Above Highs: 0 Tied for 1st Fewest
# of 70 or Above Lows: 29 Tied for 4th Most
# of Measurable Precipitation Days: 39 Tied for 7th Most
Average High By Month
June 2021: 84.3 17th Warmest
July 2021: 84.4 Tied for 33rd Coldest
August 2021: 86.1 Tied for 18th Warmest
Average Low By Month
June 2021: 64.1 Tied for 10th Warmest
July 2021: 66.1 Tied for 26th Warmest
August 2021: 67.3 Tied for 7th Warmest
Mean By Month
June 2021: 74.2 Tied for 12th Warmest
July 2021: 75.2 Tied for 35th Warmest
August 2021: 76.7 10th Warmest
Precipitation By Month
June 2021: 2.58″ 35th Driest
July 2021: 4.64″ Tied for 50th Wettest
August 2021: 7.16″ Tied for 5th Wettest
Summer 2021 got both progressively warmer and wetter as it went.
Maximum High By Month
June 2021: 96 on June 29th
July 2021: 92 on July 5th, 6th and 7th
August 2021: 92 on August 12th and 24th
Minimum High By Month
June 2021: 68 on June 2nd
July 2021: 75 on July 10th
August 2021: 77 on August 15th
Maximum Low By Month
June 2021: 73 on June 20th, 26th and 27th
July 2021: 72 on July 12th, 13th and 25th
August 2021: 72 on August 11th, 12th and 29th
Maximum Low Records
-The 73 on June 20th tied the record for the date, last set in 1931.
-The 73 on June 26th tied the record for the date, last set in 1998.
Minimum Low By Month
June 2021: 50 on June 23rd
July 2021: 56 on July 3rd
August 2021: 58 on August 2nd
Highest Daily Precipitation By Month
June 2021: 0.60″ on June 7th
July 2021: 1.26″ on July 1st
August 2021: 1.55″ on August 16th
Precipitation Records
-The 1.55″ on August 16th set a new record for the date, breaking the 1.26″ set in 1934.
Measurable Precipitation Days By Month
June 2021: 12
July 2021: 10
August 2021: 17
Severe weather was unusually limited over the summer. Columbus had only 3 severe thunderstorm warnings over the entire 3 month period- on July 29th, August 11th and August 12th. July 29th brought quarter-sized hail and strong winds to the Downtown area, while the August dates brought strong winds up to 60MPH.