Waterloo is Approaching Heat Records

It’s been a hot and extremely dry first half of June in Waterloo. In the first 15 days of the month only a TRACE of rain has been reported (June 8) and 10 of the first 15 days have featured high temperatures reaching at least 90*.

That is currently the second most all-time at/above 89* days in June. The only year with more 89+* days is 1988 with 15 --- Waterloo may pass that number by the end of the week. The average is only four days in June reaching that threshold.

The high temperature of 89* on Tuesday, June 15^th ended an eight-day streak of 90*+ days in Waterloo.

However, the city has had 13 straight days reaching at least 89* or higher, which is tied for the eighth-longest streak of consecutive days at that temperature threshold. It’s the longest streak of at least 89* days since 1988.

The average streak of consecutive days at/over 89* in Waterloo is 6.2, according to the Iowa Environmental Mesonet.

The all-time record is 21 consecutive days at/over 89*, which ran June 28 – July 18, 1921.

The average high temperature for the entire month of June in the Waterloo area is 80.6* (1951-present) Through the first 15 days of June 2020, the average high temperature is 90.5*.

So far this year, Waterloo has seen a total of 14 days reach at least 89*. The average number of days at that temperature is 25.5 days/year. The all-time record is over 60 days at/above 89*, set in 1936.