D.C. hits 90 for first time in 2014, a few days ahead of schedule

The 3 p.m. temperature at Reagan National Airport – D.C.’s official weather observing station – sprung to 90 degrees – the first occurrence this calendar year.

A few facts pertaining to our history of first 90-degree temperatures:

*  Since 1872, the average date of our first 90-degree reading is May 18 (including reporting locations in the District and at Reagan National); the earliest first 90 occurred March 22, 1907 and the latest first 90 was July 12, 1979.

* Since 2000, the average date of our first 90-degree reading  is May 16, the earliest occurring April 6, 2010 and latest June 24, 2003.

* Last year (2013), we hit 90 for the first time April 10.


2 p.m. temperature analysis shows the average temperature in the region around 89-90 degrees (WeatherBell.com)

Historically, Washington, D.C. averages 36 90+ days per calendar year.  How many 90+ days do we expect this year?  Stay tuned for our summer outlook coming later this month.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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Heat Tracker

31
90-degree days year-to-date
Yearly Average
36
Record Most
67 (1980,2010)
Record Fewest
7 (1886,1905)
Last Year
24

At a Glance

Thu.

thunderstorms
76° /94°
Drop 60%

Fri.

sunny_clear
73° /91°

Sat.

partlycloudyday
73° /91°

Sun.

partlycloudyday
72° /92°

Mon.

thunderstorms
73° /93°
Drop 20%

Tue.

thunderstorms
73° /94°
Drop 20%
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Jason Samenow · May 13, 2014