Welcome the sweet, sweet – uncommonly comfortable late July weather

Courtesy of our friends at the National Weather Service forecast office in Sterling, Va, consider how hot it has been at this time the last three years:

HIGH TEMPS:

          BWI         DCA
7/23/11   102         102
7/24/10   101         101
7/24/11    98          97
7/23/10    98          98
7/24/12    91          93

In light of that punishing heat, I think both what’s here (low 80s this afternoon) and coming our way are well-deserved.

Check out the high temperatures for Thursday projected by the GFS model:


GFS model forecast highs for Thursday (WeatherBell.com)

Now look at the delightful dew points Thursday morning forecast by the high resolution NAM model:


High resolution NAM model dew point forecast for Thursday morning (WeatherBell.com)

As a refresher, dew points are the best available indicator of humidity.  Dew points from 65-70 are borderline uncomfortable, 70-75 are pretty gross, and when they’re over 75 – see late last week – they’re downright oppressive.  By comparison, tomorrow’s 50s are literally a breath of fresh air.

The best part of the current weather pattern: there’s no extreme heat on the radar.

As the NWS in Sterling puts it:

ONE WK TO GO IN JUL AND NO 90+ TEMPS IN SIGHT.
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

32
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

Fri.

sunny_clear
71° /91°

Sat.

partlycloudyday
70° /91°

Sun.

sunny_clear
72° /93°

Mon.

partlycloudyday
74° /95°

Tue.

thunderstorms
74° /95°

Wed.

thunderstorms
74° /94°
Drop 30%
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Jason Samenow · July 24, 2013