D.C.’s on incredible 10 week streak of (nearly) rain-free weekends

Beautiful sunshine over the Potomac, Sunday, May 25 (Brian Allen via Flickr)

Beautiful sunshine over the Potomac, Sunday, May 25 (Brian Allen via Flickr)

We’re playing a hot hand when it comes to weekend weather in Washington, D.C.  Since the beginning of April, 19 out of the last 20 weekend days (20 of 21 if you include Memorial Day) have had no measurable rain during the daylight hours.

A grand total of 0.4″ of rain has fallen at Reagan National Airport over weekend days in the last 10 weeks: 0.24″ of it falling last night, after 10 p.m. (The last weekend in March was a complete washout, with over 1 inch of rain each day).

The only “wet” weekend day occurred Saturday, May 10 – when 0.16″ of rain fell in the afternoon.

Not only have weekends largely been rain-free, but the temperatures have been extremely comfortable.  Every single weekend day in this dry stretch has had highs in the 60s (5 days), 70s (8 days), or 80s (7 days) – with no extreme heat or unseasonably chilly weather.  Overnight lows have also been pleasantly moderate – mostly in the 50s (10 nights) and 60s (6 nights); the few chilly nights in the 30s (1 night) and 40s (3 nights) occurred in April.

The amazing part of all of this is that this period – overall  - has been much wetter than average. Through a stroke of luck, almost all of our rain has fallen during the work week.  Consider May’s total rainfall was 4.96″, 0.97″ above average and  April’s total rain was 6.47″, 3.41″ above normal.

We’ve logged 0.67″ of rain so far this June – slightly (0.33″) below average.  We should make up for that deficit during the upcoming work week – with at least a 30 percent chance of storms Monday through Friday.

The forecast for next weekend? You guessed it: dry.

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Data:

Date – Hi/Lo – Rain

April 5 – 60/46 – 0
April 6 – 63/39 – 0
April 12 – 77/57 – 0
April 13 – 85/55 – 0
April 19 – 71/47 – 0
April 20 – 64/48 – 0
April 26 – 78/50 – 0
April 27 – 70/50 – 0
May 3 – 74/57 – trace
May 4 – 81/55 – 0
May 10 – 78/67 – 0.16″
May 11 – 81/62 – 0
May 17 – 69/52 – 0
May 18 – 69/53 – 0
May 24 – 78/57 – 0
May 25 – 84/60 – 0
May 31 – 81/61 – 0
June 1 – 77/59 – 0
June 7 – 86/64 – 0
June 8 – 85/67 – 0.24″ (after 10 p.m.)

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