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| An April day in suburban Washington, D.C. |
There is a significant upward trend in DC’s average daily temperatures in April. Average daily high/low temperatures in the nation’s capital range from 62°/43° on April 1 to 73°/53° by April 30.
Some may wonder how common April 90-degree heat is in the DMV (DC, Maryland and Virginia). Such heat is rare in the nation’s capital outside of June, July or August. In fact, high temperatures of 90° are the “average” high temperature in Washington, D.C. for a three-week period starting July 6. However, April has seen more periods of unusual warmth than unusual cold in recent decades. Five of DC’s 10 warmest April’s have occurred just since 2010.
April is a changeable weather month that is prone to periods of summer-like warmth as the month wears on. While not “average” on a daily basis until mid-summer, occasional 90-degree warmth can occur in April. The nation’s capital has averaged one 90-degree April day roughly every three years over the last 30 years. However, none have occurred since 2017. DC has averaged roughly the same number of April days that low temperatures were at or below freezing over the same time period.
The average first 90-degree day of the year in the nation’s capital is on or around May 18. The earliest first 90-degee day of the year in Washington, D.C. was on March 22, 1907, while the latest first 90-degree day was on July 12, 1979.
NOAA’s Climate Prediction Center is expecting a significant warm-up in the DMV starting with highs in the 80s to around 90° for much of next week. Highs in the 90s would be record-challenging warmth for April in the nation’s capital.
The last time the nation’s capital experienced 90-degree heat during the first half of April was April 10, 2013 (91°). However, the last time Washington, D.C. experienced more than one April day in the 90s was April 6-7, 2010.
Warmest April’s in Washington, D.C.
(Source: NOAA)
1. 63.8° (2017)
2. 62.4° (2019)
3. 62.1° (2023, 1981)
5. 62.0° (1994)
6. 61.7° (2025)
7. 61.6° (1985)
8. 61.2° (1960)
9. 60.9° (2010)
10. 60.6° (1941)
11. 60.5° (2024)


