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Climate Room

Weather Now | Forecast Lab

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Daily climate summary


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Period of record: 1871-present Data from ACIS

Accumulated precipitation

Observed rainfall map
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This data is from advanced analyses of radar, observations, and model data. Actual values measured on the ground at any location may differ slightly.
Location 1h 6h 12h 24h 48h 72h

Warm and cool day counts

WASHINGTON, DC (DCA)
Highs at or above 90° in 2026
days
Through May 18
Cumulative
90°+ day tick
1991-2020 avg
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Cumulative days
1991-2020 avg
Daily high
Period of record: 1871-present Data from ACIS

Data by month


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Period of record: 1871-present Data from ACIS

Annual temperature summary

Washington, DC
Observed temperatures in 2026
avg high
avg low
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Period of record: 1871-present Data from ACIS

Annual precipitation summary

Washington, DC
Precipitation in 2026
Deficit through May 7
Observed
Normal
Deficit
Surplus
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Observed
Cumulative
Normal cumulative
Departure
Period of record: 1871-present Data from ACIS

Winter season breakdown


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Period of record: 1888-89-present Data from ACIS

12-month temperature

Washington, DC
Last year of temperatures
12-month window vs. 1991-2020 normals
-
12-month average
Above normal
Below normal

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Observed avg
Normal
Departure
Period of record: 1871-present Data from ACIS

12-month precipitation

Washington, DC
Last year of precipitation
12-month window compared to 1991-2020 norm
-
12-month total
Average
Below normal
Above normal

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Observed
Normal
Departure
% normal
Period of record: 1871-present Data from ACIS

U.S. Drought Monitor

U.S. Drought Monitor – Washington region

Degree days


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Period of record: 1871-present Data from ACIS

CO₂ concentration