Chevy Chase weather by month
What a typical year looks like in Chevy Chase, Maryland: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Washington Reagan National Airport, 16 km from Chevy Chase; records cover 1872–2026.
The year at a glance
- Precipitation a year
- 41.8 in1062 mm
- Snow a year
- 14 in35 cm
- Last spring freeze
- Mar 24
- First fall freeze
- Nov 16
- Heating degree days
- 3,770
- Cooling degree days
- 1,737
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 16°−9° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Chevy Chase in January
Highs average 45°7° and lows 30°−1°, with 2.9 in73 mm of precipitation and 5 in12 cm of snow in a typical January.
- Record high
- 80°27° (2024)
- Record low
- −14°−26° (1881)
- Heating degree days
- 854
- Cooling degree days
- 0
Chevy Chase in February
Highs average 48°9° and lows 32°0°, with 2.6 in67 mm of precipitation and 5 in13 cm of snow in a typical February.
- Record high
- 84°29° (1930)
- Record low
- −15°−26° (1899)
- Heating degree days
- 699
- Cooling degree days
- 0
Chevy Chase in March
Highs average 57°14° and lows 39°4°, with 3.5 in89 mm of precipitation and 2 in5.1 cm of snow in a typical March.
- Record high
- 93°34° (1907)
- Record low
- 4°−16° (1873)
- Heating degree days
- 544
- Cooling degree days
- 3
Chevy Chase in April
Highs average 68°20° and lows 48°9°, with 3.2 in82 mm of precipitation in a typical April.
- Record high
- 95°35° (1915)
- Record low
- 15°−9° (1923)
- Heating degree days
- 236
- Cooling degree days
- 32
Chevy Chase in May
Highs average 77°25° and lows 58°14°, with 3.9 in100 mm of precipitation in a typical May.
- Record high
- 99°37° (1991)
- Record low
- 33°1° (1906)
- Heating degree days
- 63
- Cooling degree days
- 132
Chevy Chase in June
Highs average 85°30° and lows 68°20°, with 4.2 in107 mm of precipitation in a typical June.
- Record high
- 104°40° (2012)
- Record low
- 43°6° (1897)
- Heating degree days
- 4
- Cooling degree days
- 343
Chevy Chase in July
Highs average 90°32° and lows 72°22°, with 4.3 in110 mm of precipitation in a typical July.
- Record high
- 106°41° (1930)
- Record low
- 52°11° (1895)
- Heating degree days
- 0
- Cooling degree days
- 496
Chevy Chase in August
Highs average 88°31° and lows 71°22°, with 3.3 in83 mm of precipitation in a typical August.
- Record high
- 106°41° (1918)
- Record low
- 49°9° (1890)
- Heating degree days
- 0
- Cooling degree days
- 446
Chevy Chase in September
Highs average 81°27° and lows 64°18°, with 3.9 in100 mm of precipitation in a typical September.
- Record high
- 104°40° (1881)
- Record low
- 36°2° (1904)
- Heating degree days
- 16
- Cooling degree days
- 238
Chevy Chase in OctoberThis month
Highs average 69°21° and lows 52°11°, with 3.7 in93 mm of precipitation in a typical October.
- Record high
- 98°37° (2019)
- Record low
- 26°−3° (1873)
- Heating degree days
- 175
- Cooling degree days
- 45
Chevy Chase in November
Highs average 58°15° and lows 42°5°, with 2.9 in74 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 86°30° (1974)
- Record low
- 11°−12° (1929)
- Heating degree days
- 455
- Cooling degree days
- 2
Chevy Chase in December
Highs average 49°9° and lows 35°1°, with 3.4 in87 mm of precipitation and 1.7 in4.3 cm of snow in a typical December.
- Record high
- 79°26° (1998)
- Record low
- −13°−25° (1880)
- Heating degree days
- 724
- Cooling degree days
- 0