Potomac Weather in April
Average highs run from 62°F on April 1 to 72°F on April 30, and lows from 38°F to 49°F. Normal precipitation for the month is 3.53 in over about 11 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 68°F
- Average low
- 44°F
- Precipitation
- 3.53 in
- Record high
- 100°FApr 27, 1915
- Record low
- 18°FApr 1, 1969
- Chance of a freeze
- 78%
- Days of 90°F or more
- 0.6
- Daylight
- 12 h 40 min to 13 h 49 min
- Cloud cover
- 63%
- Humidity
- 77%
- Dew point
- 46°F
- Wind
- 10.1 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Apr 1 | 62°F | 38°F | 86°F 1978 | 18°F 1969 | 38% | |
| Apr 2 | 62°F | 39°F | 86°F 1963 | 22°F 1919 | 37% | |
| Apr 3 | 63°F | 39°F | 87°F 1963 | 24°F 1919 | 37% | |
| Apr 4 | 63°F | 39°F | 86°F 1963 | 24°F 1965 | 37% | |
| Apr 5 | 64°F | 40°F | 86°F 1985 | 24°F 1918 | 37% | |
| Apr 6 | 64°F | 40°F | 82°F 2005 | 22°F 1914 | 37% | |
| Apr 7 | 64°F | 40°F | 85°F 1991 | 21°F 1982 | 37% | |
| Apr 8 | 65°F | 41°F | 88°F 1959 | 24°F 1972 | 37% | |
| Apr 9 | 65°F | 41°F | 88°F 1959 | 19°F 1982 | 37% | |
| Apr 10 | 66°F | 42°F | 86°F 1959 | 21°F 1985 | 37% | |
| Apr 11 | 66°F | 42°F | 88°F 1977 | 22°F 1909 | 37% | |
| Apr 12 | 67°F | 42°F | 90°F 1977 | 25°F 1967 | 37% | |
| Apr 13 | 67°F | 43°F | 89°F 1977 | 25°F 1976 | 37% | |
| Apr 14 | 67°F | 43°F | 88°F 1977 | 21°F 1950 | 37% | |
| Apr 15 | 68°F | 43°F | 86°F 1960 | 23°F 1920 | 37% | |
| Apr 16 | 68°F | 44°F | 90°F 2002 | 26°F 1981 | 37% | |
| Apr 17 | 69°F | 44°F | 93°F 1976 | 23°F 1980 | 37% | |
| Apr 18 | 69°F | 45°F | 95°F 1976 | 28°F 1980 | 37% | 0% |
| Apr 19 | 69°F | 45°F | 93°F 1976 | 29°F 1979 | 37% | 0% |
| Apr 20 | 70°F | 45°F | 92°F 1976 | 27°F 1979 | 37% | 0% |
| Apr 21 | 70°F | 46°F | 93°F 1985 | 28°F 1981 | 37% | 0% |
| Apr 22 | 70°F | 46°F | 95°F 1985 | 28°F 1981 | 37% | 0% |
| Apr 23 | 71°F | 46°F | 91°F 1960 | 29°F 1978 | 37% | 0% |
| Apr 24 | 71°F | 47°F | 90°F 1960 | 31°F 1916 | 37% | 0% |
| Apr 25 | 71°F | 47°F | 94°F 1915 | 26°F 1920 | 37% | 0% |
| Apr 26 | 71°F | 48°F | 98°F 1915 | 30°F 1920 | 37% | 0% |
| Apr 27 | 72°F | 48°F | 100°F 1915 | 28°F 1971 | 37% | 0% |
| Apr 28 | 72°F | 48°F | 88°F 1915 | 32°F 1972 | 37% | 0% |
| Apr 29 | 72°F | 49°F | 91°F 1974 | 31°F 1977 | 37% | 0% |
| Apr 30 | 72°F | 49°F | 92°F 1974 | 30°F 1971 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- April 1
- sunrise 6:53 AM, sunset 7:33 PM
- April 30
- sunrise 6:12 AM, sunset 8:01 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00182325 (Dalecarlia Rsvr), public domain. Records: NOAA GHCN-Daily, station USC00187705, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.