Ashburn Weather in January
Average highs run from 60°F on January 1 to 60°F on January 31, and lows from 37°F to 37°F.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 59°F
- Average low
- 36°F
- Record high
- 84°FJan 7, 1946
- Record low
- -3°FJan 21, 1985
- Chance of a freeze
- 99%
- Daylight
- 10 h 07 min to 10 h 40 min
- Cloud cover
- 56%
- Humidity
- 82%
- Dew point
- 42°F
- Wind
- 9.2 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 60°F | 37°F | 79°F 2022 | 17°F 1984 | 0% | |
| Jan 2 | 60°F | 37°F | 79°F 1952 | 19°F 2018 | 0% | |
| Jan 3 | 59°F | 37°F | 78°F 1952 | 15°F 1979 | 0% | |
| Jan 4 | 59°F | 37°F | 80°F 1939 | 20°F 1904 | 0% | |
| Jan 5 | 59°F | 36°F | 79°F 1950 | 18°F 1999 | 0% | |
| Jan 6 | 59°F | 36°F | 80°F 1946 | 17°F 1969 | 0% | |
| Jan 7 | 59°F | 36°F | 84°F 1946 | 14°F 2014 | 0% | |
| Jan 8 | 59°F | 36°F | 82°F 1946 | 15°F 1970 | 0% | |
| Jan 9 | 59°F | 36°F | 84°F 1946 | 9°F 1970 | 0% | |
| Jan 10 | 59°F | 36°F | 80°F 1957 | 13°F 1970 | 0% | |
| Jan 11 | 59°F | 36°F | 84°F 1946 | 7°F 1982 | 0% | |
| Jan 12 | 59°F | 36°F | 83°F 1949 | 16°F 1981 | 0% | |
| Jan 13 | 59°F | 36°F | 78°F 1950 | 12°F 1981 | 0% | |
| Jan 14 | 59°F | 36°F | 77°F 1960 | 13°F 2011 | 0% | |
| Jan 15 | 59°F | 36°F | 80°F 1950 | 15°F 2011 | 0% | |
| Jan 16 | 59°F | 36°F | 80°F 1950 | 16°F 1972 | 0% | |
| Jan 17 | 59°F | 36°F | 80°F 1950 | 11°F 1977 | 0% | |
| Jan 18 | 59°F | 36°F | 78°F 1937 | 15°F 1976 | 0% | |
| Jan 19 | 59°F | 36°F | 78°F 1906 | 8°F 1977 | 0% | |
| Jan 20 | 59°F | 36°F | 79°F 1906 | 14°F 1940 | 0% | |
| Jan 21 | 59°F | 36°F | 78°F 1951 | -3°F 1985 | 0% | |
| Jan 22 | 59°F | 36°F | 79°F 1937 | 12°F 2025 | 0% | |
| Jan 23 | 59°F | 36°F | 78°F 1937 | 16°F 1960 | 0% | |
| Jan 24 | 59°F | 36°F | 79°F 1937 | 13°F 2003 | 0% | |
| Jan 25 | 59°F | 36°F | 81°F 1950 | 20°F 1960 | 0% | |
| Jan 26 | 59°F | 37°F | 81°F 1950 | 12°F 1905 | 0% | |
| Jan 27 | 60°F | 37°F | 83°F 1950 | 12°F 1905 | 0% | |
| Jan 28 | 60°F | 37°F | 80°F 1950 | 14°F 1986 | 0% | |
| Jan 29 | 60°F | 37°F | 79°F 1975 | 18°F 1977 | 0% | |
| Jan 30 | 60°F | 37°F | 81°F 1947 | 5°F 1966 | 0% | |
| Jan 31 | 60°F | 37°F | 79°F 1950 | 14°F 1966 | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:35 AM, sunset 5:42 PM
- January 31
- sunrise 7:28 AM, sunset 6:08 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00090406 (Ashburn 3 Ene), public domain. Records: NOAA GHCN-Daily, station USC00092266, 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.