Fairfax Weather in March
Average highs run from 44°F on March 1 to 59°F on March 31, and lows from 23°F to 35°F.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 52°F
- Average low
- 29°F
- Snowfall
- 3.6 in
- Record high
- 95°FMar 21, 2026
- Record low
- -17°FMar 12, 1998
- Chance of a freeze
- 100%
- Daylight
- 11 h 18 min to 12 h 38 min
- Cloud cover
- 64%
- Humidity
- 73%
- Dew point
- 31°F
- Wind
- 12.3 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 |
|---|---|---|---|---|---|---|
| Mar 1 | 44°F | 23°F | 79°F 1972 | -11°F 1962 | 13% | |
| Mar 2 | 44°F | 24°F | 81°F 1992 | -10°F 1913 | 13% | |
| Mar 3 | 45°F | 24°F | 81°F 1992 | -7°F 2014 | 13% | |
| Mar 4 | 46°F | 25°F | 81°F 1921 | -9°F 1960 | 12% | |
| Mar 5 | 46°F | 25°F | 83°F 2009 | -12°F 1960 | 12% | |
| Mar 6 | 47°F | 25°F | 80°F 2017 | -3°F 1960 | 12% | |
| Mar 7 | 47°F | 26°F | 78°F 2000 | -7°F 1943 | 12% | |
| Mar 8 | 48°F | 26°F | 80°F 1977 | -3°F 1967 | 11% | |
| Mar 9 | 48°F | 27°F | 80°F 2026 | 0°F 1995 | 11% | |
| Mar 10 | 49°F | 27°F | 82°F 2025 | -3°F 1948 | 11% | |
| Mar 11 | 50°F | 27°F | 85°F 1972 | -13°F 1948 | 11% | |
| Mar 12 | 50°F | 28°F | 84°F 1916 | -17°F 1998 | 10% | |
| Mar 13 | 51°F | 28°F | 82°F 2012 | -15°F 1998 | 10% | |
| Mar 14 | 51°F | 29°F | 84°F 2012 | 3°F 1975 | 10% | |
| Mar 15 | 52°F | 29°F | 81°F 1914 | 4°F 1949 | 10% | |
| Mar 16 | 52°F | 29°F | 87°F 2015 | 8°F 2026 | 10% | |
| Mar 17 | 53°F | 30°F | 83°F 2009 | 10°F 1960 | 9% | |
| Mar 18 | 53°F | 30°F | 88°F 1921 | 2°F 1923 | 9% | |
| Mar 19 | 54°F | 31°F | 89°F 2017 | 5°F 1965 | 9% | |
| Mar 20 | 54°F | 31°F | 89°F 2026 | 2°F 1943 | 9% | |
| Mar 21 | 55°F | 31°F | 95°F 2026 | 6°F 1951 | 8% | |
| Mar 22 | 55°F | 32°F | 90°F 1928 | 7°F 2002 | 8% | |
| Mar 23 | 56°F | 32°F | 89°F 1928 | 10°F 1965 | 8% | |
| Mar 24 | 56°F | 32°F | 85°F 1967 | 5°F 1965 | 8% | |
| Mar 25 | 57°F | 33°F | 92°F 2026 | 9°F 1965 | 7% | |
| Mar 26 | 57°F | 33°F | 87°F 2026 | 5°F 1964 | 7% | |
| Mar 27 | 58°F | 33°F | 88°F 1991 | 10°F 1926 | 7% | |
| Mar 28 | 58°F | 34°F | 83°F 1967 | 11°F 1970 | 7% | |
| Mar 29 | 58°F | 34°F | 85°F 1943 | 14°F 1969 | 6% | |
| Mar 30 | 59°F | 34°F | 92°F 2026 | 12°F 1964 | 6% | |
| Mar 31 | 59°F | 35°F | 88°F 1946 | 12°F 1923 | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- March 1
- sunrise 6:55 AM, sunset 6:13 PM
- March 31
- sunrise 7:07 AM, sunset 7:45 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014945 (Tarkio), public domain. Records: NOAA GHCN-Daily, station USW00094957, 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.