Rockville Weather in March
Average highs run from 40°F on March 1 to 50°F on March 31, and lows from 24°F to 32°F. Normal precipitation for the month is 4.38 in over about 10 wet days.
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
- 45°F
- Average low
- 28°F
- Precipitation
- 4.38 in
- Snowfall
- 6.3 in
- Record high
- 89°FMar 31, 1998
- Record low
- -8°FMar 4, 1950
- Chance of a freeze
- 100%
- Daylight
- 11 h 15 min to 12 h 40 min
- Cloud cover
- 64%
- Humidity
- 84%
- Dew point
- 29°F
- Wind
- 6.3 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 | 40°F | 24°F | 61°F 2017 | 0°F 2014 | 33% | 12% |
| Mar 2 | 41°F | 24°F | 64°F 2004 | 4°F 1962 | 33% | 11% |
| Mar 3 | 41°F | 24°F | 67°F 2024 | -2°F 1950 | 33% | 11% |
| Mar 4 | 41°F | 25°F | 67°F 1974 | -8°F 1950 | 33% | 11% |
| Mar 5 | 41°F | 25°F | 63°F 1974 | 7°F 2017 | 33% | 11% |
| Mar 6 | 42°F | 25°F | 65°F 2022 | 3°F 2007 | 33% | 10% |
| Mar 7 | 42°F | 25°F | 69°F 1974 | -6°F 2003 | 33% | 10% |
| Mar 8 | 42°F | 26°F | 69°F 1987 | 4°F 1986 | 33% | 10% |
| Mar 9 | 43°F | 26°F | 81°F 2016 | 4°F 2007 | 33% | 10% |
| Mar 10 | 43°F | 26°F | 79°F 2026 | 1°F 1984 | 33% | 9% |
| Mar 11 | 43°F | 26°F | 75°F 1977 | 3°F 1996 | 33% | 9% |
| Mar 12 | 43°F | 27°F | 74°F 2012 | 6°F 1984 | 33% | 9% |
| Mar 13 | 44°F | 27°F | 79°F 1990 | 11°F 1998 | 33% | 9% |
| Mar 14 | 44°F | 27°F | 72°F 2024 | 14°F 1993 | 33% | 8% |
| Mar 15 | 44°F | 27°F | 73°F 1990 | 6°F 1993 | 33% | 8% |
| Mar 16 | 45°F | 28°F | 79°F 1990 | 9°F 1992 | 33% | 8% |
| Mar 17 | 45°F | 28°F | 70°F 1990 | 11°F 1961 | 33% | 8% |
| Mar 18 | 45°F | 28°F | 76°F 2022 | 1°F 1956 | 33% | 7% |
| Mar 19 | 46°F | 29°F | 79°F 2012 | -6°F 1967 | 33% | 7% |
| Mar 20 | 46°F | 29°F | 79°F 2012 | 4°F 1949 | 33% | 7% |
| Mar 21 | 46°F | 29°F | 75°F 2012 | 10°F 1986 | 33% | 7% |
| Mar 22 | 47°F | 29°F | 83°F 2012 | 13°F 1956 | 34% | 7% |
| Mar 23 | 47°F | 30°F | 75°F 2012 | 14°F 2017 | 34% | 6% |
| Mar 24 | 47°F | 30°F | 74°F 1988 | 15°F 2014 | 34% | 6% |
| Mar 25 | 48°F | 30°F | 76°F 1964 | 9°F 1956 | 34% | 6% |
| Mar 26 | 48°F | 31°F | 77°F 2021 | 6°F 1960 | 34% | 6% |
| Mar 27 | 49°F | 31°F | 82°F 1998 | 15°F 1951 | 34% | 5% |
| Mar 28 | 49°F | 31°F | 84°F 1998 | 17°F 1956 | 34% | 5% |
| Mar 29 | 49°F | 32°F | 80°F 1981 | 10°F 1959 | 35% | 5% |
| Mar 30 | 50°F | 32°F | 87°F 1977 | 15°F 1970 | 35% | 5% |
| Mar 31 | 50°F | 32°F | 89°F 1998 | 17°F 1970 | 35% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 6:25 AM, sunset 5:40 PM
- March 31
- sunrise 6:34 AM, sunset 7:14 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00068138 (Storrs), public domain. Records: NOAA GHCN-Daily, station USW00014740, 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.