United States · 1991–2020 normal

Merrimac in
March.

Typical March weather in Merrimac: 13.2°C by day, -0.5°C at night, 83 mm of rain over 6.4 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high13.2°C
Typical low-0.5°C
Rain83 mm
Wet days6.4

Comfort score 27 this month (September leads the year at 77). Daylight is calculated as 11 h 50 from latitude 38.45°.

Event window

Frost-level nights in March

The measured night-time normal is -0.5°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4772739
NOAA station
USC00440860 · BOSTON 4 SE
Station distance
10.5 km from the place centre
Coverage
Good coverage · 17 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.