Climate averages 1991–2020
Dorchester weather
in February.
A cold, moderately wet month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a cold month in Dorchester: daytime highs average 3.0°C and nights cool to about -5.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 84 mm of rain on roughly 9 days, which makes February a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 32 min on an average February day.
The nearest other city in this atlas is Boston (7 km away). In February its highs average 2.8°C, about as warm as Dorchester, with 84 mm of rain.
Among the 498 cities listed in the United States, Dorchester ranks 418th of 498 for the warmest February highs and joint 342nd of 498 for the driest February (rainfall, lowest first). The mean February high of those 498 cities is 11.1°C; Dorchester is 8.2°C cooler than that mean.
From February to March, average highs rise by 3.7°C to 6.7°C, and monthly rainfall rises from 84 mm to 116 mm.
The annual picture
February in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Dorchester climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.7°C-6.3°C | -6.3°C | 94 | 10.0 | 9.59 h |
| February, selected | 3.0°C-5.5°C | -5.5°C | 84 | 8.9 | 10.511 h |
| March | 6.7°C-1.9°C | -1.9°C | 116 | 11.1 | 11.912 h |
| April | 13.0°C3.8°C | 3.8°C | 100 | 11.0 | 13.313 h |
| May | 18.5°C9.5°C | 9.5°C | 81 | 10.6 | 14.615 h |
| June | 23.8°C15.0°C | 15.0°C | 87 | 10.1 | 15.215 h |
| July | 27.2°C18.6°C | 18.6°C | 73 | 9.6 | 14.915 h |
| August | 26.3°C18.1°C | 18.1°C | 85 | 9.1 | 13.914 h |
| September | 22.2°C14.4°C | 14.4°C | 88 | 8.1 | 12.513 h |
| October | 15.9°C8.5°C | 8.5°C | 108 | 9.8 | 11.111 h |
| November | 9.9°C2.8°C | 2.8°C | 95 | 9.6 | 9.810 h |
| December | 4.6°C-2.4°C | -2.4°C | 115 | 10.8 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
February in nearby cities
- Boston in FebruaryUnited States · 7 kmHigh 2.8°C · Low -6.3°C · 84 mm rain
- Quincy in FebruaryUnited States · 8 kmHigh 3.2°C · Low -4.6°C · 84 mm rain
- Newton in FebruaryUnited States · 12 kmHigh 3.1°C · Low -5.8°C · 78 mm rain
- Lynn in FebruaryUnited States · 21 kmHigh 2.7°C · Low -4.8°C · 84 mm rain
- Brockton in FebruaryUnited States · 24 kmHigh 3.4°C · Low -4.7°C · 81 mm rain
- Lowell in FebruaryUnited States · 42 kmHigh 2.7°C · Low -6.6°C · 76 mm rain
- Lawrence (Massachusetts), United States in FebruaryUnited States · 46 kmHigh 2.6°C · Low -6.7°C · 76 mm rain
- Pawtucket in FebruaryUnited States · 53 kmHigh 3.9°C · Low -5.0°C · 78 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dorchester) is explained once on the Dorchester year overview and on the Sources, method and limits page.
Boston and Quincy lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.