Dorchester weather in November
In November, Dorchester sees average daytime highs of 50°F and overnight lows near 38°F, with 3.7 in of precipitation across 9.6 wet days and about 9.6 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.
Highs ease over the month, from about 55°F in the first days to 47°F by the end. The sky is clear or mostly clear about 35% of the time in November, and the air most often feels dry.
Daylight stretches from about 10 h 06 min at the start of November to 9 h 12 min by month's end. Set against the rest of the year, November is Dorchester's 6th-clearest and 5th-windiest month. For the whole year in context, see Dorchester's year-round climate.
- Daytime high
- 50°
- 8th warmest
- Overnight low
- 38°
- 5th coldest
- Precipitation
- 3.7 in
- 9.6 wet days
- Daylight
- 9 h 36 min
- 6:43 AM – 4:16 PM
- Cloud cover
- 58%
- 6th clearest
- Wind
- 10 mph
- 5th windiest
- Solar energy
- 2.03 kWh/m²
- Travel score
- 2.4
- out of 10
Dorchester is neighborhood in Boston, Massachusetts.
- Founded
- 1630
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in November
Highs ease over the month, from about 55°F in the first days to 47°F by the end.
A typical November day in Dorchester reaches about 50°F in the afternoon and slips back to 38°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 61°F. Set against its neighbours, November runs about 10°F cooler than October and about 9°F warmer than December.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 55 | 55 | 55 | 54 | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 46 | 46 |
| Avg low (°F) | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 34 | 34 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 55 | 43 |
| 2 | 55 | 42 |
| 3 | 55 | 42 |
| 4 | 54 | 42 |
| 5 | 54 | 41 |
| 6 | 54 | 41 |
| 7 | 53 | 40 |
| 8 | 53 | 40 |
| 9 | 53 | 40 |
| 10 | 52 | 40 |
| 11 | 52 | 39 |
| 12 | 51 | 39 |
| 13 | 51 | 38 |
| 14 | 51 | 38 |
| 15 | 50 | 38 |
| 16 | 50 | 38 |
| 17 | 50 | 37 |
| 18 | 49 | 37 |
| 19 | 49 | 37 |
| 20 | 49 | 37 |
| 21 | 49 | 36 |
| 22 | 48 | 36 |
| 23 | 48 | 36 |
| 24 | 48 | 36 |
| 25 | 47 | 35 |
| 26 | 47 | 35 |
| 27 | 47 | 35 |
| 28 | 47 | 35 |
| 29 | 46 | 34 |
| 30 | 46 | 34 |
How November really feels in Dorchester
Once humidity and wind are folded in, November averages 0 days that feel above 90°F and 18 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in November is cold — wind chill drags the overnight "feels like" below the raw low.
Dorchester weather by month
How November compares with the rest of the year at a glance. November is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 36° / 24° | 3.7 | 10 | 5.6 | 9.3 | 0.0 |
| Feb | 38° / 25° | 3.3 | 8.8 | 5.1 | 10.3 | 0.0 |
| Mar | 44° / 31° | 4.6 | 11.1 | 4.6 | 11.6 | 0.8 |
| Apr | 54° / 41° | 3.9 | 11 | 1 | 13.1 | 3.2 |
| May | 64° / 50° | 3.2 | 10.6 | 0 | 14.4 | 5.5 |
| Jun | 73° / 59° | 3.4 | 10.1 | 0 | 15 | 6.6 |
| Jul | 79° / 65° | 2.9 | 9.6 | 0 | 14.8 | 6.7 |
| Aug | 78° / 65° | 3.4 | 9.2 | 0 | 13.7 | 7.0 |
| Sep | 71° / 58° | 3.5 | 8.2 | 0 | 12.3 | 6.9 |
| Oct | 61° / 48° | 4.3 | 9.8 | 0.1 | 10.8 | 5.1 |
| Nov | 50° / 38° | 3.7 | 9.6 | 0.8 | 9.6 | 2.4 |
| Dec | 41° / 30° | 4.5 | 10.8 | 4.3 | 9 | 0.3 |
Cloud cover in November
The sky is clear or mostly clear about 35% of the time in November.
Beyond those clear spells, partly cloudy skies cover about 14% of November, with mostly cloudy or overcast conditions the remaining 51%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 48 | 48 | 48 | 49 | 48 | 49 | 49 | 48 | 49 | 49 | 49 | 50 | 50 | 50 | 51 | 51 | 51 | 50 | 49 | 49 | 50 | 50 | 50 | 49 | 49 | 50 | 49 | 49 | 49 | 48 |
| Cloudier (%) | 52 | 52 | 52 | 51 | 52 | 51 | 51 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 49 | 49 | 49 | 50 | 51 | 51 | 50 | 50 | 50 | 51 | 51 | 50 | 51 | 51 | 51 | 52 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 48 | 52 |
| 2 | 48 | 52 |
| 3 | 48 | 52 |
| 4 | 49 | 51 |
| 5 | 48 | 52 |
| 6 | 49 | 51 |
| 7 | 49 | 51 |
| 8 | 48 | 52 |
| 9 | 49 | 51 |
| 10 | 49 | 51 |
| 11 | 49 | 51 |
| 12 | 50 | 50 |
| 13 | 50 | 50 |
| 14 | 50 | 50 |
| 15 | 51 | 49 |
| 16 | 51 | 49 |
| 17 | 51 | 49 |
| 18 | 50 | 50 |
| 19 | 49 | 51 |
| 20 | 49 | 51 |
| 21 | 50 | 50 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 49 | 51 |
| 25 | 49 | 51 |
| 26 | 50 | 50 |
| 27 | 49 | 51 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 48 | 52 |
Chance of precipitation in November
Dorchester gets around 3.7 in of rain and snow over 9.6 wet days in November. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 32% and peaks near 33% on the wettest days, and about 1 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 32 |
| Snow chance (%) | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 8 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 31 | 1 |
| 2 | 31 | 2 |
| 3 | 31 | 2 |
| 4 | 32 | 2 |
| 5 | 32 | 2 |
| 6 | 32 | 2 |
| 7 | 33 | 2 |
| 8 | 33 | 2 |
| 9 | 33 | 3 |
| 10 | 33 | 3 |
| 11 | 33 | 3 |
| 12 | 33 | 3 |
| 13 | 33 | 3 |
| 14 | 33 | 3 |
| 15 | 33 | 3 |
| 16 | 33 | 3 |
| 17 | 33 | 3 |
| 18 | 33 | 3 |
| 19 | 33 | 3 |
| 20 | 33 | 3 |
| 21 | 32 | 3 |
| 22 | 32 | 3 |
| 23 | 32 | 3 |
| 24 | 32 | 4 |
| 25 | 31 | 4 |
| 26 | 31 | 5 |
| 27 | 31 | 6 |
| 28 | 31 | 7 |
| 29 | 31 | 8 |
| 30 | 32 | 8 |
Humidity in November
Most of November feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, November lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 95 | 95 | 95 | 96 | 96 | 96 | 96 | 96 | 97 | 97 | 97 | 97 | 97 | 97 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 |
| Comfortable (%) | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 95 | 4 | 1 |
| 2 | 95 | 4 | 1 |
| 3 | 95 | 4 | 1 |
| 4 | 96 | 3 | 1 |
| 5 | 96 | 3 | 1 |
| 6 | 96 | 3 | 1 |
| 7 | 96 | 3 | 1 |
| 8 | 96 | 3 | 1 |
| 9 | 97 | 2 | 1 |
| 10 | 97 | 2 | 1 |
| 11 | 97 | 2 | 1 |
| 12 | 97 | 2 | 1 |
| 13 | 97 | 2 | 1 |
| 14 | 97 | 2 | 1 |
| 15 | 98 | 2 | 0 |
| 16 | 98 | 2 | 0 |
| 17 | 99 | 1 | 0 |
| 18 | 99 | 1 | 0 |
| 19 | 99 | 1 | 0 |
| 20 | 99 | 1 | 0 |
| 21 | 99 | 1 | 0 |
| 22 | 99 | 1 | 0 |
| 23 | 99 | 1 | 0 |
| 24 | 99 | 1 | 0 |
| 25 | 99 | 1 | 0 |
| 26 | 99 | 1 | 0 |
| 27 | 99 | 1 | 0 |
| 28 | 100 | 0 | 0 |
| 29 | 100 | 0 | 0 |
| 30 | 100 | 0 | 0 |
Wind in November
Winds average 10 mph in November.
Across November, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 10 | light breeze |
| 2 | 10 | light breeze |
| 3 | 10 | light breeze |
| 4 | 10 | light breeze |
| 5 | 10 | light breeze |
| 6 | 10 | light breeze |
| 7 | 10 | light breeze |
| 8 | 10 | light breeze |
| 9 | 10 | light breeze |
| 10 | 10 | light breeze |
| 11 | 10 | light breeze |
| 12 | 10 | light breeze |
| 13 | 10 | light breeze |
| 14 | 10 | light breeze |
| 15 | 10 | light breeze |
| 16 | 10 | light breeze |
| 17 | 10 | light breeze |
| 18 | 10 | light breeze |
| 19 | 10 | light breeze |
| 20 | 10 | light breeze |
| 21 | 10 | light breeze |
| 22 | 10 | light breeze |
| 23 | 10 | light breeze |
| 24 | 10 | light breeze |
| 25 | 10 | light breeze |
| 26 | 10 | light breeze |
| 27 | 10 | light breeze |
| 28 | 10 | light breeze |
| 29 | 10 | light breeze |
| 30 | 10 | light breeze |
Sunrise & sunset in November
Daylight runs from about 10 h 06 min at the start of November to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over November. Sunrise moves from 6:24 AM to 6:59 AM, and sunset from 4:32 PM to 4:08 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.1 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.6 | 9.6 | 9.6 | 9.5 | 9.5 | 9.5 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.2 |
| Sunrise (AM) | 6:24 | 6:25 | 6:27 | 6:28 | 6:29 | 6:30 | 6:32 | 6:33 | 6:34 | 6:36 | 6:37 | 6:38 | 6:39 | 6:40 | 6:42 | 6:43 | 6:44 | 6:45 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 |
| Sunset (PM) | 4:32 | 4:30 | 4:29 | 4:28 | 4:27 | 4:26 | 4:25 | 4:24 | 4:23 | 4:22 | 4:21 | 4:20 | 4:19 | 4:18 | 4:17 | 4:16 | 4:15 | 4:15 | 4:14 | 4:13 | 4:13 | 4:12 | 4:11 | 4:11 | 4:10 | 4:10 | 4:09 | 4:09 | 4:09 | 4:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.1 | 6:24 | 4:32 |
| 2 | 10.1 | 6:25 | 4:30 |
| 3 | 10.0 | 6:27 | 4:29 |
| 4 | 10.0 | 6:28 | 4:28 |
| 5 | 10.0 | 6:29 | 4:27 |
| 6 | 9.9 | 6:30 | 4:26 |
| 7 | 9.9 | 6:32 | 4:25 |
| 8 | 9.8 | 6:33 | 4:24 |
| 9 | 9.8 | 6:34 | 4:23 |
| 10 | 9.8 | 6:36 | 4:22 |
| 11 | 9.7 | 6:37 | 4:21 |
| 12 | 9.7 | 6:38 | 4:20 |
| 13 | 9.7 | 6:39 | 4:19 |
| 14 | 9.6 | 6:40 | 4:18 |
| 15 | 9.6 | 6:42 | 4:17 |
| 16 | 9.6 | 6:43 | 4:16 |
| 17 | 9.5 | 6:44 | 4:15 |
| 18 | 9.5 | 6:45 | 4:15 |
| 19 | 9.5 | 6:47 | 4:14 |
| 20 | 9.4 | 6:48 | 4:13 |
| 21 | 9.4 | 6:49 | 4:13 |
| 22 | 9.4 | 6:50 | 4:12 |
| 23 | 9.3 | 6:51 | 4:11 |
| 24 | 9.3 | 6:52 | 4:11 |
| 25 | 9.3 | 6:54 | 4:10 |
| 26 | 9.3 | 6:55 | 4:10 |
| 27 | 9.2 | 6:56 | 4:09 |
| 28 | 9.2 | 6:57 | 4:09 |
| 29 | 9.2 | 6:58 | 4:09 |
| 30 | 9.2 | 6:59 | 4:08 |
Solar energy in November
Average shortwave solar energy reaching the ground each day in November, about 2.03 kWh/m².
For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 5.95 kWh/m² in July across the year — November's 2.03 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.7 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.4 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.4 | Moderate |
| 4 | 2.3 | Moderate |
| 5 | 2.3 | Moderate |
| 6 | 2.3 | Moderate |
| 7 | 2.2 | Moderate |
| 8 | 2.2 | Moderate |
| 9 | 2.2 | Moderate |
| 10 | 2.2 | Moderate |
| 11 | 2.1 | Moderate |
| 12 | 2.1 | Moderate |
| 13 | 2.1 | Moderate |
| 14 | 2.1 | Moderate |
| 15 | 2.0 | Moderate |
| 16 | 2.0 | Moderate |
| 17 | 2.0 | Moderate |
| 18 | 2.0 | Dim |
| 19 | 1.9 | Dim |
| 20 | 1.9 | Dim |
| 21 | 1.9 | Dim |
| 22 | 1.9 | Dim |
| 23 | 1.9 | Dim |
| 24 | 1.8 | Dim |
| 25 | 1.8 | Dim |
| 26 | 1.8 | Dim |
| 27 | 1.8 | Dim |
| 28 | 1.8 | Dim |
| 29 | 1.8 | Dim |
| 30 | 1.7 | Dim |
Hazard calendar for Dorchester
In November, Dorchester sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Dorchester sits in the Atlantic hurricane belt; the season peaks August–October.
Is November a good time to visit Dorchester?
Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
November is a weaker month for outdoor sightseeing in Dorchester.
What to pack for Dorchester in November
From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In November, Dorchester sees daytime highs around 50°F and nights near 38°F. Pack a warm layer. Worth having: rain gear. About 10 days see rain.
Sea temperature near Dorchester in November
The nearest coast averages about 50°F in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 12 mi away) is warmest in August at about 66°F and coldest in February near 38°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 41 | 38 | 38 | 42 | 50 | 58 | 65 | 66 | 63 | 56 | 50 | 46 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 41 | Bracing |
| Feb | 38 | Bracing |
| Mar | 38 | Bracing |
| Apr | 42 | Bracing |
| May | 50 | Bracing |
| Jun | 58 | Bracing |
| Jul | 65 | Cool |
| Aug | 66 | Cool |
| Sep | 63 | Cool |
| Oct | 56 | Bracing |
| Nov | 50 | Bracing |
| Dec | 46 | Bracing |
UV index in Dorchester in November
Clear-sky midday UV in November peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Dorchester peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 4 | 5 | 7 | 7 | 7 | 5 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Moderate | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 5 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Dorchester in November
Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.
Air quality in Dorchester is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 13 | 14 | 14 | 15 | 15 | 16 | 14 | 12 | 10 | 8 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 14 | Moderate |
| Apr | 14 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 16 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Good |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 10 | Good |
Where is Dorchester?
Dorchester sits at 42.3°N, 71.1°W, 118 ft above sea level, in United States. The nearest listed city is Ashmont, 1.2 mi away.
Topography around Dorchester
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Dorchester.
Within 2 miles, the terrain around Dorchester has only modest variations in elevation — a maximum elevation change of 210 ft around an average of 72 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 633 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,165 ft.
The land around Dorchester is covered by artificial surfaces (56%) and trees (30%) within 2 miles, trees (44%), artificial surfaces (28%) and water (22%) within 10 miles, and trees (60%) and water (30%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Dorchester (42.2973°, -71.0745°, elevation 118 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).