Rockland weather in April
In April, Rockland sees average daytime highs of 54°F and overnight lows near 41°F, with 3.9 in of precipitation across 11 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 50°F in the first days to 58°F by the end. The sky is clear or mostly clear about 24% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 24 min at the start of April to 13 h 48 min by month's end. Set against the rest of the year, April is Rockland's 12th-clearest and 6th-windiest month. For the whole year in context, see Rockland's year-round climate.
- Daytime high
- 54°
- 7th warmest
- Overnight low
- 41°
- 6th coldest
- Precipitation
- 3.9 in
- 11 wet days
- Daylight
- 13 h 06 min
- 5:10 AM – 6:18 PM
- Cloud cover
- 65%
- 12th clearest
- Wind
- 9 mph
- 6th windiest
- Solar energy
- 4.92 kWh/m²
- Travel score
- 3.2
- out of 10
Rockland is town in Plymouth County, Massachusetts, United States.
- Founded
- 1874
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 50°F in the first days to 58°F by the end.
A typical April day in Rockland reaches about 54°F in the afternoon and slips back to 41°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 45°F and 65°F. Set against its neighbours, April runs about 10°F warmer than March and about 9°F cooler than May.
| 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) | 49 | 49 | 50 | 50 | 51 | 51 | 51 | 52 | 52 | 53 | 53 | 53 | 54 | 54 | 54 | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 59 |
| Avg low (°F) | 36 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 39 | 39 | 39 | 40 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 49 | 36 |
| 2 | 49 | 37 |
| 3 | 50 | 37 |
| 4 | 50 | 37 |
| 5 | 51 | 37 |
| 6 | 51 | 38 |
| 7 | 51 | 38 |
| 8 | 52 | 38 |
| 9 | 52 | 39 |
| 10 | 53 | 39 |
| 11 | 53 | 39 |
| 12 | 53 | 40 |
| 13 | 54 | 40 |
| 14 | 54 | 40 |
| 15 | 54 | 41 |
| 16 | 55 | 41 |
| 17 | 55 | 42 |
| 18 | 55 | 42 |
| 19 | 56 | 42 |
| 20 | 56 | 42 |
| 21 | 56 | 43 |
| 22 | 56 | 43 |
| 23 | 57 | 43 |
| 24 | 57 | 44 |
| 25 | 57 | 44 |
| 26 | 58 | 44 |
| 27 | 58 | 44 |
| 28 | 58 | 45 |
| 29 | 58 | 45 |
| 30 | 59 | 45 |
How April really feels in Rockland
Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 8 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in April is cold — wind chill drags the overnight "feels like" below the raw low.
Rockland weather by month
How April compares with the rest of the year at a glance. April is the 7th-warmest and 4th-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 April
The sky is clear or mostly clear about 24% of the time in April, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 61%.
| 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 (%) | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Cloudier (%) | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 62 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 39 | 61 |
| 2 | 39 | 61 |
| 3 | 38 | 62 |
| 4 | 38 | 62 |
| 5 | 38 | 62 |
| 6 | 38 | 62 |
| 7 | 37 | 63 |
| 8 | 37 | 63 |
| 9 | 37 | 63 |
| 10 | 37 | 63 |
| 11 | 37 | 63 |
| 12 | 37 | 63 |
| 13 | 37 | 63 |
| 14 | 38 | 62 |
| 15 | 39 | 61 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 40 | 60 |
| 20 | 40 | 60 |
| 21 | 40 | 60 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 40 | 60 |
| 25 | 40 | 60 |
| 26 | 40 | 60 |
| 27 | 40 | 60 |
| 28 | 40 | 60 |
| 29 | 40 | 60 |
| 30 | 40 | 60 |
Chance of precipitation in April
Rockland gets around 3.9 in of rain and snow over 11 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 37% and peaks near 38% 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 (%) | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 37 | 37 |
| Snow chance (%) | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 38 | 8 |
| 2 | 38 | 8 |
| 3 | 38 | 7 |
| 4 | 38 | 7 |
| 5 | 38 | 7 |
| 6 | 38 | 6 |
| 7 | 38 | 6 |
| 8 | 37 | 5 |
| 9 | 37 | 5 |
| 10 | 36 | 5 |
| 11 | 36 | 4 |
| 12 | 36 | 4 |
| 13 | 35 | 3 |
| 14 | 35 | 3 |
| 15 | 35 | 3 |
| 16 | 35 | 2 |
| 17 | 35 | 2 |
| 18 | 35 | 2 |
| 19 | 36 | 2 |
| 20 | 36 | 2 |
| 21 | 36 | 1 |
| 22 | 36 | 1 |
| 23 | 36 | 1 |
| 24 | 37 | 1 |
| 25 | 37 | 1 |
| 26 | 37 | 1 |
| 27 | 37 | 1 |
| 28 | 37 | 1 |
| 29 | 37 | 1 |
| 30 | 37 | 0 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April 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 (%) | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 96 | 96 | 96 | 95 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 100 | 0 | 0 |
| 2 | 100 | 0 | 0 |
| 3 | 100 | 0 | 0 |
| 4 | 100 | 0 | 0 |
| 5 | 100 | 0 | 0 |
| 6 | 100 | 0 | 0 |
| 7 | 99 | 1 | 0 |
| 8 | 99 | 1 | 0 |
| 9 | 99 | 1 | 0 |
| 10 | 99 | 1 | 0 |
| 11 | 99 | 1 | 0 |
| 12 | 99 | 1 | 0 |
| 13 | 99 | 1 | 0 |
| 14 | 99 | 1 | 0 |
| 15 | 99 | 1 | 0 |
| 16 | 99 | 1 | 0 |
| 17 | 99 | 1 | 0 |
| 18 | 99 | 1 | 0 |
| 19 | 98 | 2 | 0 |
| 20 | 98 | 2 | 0 |
| 21 | 98 | 2 | 0 |
| 22 | 98 | 2 | 0 |
| 23 | 98 | 2 | 0 |
| 24 | 97 | 2 | 1 |
| 25 | 97 | 2 | 1 |
| 26 | 97 | 2 | 1 |
| 27 | 96 | 3 | 1 |
| 28 | 96 | 3 | 1 |
| 29 | 96 | 3 | 1 |
| 30 | 95 | 4 | 1 |
Wind in April
Winds average 9 mph in April.
Across April, daily wind ranges from about 9 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 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 9 | light breeze |
| 7 | 9 | light breeze |
| 8 | 9 | light breeze |
| 9 | 9 | light breeze |
| 10 | 9 | light breeze |
| 11 | 9 | light breeze |
| 12 | 9 | light breeze |
| 13 | 9 | light breeze |
| 14 | 9 | light breeze |
| 15 | 9 | light breeze |
| 16 | 9 | light breeze |
| 17 | 9 | light breeze |
| 18 | 9 | light breeze |
| 19 | 9 | light breeze |
| 20 | 9 | light breeze |
| 21 | 9 | light breeze |
| 22 | 9 | light breeze |
| 23 | 9 | light breeze |
| 24 | 9 | light breeze |
| 25 | 9 | light breeze |
| 26 | 9 | light breeze |
| 27 | 9 | light breeze |
| 28 | 9 | light breeze |
| 29 | 9 | light breeze |
| 30 | 9 | light breeze |
Sunrise & sunset in April
Daylight runs from about 12 h 24 min at the start of April to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 84 minutes over April. Sunrise moves from 5:36 AM to 4:48 AM, and sunset from 6:01 PM to 6:34 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) | 12.4 | 12.5 | 12.5 | 12.6 | 12.6 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 |
| Sunrise (AM) | 5:36 | 5:34 | 5:32 | 5:30 | 5:29 | 5:27 | 5:25 | 5:23 | 5:22 | 5:20 | 5:18 | 5:16 | 5:15 | 5:13 | 5:11 | 5:10 | 5:08 | 5:06 | 5:05 | 5:03 | 5:02 | 5:00 | 4:59 | 4:57 | 4:55 | 4:54 | 4:52 | 4:51 | 4:50 | 4:48 |
| Sunset (PM) | 6:01 | 6:02 | 6:03 | 6:04 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 | 6:32 | 6:33 | 6:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.4 | 5:36 | 6:01 |
| 2 | 12.5 | 5:34 | 6:02 |
| 3 | 12.5 | 5:32 | 6:03 |
| 4 | 12.6 | 5:30 | 6:04 |
| 5 | 12.6 | 5:29 | 6:06 |
| 6 | 12.7 | 5:27 | 6:07 |
| 7 | 12.7 | 5:25 | 6:08 |
| 8 | 12.8 | 5:23 | 6:09 |
| 9 | 12.8 | 5:22 | 6:10 |
| 10 | 12.9 | 5:20 | 6:11 |
| 11 | 12.9 | 5:18 | 6:12 |
| 12 | 13.0 | 5:16 | 6:14 |
| 13 | 13.0 | 5:15 | 6:15 |
| 14 | 13.0 | 5:13 | 6:16 |
| 15 | 13.1 | 5:11 | 6:17 |
| 16 | 13.1 | 5:10 | 6:18 |
| 17 | 13.2 | 5:08 | 6:19 |
| 18 | 13.2 | 5:06 | 6:20 |
| 19 | 13.3 | 5:05 | 6:21 |
| 20 | 13.3 | 5:03 | 6:23 |
| 21 | 13.4 | 5:02 | 6:24 |
| 22 | 13.4 | 5:00 | 6:25 |
| 23 | 13.5 | 4:59 | 6:26 |
| 24 | 13.5 | 4:57 | 6:27 |
| 25 | 13.5 | 4:55 | 6:28 |
| 26 | 13.6 | 4:54 | 6:29 |
| 27 | 13.6 | 4:52 | 6:30 |
| 28 | 13.7 | 4:51 | 6:32 |
| 29 | 13.7 | 4:50 | 6:33 |
| 30 | 13.8 | 4:48 | 6:34 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.92 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 — April's 4.92 kWh/m² falls in the middle.
| 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) | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.4 | Bright |
| 2 | 4.4 | Bright |
| 3 | 4.5 | Bright |
| 4 | 4.5 | Bright |
| 5 | 4.5 | Bright |
| 6 | 4.6 | Bright |
| 7 | 4.6 | Bright |
| 8 | 4.7 | Bright |
| 9 | 4.7 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 5.0 | Bright |
| 16 | 5.0 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.2 | Bright |
Hazard calendar for Rockland
None of Rockland's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Rockland sits in the Atlantic hurricane belt; the season peaks August–October.
Is April a good time to visit Rockland?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Rockland.
What to pack for Rockland in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Rockland sees daytime highs around 54°F and nights near 41°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.
Sea temperature near Rockland in April
The nearest coast averages about 42°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 15 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 | 57 | 51 | 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 | 57 | Bracing |
| Nov | 51 | Bracing |
| Dec | 46 | Bracing |
UV index in Rockland in April
Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rockland peaks around July 10 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 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 | 8 | 8 | 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 | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 5 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Rockland in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Rockland 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 Rockland?
Rockland sits at 42.1°N, 70.9°W, 161 ft above sea level, in United States. The nearest listed city is Abington, 2.5 mi away.
Topography around Rockland
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Rockland.
Within 2 miles, the terrain around Rockland has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 144 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 512 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,286 ft.
The land around Rockland is covered by trees (76%) within 2 miles, trees (76%) within 10 miles, and trees (51%) and water (40%) 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 Rockland (42.1307°, -70.9162°, elevation 161 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).