Climate averages 1991–2020
Lynn weather
in April.
A cool, wet month: the 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Lynn: daytime highs average 11.4°C and nights cool to about 4.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 103 mm of rain on roughly 11 days, which makes April a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 21 min on an average April day.
The nearest other city in this atlas is Boston (15 km away). In April its highs average 13.2°C, 1.8°C warmer than Lynn, with 100 mm of rain.
Among the 498 cities listed in the United States, Lynn ranks joint 483rd of 498 for the warmest April highs and joint 381st of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Lynn is 7.9°C cooler than that mean.
From April to May, average highs rise by 5.2°C to 16.7°C, and monthly rainfall falls from 103 mm to 84 mm.
The annual picture
April 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
Lynn climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.6°C-5.4°C | -5.4°C | 92 | 10.0 | 9.59 h |
| February | 2.7°C-4.8°C | -4.8°C | 84 | 9.1 | 10.511 h |
| March | 5.9°C-1.3°C | -1.3°C | 115 | 11.3 | 11.912 h |
| April, selected | 11.4°C4.2°C | 4.2°C | 103 | 10.7 | 13.313 h |
| May | 16.7°C9.6°C | 9.6°C | 84 | 10.7 | 14.615 h |
| June | 21.8°C15.0°C | 15.0°C | 88 | 10.3 | 15.215 h |
| July | 25.2°C18.6°C | 18.6°C | 74 | 9.9 | 15.015 h |
| August | 24.6°C18.3°C | 18.3°C | 85 | 9.0 | 13.914 h |
| September | 21.0°C14.8°C | 14.8°C | 87 | 8.2 | 12.513 h |
| October | 15.2°C9.1°C | 9.1°C | 109 | 10.1 | 11.111 h |
| November | 9.6°C3.6°C | 3.6°C | 96 | 9.6 | 9.810 h |
| December | 4.6°C-1.5°C | -1.5°C | 116 | 10.6 | 9.19 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
April in nearby cities
- Boston in AprilUnited States · 15 kmHigh 13.2°C · Low 3.5°C · 100 mm rain
- Dorchester in AprilUnited States · 21 kmHigh 13.0°C · Low 3.8°C · 100 mm rain
- Quincy in AprilUnited States · 24 kmHigh 12.5°C · Low 4.2°C · 100 mm rain
- Newton in AprilUnited States · 26 kmHigh 13.4°C · Low 3.9°C · 93 mm rain
- Lawrence (Massachusetts), United States in AprilUnited States · 32 kmHigh 13.4°C · Low 3.5°C · 95 mm rain
- Lowell in AprilUnited States · 35 kmHigh 13.5°C · Low 3.4°C · 95 mm rain
- Brockton in AprilUnited States · 43 kmHigh 12.9°C · Low 4.2°C · 95 mm rain
- Nashua in AprilUnited States · 54 kmHigh 13.3°C · Low 3.0°C · 94 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 Lynn) is explained once on the Lynn year overview and on the Sources, method and limits page.