Lowell weather by month
Average highs run from 35°F in January to 83°F in July, and January nights average 19°F. It gets 41 inches of rain and melted snow a year and 59 inches of snow. Nights drop below freezing about 123 times a year. The most comfortable months are May to September.
Best time to visit Lowell
For comfortable weather, go in May to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 35°F | 19°F | 2.9 in | 16.1 in | 6 | 0 | 28 | cold |
| February | 38°F | 21°F | 2.4 in | 12.5 in | 5 | 0 | 25 | cold |
| March | 45°F | 28°F | 3.4 in | 12.9 in | 6 | 0 | 21 | cold |
| April | 58°F | 38°F | 3.6 in | 2.3 in | 7 | 0 | 7 | cool |
| May | 69°F | 48°F | 3.4 in | 0.0 in | 8 | 1 | 0 | mild |
| June | 77°F | 57°F | 4.0 in | 0.0 in | 8 | 3 | 0 | warm |
| July | 83°F | 63°F | 3.5 in | 0.0 in | 6 | 6 | 0 | warm |
| August | 82°F | 62°F | 3.0 in | 0.0 in | 6 | 4 | 0 | warm |
| September | 74°F | 54°F | 3.8 in | 0.0 in | 5 | 1 | 0 | mild |
| October | 62°F | 43°F | 4.1 in | 0.1 in | 6 | 0 | 3 | cool |
| November | 51°F | 34°F | 3.5 in | 1.9 in | 6 | 0 | 14 | cool |
| December | 40°F | 25°F | 3.3 in | 13.2 in | 6 | 0 | 25 | cold |
| Year | 59°F avg | 41°F avg | 40.9 in | 59.0 in | 75 | 15 | 123 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Lawrence Municipal Airport, MA (USW00094723), 11.3 miles from the city center; snowfall from Bedford, MA. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Lowell
The shortest day is December 21, with 9h 02m of daylight; the longest is June 21, with 15h 19m. The earliest sunset comes around December 3 (4:11 pm) and the latest around June 20 (8:26 pm). The sun sets after 8 pm on 83 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:12 am | 4:36 pm | 9h 24m |
| February | 6:42 am | 5:17 pm | 10h 35m |
| March | 6:57 am | 6:51 pm | 11h 54m |
| April | 6:04 am | 7:27 pm | 13h 23m |
| May | 5:23 am | 8:00 pm | 14h 37m |
| June | 5:07 am | 8:24 pm | 15h 18m |
| July | 5:21 am | 8:20 pm | 15h 00m |
| August | 5:52 am | 7:46 pm | 13h 54m |
| September | 6:25 am | 6:54 pm | 12h 29m |
| October | 6:58 am | 6:02 pm | 11h 04m |
| November | 6:37 am | 4:22 pm | 9h 45m |
| December | 7:08 am | 4:12 pm | 9h 04m |
Calculated for 2026 at the center of Lowell with NOAA's solar equations, in local clock time (Eastern Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Lowell getting warmer?
The last 10 years averaged 3.3°F warmer than the 20th century. See the climate stripes for Lowell.Frequently asked questions
What is the warmest month in Lowell?
July is the warmest month, with an average high of 83°F and an average low of 63°F (NOAA 1991-2020 normals).
What is the coldest month in Lowell?
January is the coldest, with average lows of 19°F and highs of 35°F.
What is the rainiest month in Lowell?
October gets the most precipitation, 4.1 inches on average. February is the driest at 2.4 inches.
Does it snow in Lowell?
Yes. Lowell averages 59 inches of snow a year.
When is the best time to visit Lowell?
For comfortable weather, May to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Lowell?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Lowell profile.
Compare the weather: Lowell vs Lawrence, Lowell vs Nashua, Lowell vs Somerville, Lowell vs Newton.