Lowell, MA weather in July
July in Lowell: warm and often humid, with frequent rain. Highs 85°F, lows 61°F, rain on about 10 days. This is the peak of the warm season in Lowell.
- Normal high
- 85°F
- Normal low
- 61°F
- Wet days
- 10
- 3.9 in total
- Muggy days
- 10
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 84°F | 85°F |
| Normal low | 60°F | 61°F |
| Chance of a wet day | 35% | 34% |
| Sunrise / sunset | 5:11 am / 8:26 pm | 5:36 am / 8:07 pm |
| Daylight | 15.3 h | 14.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical July day
- 6 am67°Fdew point 61°F
- 9 am75°Fdew point 61°F
- Noon80°Fdew point 59°F
- 3 pm82°Fdew point 59°F
- 6 pm79°Fdew point 60°F
- 9 pm72°Fdew point 61°F
NOAA hourly normals (local standard time) from Manchester Airport (22 mi away); average wind 6 mph; clear or few clouds in 24% of daytime hours, mostly cloudy or overcast in 49%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 31
- Hot dayshigh 90°F or more8 of 31
- Muggy daysdaily mean dew point 65°F or more10 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 3.9 in; a dry July brings about 2.5 in and a wet one about 4.6 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20202010: average high 89°F
- Coolest July2009: average high 79°F
- Wettest July2008: 8.9 in
- Driest July2016: 1.6 in
- Highest reading102°F (July 23, 2011)
- Lowest reading45°F (July 22, 1997)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 79°F | 85°F | 83°F |
| Normal low | 55°F | 61°F | 59°F |
| Wet days | 11 | 10 | 10 |
| Comfortable days | 11 | 4 | 6 |
| Daylight | 15.3 h | 14.9 h | 13.9 h |
Highs change by +6°F from June and -2°F into August.
Nearby alternatives in July
- Cooler: Kennebunkport, ME66 mi · high 77°F · 11 wet days
How Lowell ranks in July
- Normal high235th warmest of 378 cities; 2nd of 9 in Massachusetts
- Wet days240th driest of 378
- Comfortable days124th most of 340
What to pack for Lowell in July
- Light, breathable clothing – highs near 85°F and about 10 muggy days
- A rain jacket or umbrella – rain on about 10 days
- Sunglasses and sunscreen – about 15.0 hours of daylight and highs near 85°F
Heating and cooling
July has 6 heating degree days and 248 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Lowell in July?
The normal high is 85°F and the normal low is 61°F. From 1991 to 2020 the hottest July reading was 102°F (July 23, 2011).
Does it rain a lot in Lowell in July?
About 10 days in July have at least 0.01 in of precipitation, and the normal total is 3.9 in. The wettest July in 1991-2020 was in 2008 (8.9 in); the driest was in 2016 (1.6 in).
Is July a good time to visit Lowell?
July ranks 7th of 12 months on our comfort score for Lowell (54 out of 100). It has about 4 comfortable days and about 8 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain and frost dates: Lowell (USC00194313), 2.5 mi WNW of the city center, 110 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Reading (USC00196783), 12 mi SE of the city center, 110 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Manchester Airport (USW00014710), 22 mi NNW of the city center, 225 ft (108 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: Boston Logan Intl Airport (USW00014739), 24 mi SE of the city center, 12 ft (105 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Gen E L Logan International Airport (725090-14739), 24 mi SE of the city center, 11 ft (106 ft lower than the city). Hourly observations, 1991-2020.