Lowell, MA weather in August
In August, Lowell sees highs around 83°F and lows around 59°F: warm and often humid, with some rain. Expect about 10 wet days. It is one of the warmest months in Lowell.
- Normal high
- 83°F
- Normal low
- 59°F
- Wet days
- 10
- 4.0 in total
- Muggy days
- 9
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 84°F | 81°F |
| Normal low | 61°F | 57°F |
| Chance of a wet day | 34% | 29% |
| Sunrise / sunset | 5:37 am / 8:05 pm | 6:09 am / 7:21 pm |
| Daylight | 14.5 h | 13.2 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 August day
- 6 am64°Fdew point 59°F
- 9 am72°Fdew point 60°F
- Noon79°Fdew point 58°F
- 3 pm80°Fdew point 58°F
- 6 pm77°Fdew point 59°F
- 9 pm70°Fdew point 60°F
NOAA hourly normals (local standard time) from Manchester Airport (22 mi away); average wind 5 mph; clear or few clouds in 28% of daytime hours, mostly cloudy or overcast in 47%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F6 of 31
- Hot dayshigh 90°F or more5 of 31
- Muggy daysdaily mean dew point 65°F or more9 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 August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 4.0 in; a dry August brings about 1.6 in and a wet one about 4.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202002: average high 87°F
- Coolest August2000: average high 79°F
- Wettest August2011: 12.9 in
- Driest August1996: 0.5 in
- Highest reading100°F (August 15, 2002)
- Lowest reading43°F (August 6, 1994)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 85°F | 83°F | 76°F |
| Normal low | 61°F | 59°F | 52°F |
| Wet days | 10 | 10 | 9 |
| Comfortable days | 4 | 6 | 15 |
| Daylight | 14.9 h | 13.9 h | 12.5 h |
Highs change by -2°F from July and -7°F into September.
Nearby alternatives in August
- Cooler: Kennebunkport, ME66 mi · high 76°F · 10 wet days
How Lowell ranks in August
- Normal high252nd warmest of 378 cities; 2nd of 9 in Massachusetts
- Wet days241st driest of 378
- Comfortable days110th most of 341
What to pack for Lowell in August
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
August has 12 heating degree days and 203 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Lowell in August?
The normal high is 83°F and the normal low is 59°F. From 1991 to 2020 the hottest August reading was 100°F (August 15, 2002).
Does it rain a lot in Lowell in August?
About 10 days in August have at least 0.01 in of precipitation, and the normal total is 4.0 in. The wettest August in 1991-2020 was in 2011 (12.9 in); the driest was in 1996 (0.5 in).
Is August a good time to visit Lowell?
August ranks 5th of 12 months on our comfort score for Lowell (57 out of 100). It has about 6 comfortable days and about 5 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.