Lowell weather in May: Lowell, Massachusetts: normal highs, lows, rain and records for May
Lowell in May has a normal high of 70°F and a normal low of 45°F, a daily mean of 58°F, rising from 66°F on the 1st to 74°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.81 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 7°C, 97 mm of precipitation in May.
- NOAA stationLowell
- Station IDUSC00194313
- Location42.64°N 71.36°W
- Elevation110 ft (34 m)
- From the center2 miles
- Population120,418
- Jan 34° 16°
- Feb 37° 17°
- Mar 45° 24°
- Apr 59° 35°
- May 70° 45°
- Jun 79° 55°
- Jul 85° 61°
- Aug 83° 59°
- Sep 76° 52°
- Oct 62° 40°
- Nov 51° 30°
- Dec 40° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lowell in May?
The normal high is 70°F and the normal low 45°F, for a daily mean of 57.5°F. May is 10.7°F warmer than April and 9.5°F cooler than June. May is the 5th warmest month of the year in Lowell and the 10th wettest. Across the month the normal high rises 8°F, from 66°F on May 1 to 74°F on May 31. From one year to the next May's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 55°F and 60°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 66°F | 40°F | 39% | 26% |
| May 8 | 68°F | 43°F | 40% | 26% |
| May 15 | 70°F | 45°F | 41% | 27% |
| May 22 | 72°F | 47°F | 40% | 26% |
| May 31 | 74°F | 50°F | 39% | 25% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 66°F | 40°F | 39% | 26% | 14 h |
| May 2 | 66°F | 41°F | 40% | 26% | 14 h 10 min |
| May 3 | 67°F | 41°F | 40% | 26% | 14 h 10 min |
| May 4 | 67°F | 41°F | 40% | 26% | 14 h 10 min |
| May 5 | 67°F | 42°F | 40% | 26% | 14 h 10 min |
| May 6 | 67°F | 42°F | 40% | 26% | 14 h 10 min |
| May 7 | 68°F | 42°F | 40% | 26% | 14 h 20 min |
| May 8 | 68°F | 43°F | 40% | 26% | 14 h 20 min |
| May 9 | 68°F | 43°F | 40% | 26% | 14 h 20 min |
| May 10 | 69°F | 43°F | 40% | 27% | 14 h 20 min |
| May 11 | 69°F | 43°F | 40% | 27% | 14 h 30 min |
| May 12 | 69°F | 44°F | 40% | 27% | 14 h 30 min |
| May 13 | 69°F | 44°F | 40% | 27% | 14 h 30 min |
| May 14 | 70°F | 44°F | 40% | 27% | 14 h 30 min |
| May 15 | 70°F | 45°F | 41% | 27% | 14 h 40 min |
| May 16 | 70°F | 45°F | 41% | 27% | 14 h 40 min |
| May 17 | 70°F | 45°F | 41% | 27% | 14 h 40 min |
| May 18 | 71°F | 46°F | 41% | 27% | 14 h 40 min |
| May 19 | 71°F | 46°F | 41% | 26% | 14 h 40 min |
| May 20 | 71°F | 46°F | 41% | 26% | 14 h 50 min |
| May 21 | 71°F | 47°F | 41% | 26% | 14 h 50 min |
| May 22 | 72°F | 47°F | 40% | 26% | 14 h 50 min |
| May 23 | 72°F | 47°F | 40% | 26% | 14 h 50 min |
| May 24 | 72°F | 48°F | 40% | 26% | 14 h 50 min |
| May 25 | 72°F | 48°F | 40% | 26% | 14 h 50 min |
| May 26 | 73°F | 48°F | 40% | 26% | 15 h |
| May 27 | 73°F | 49°F | 40% | 26% | 15 h |
| May 28 | 73°F | 49°F | 40% | 26% | 15 h |
| May 29 | 73°F | 49°F | 40% | 25% | 15 h |
| May 30 | 74°F | 50°F | 40% | 25% | 15 h |
| May 31 | 74°F | 50°F | 39% | 25% | 15 h |
- Normal high
- 70°FMay average
- Normal low
- 45°FMay average
- Precipitation
- 3.81 inmonth total
- Days with precipitation
- 130.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 1
- Daylight
- 14 h to 15 hMay 1 to May 31
- Days at 70°F or more
- 16
- Days at 80°F or more
- 6
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00194313; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lowell in May?
On a given May day the chance of 0.01 inch or more is 40% on average, highest around May 17 (41%). In all, 3.81 in falls on 13 days of a normal May, 1 of them with an inch or more.
In a normal May in Lowell, 1 days reach 90°F and 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00194313.
What are the records for May in Lowell?
The warmest May temperature on this station's record (since 1885) is 98°F, on May 22, 1911; the coldest is 27°F, on May 2, 1892. The wettest May brought 11.58 in (2006).
The May mean against the 1991-2020 normal of 57.5°F: 2021 59.6°F (+2.1), 2024 61.1°F (+3.6), 2025 59.4°F (+1.9). 3 of 3 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.6°F | +2.1°F | 4.68 in |
| 2024 | 61.1°F | +3.6°F | 3.66 in |
| 2025 | 59.4°F | +1.9°F | 6.23 in |
Source: records: ACIS, station USC00194313; recent months: ACIS, station USC00194313. Records and recent months use complete months only.
How does May in Lowell compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, May normal highs run from 61°F in Nantucket to 73°F in Maynard; Lowell's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.