Brockton, MA weather in May
In May, Brockton sees highs around 70°F and lows around 47°F: mild, with frequent rain. Rain falls on about 13 days.
- Normal high
- 70°F
- Normal low
- 47°F
- Wet days
- 13
- 3.4 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 65°F | 74°F |
| Normal low | 43°F | 52°F |
| Chance of a wet day | 42% | 40% |
| Sunrise / sunset | 5:39 am / 7:42 pm | 5:11 am / 8:12 pm |
| Daylight | 14.1 h | 15.0 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 May day
- 6 am51°Fdew point 46°F
- 9 am59°Fdew point 46°F
- Noon63°Fdew point 46°F
- 3 pm63°Fdew point 46°F
- 6 pm59°Fdew point 46°F
- 9 pm53°Fdew point 47°F
NOAA hourly normals (local standard time) from Plymouth Muni Airport (19 mi away); average wind 8 mph; clear or few clouds in 22% of daytime hours, mostly cloudy or overcast in 61%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more1 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below1 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 3.4 in; a dry May brings about 2.4 in and a wet one about 3.8 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How May varies from year to year
- Warmest May, 1991-20202015: average high 76°F
- Coolest May2005: average high 61°F
- Wettest May2006: 7.9 in
- Driest May1992: 1.1 in
- Highest reading96°F (May 18, 2017)
- Lowest reading27°F (May 14, 1996)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 59°F | 70°F | 78°F |
| Normal low | 38°F | 47°F | 57°F |
| Wet days | 12 | 13 | 11 |
| Comfortable days | 7 | 16 | 12 |
| Daylight | 13.4 h | 14.6 h | 15.2 h |
Highs change by +11°F from April and +8°F into June.
Nearby alternatives in May
- Cooler: Nantucket, MA73 mi · high 61°F · 12 wet days
How Brockton ranks in May
- Normal high271st warmest of 378 cities; 3rd of 9 in Massachusetts
- Wet days323rd driest of 378
- Comfortable days63rd most of 339
What to pack for Brockton in May
- A rain jacket or umbrella – rain on about 13 days
Heating and cooling
May has 229 heating degree days and 29 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Brockton in May?
The normal high is 70°F and the normal low is 47°F. From 1991 to 2020 the hottest May reading was 96°F (most recently on May 18, 2017).
Does it rain a lot in Brockton in May?
About 13 days in May have at least 0.01 in of precipitation, and the normal total is 3.4 in. The wettest May in 1991-2020 was in 2006 (7.9 in); the driest was in 1992 (1.2 in).
Is May a good time to visit Brockton?
May ranks 1st of 12 months on our comfort score for Brockton (73 out of 100). It has about 16 comfortable days and about 1 day at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snow depth and frost dates: Brockton (USC00190860), 2.5 mi SSE of the city center, 75 ft . NOAA normals and daily records, 1991-2020.
- Snowfall: Norton W (USC00195984), 9.9 mi SW of the city center, 95 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Plymouth Muni Airport (USW00054769), 19 mi SE of the city center, 149 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Boston Logan Intl Airport (USW00014739), 19 mi N of the city center, 12 ft (101 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Gen E L Logan International Airport (725090-14739), 19 mi N of the city center, 11 ft (102 ft lower than the city). Hourly observations, 1991-2020.