May weather forecast
Leominster, MA

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Weather in May

May in Leominster becomes a celebration of spring, with increased sunlight and warming temperatures. The city gleams under longer sunlight hours and fewer cloudy days compared to the previous month. Humidity starts rising, making the air heavy with rich, earthy aromas. Despite having temperatures that vary from 47.3°F (8.5°C) to 66.9°F (19.4°C), Leominster maintains a cozy and temperate climate. By the end of May, preparation is underway for the approaching summer heat.

Temperature

With the onset of May, Leominster's average high-temperature experiences a rise, moving from April's cool 55°F (12.8°C) to a refreshing 66.9°F (19.4°C). Leominster's nighttime temperature during May is consistently averaged at a frosty 47.3°F (8.5°C).

Humidity

In Leominster, the average relative humidity in May is 74%.

Rainfall

In May, in Leominster, the rain falls for 15.5 days. Throughout May, 2.24" (57mm) of precipitation is accumulated. In Leominster, Massachusetts, during the entire year, the rain falls for 148.5 days and collects up to 29.29" (744mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Leominster aggregates 0.16" (4mm) of snow. Throughout the year, there are 38.8 snowfall days, and 24.61" (625mm) of snow is accumulated.

Daylight

In Leominster, the average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 5:40 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:17 pm EDT.

Sunshine

In May, the average sunshine is 8.2h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 5 during May leads to these advisories:
Make use of precautions - It is urged to ward off sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature, in May, in Leominster, is 66.9°F (19.4°C), while the low-temperature averages to 47.3°F (8.5°C).

What is the average humidity in May?

The average relative humidity in May is 74%.

How many days does it rain in May?

In Leominster, in May, during 15.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Leominster aggregates 0.16" (4mm) of snow.

How many hours of daylight does Leominster have in May?

In Leominster, Massachusetts, the average day length in May is 14h and 38min.

What time are sunrise and sunset in May?

On the first day of May in Leominster, sunrise is at 5:40 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:17 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.2h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Leominster, MA

Average temperature in May - Leominster, MA
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in May: 47.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in May
Leominster, MA

Average pressure in May - Leominster, MA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Leominster, MA

Average wind speed in May - Leominster, MA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Leominster, MA

Average humidity in May - Leominster, MA
  • Average humidity in May: 74%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

Average rainfall in May
Leominster, MA

Average rainfall in May - Leominster, MA
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in May
Leominster, MA

Average rainfall days in May - Leominster, MA
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and February (7.3 days).

Average snowfall in May
Leominster, MA

Average snowfall in May - Leominster, MA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Leominster, MA

Average snowfall days in May - Leominster, MA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Leominster, MA

Average daylight in May / Average sunshine in May - Leominster, MA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in May
Leominster, MA

Average sunshine days in May - Leominster, MA
  • Average sunshine days in May: 13.7 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in May
Leominster, MA

Average UV index in May - Leominster, MA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Leominster, MA

Average cloud cover in May - Leominster, MA
  • Average cloud cover in May: 48

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in May
Leominster, MA

Average visibility in May - Leominster, MA
  • Average visibility in May: 5mi

The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).

Leominster, Massachusetts, USA

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