May weather forecast
Otis, MA

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Weather in May

May, the last month of the spring in Otis, is a comfortable month, with an average temperature ranging between max 65.8°F (18.8°C) and min 46.8°F (8.2°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a cool 53.6°F (12°C) in April to a refreshing 65.8°F (18.8°C). Otis experiences a nighttime temperature average of 46.8°F (8.2°C) during May.

Humidity

In Otis, the average relative humidity in May is 77%.

Rainfall

In Otis, during May, the rain falls for 18.1 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Otis, during the entire year, the rain falls for 166.5 days and collects up to 36.97" (939mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Otis aggregates 0.24" (6mm) of snow. In Otis, during the entire year, snow falls for 61.5 days and aggregates up to 38.74" (984mm) of snow.

Daylight

In May, the average length of the day is 14h and 36min.
On the first day of May, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:21 pm EDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

In Otis, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 4 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Boost your sun resistance with garments that are densely woven yet spacious. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jun 4, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are May temperatures?

The average high-temperature and low-temperature during May are 65.8°F (18.8°C) and 46.8°F (8.2°C) respectively.

What is the average humidity in May?

In May, the average relative humidity is 77%.

How many days does it rain in May?

In Otis, during May, the rain falls for 18.1 days and regularly aggregates up to 3.27" (83mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Otis aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 36min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:21 pm EDT.

How many hours of sunshine does Otis have in May?

In May, the average sunshine duration is 8.1h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Otis, MA

Average temperature in May - Otis, MA
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 46.8°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

Average pressure in May
Otis, MA

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Otis, MA

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

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Otis, MA

Average humidity in May - Otis, MA
  • Average humidity in May: 77%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).

Average rainfall in May
Otis, MA

Average rainfall in May - Otis, MA
  • Average rainfall in May: 3.27"

The wettest month (with the highest rainfall) is December (3.62").
The driest month (with the least rainfall) is September (2.52").

Average rainfall days in May
Otis, MA

Average rainfall days in May - Otis, MA
  • Average rainfall days in May: 18.1 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in May
Otis, MA

Average snowfall in May - Otis, MA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (9.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Otis, MA

Average snowfall days in May - Otis, MA
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in May
Otis, MA

Average sunshine days in May - Otis, MA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in May
Otis, MA

Average UV index in May - Otis, MA
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Otis, MA

Average cloud cover in May - Otis, MA
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in May
Otis, MA

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

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

Otis, Massachusetts, USA

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