May weather forecast
Westfield, MA

Share

Weather in May

The weather in May is marked by the city basking in more warmth and sunshine. The snow has completely melted away, and the city gets enveloped in the freshness and beauty of spring. The average high temperature noticeably jumps to 67.6°F (19.8°C), accompanying a spell of fine weather. Park-going and picnicking become habitual, and the city is alive with a variety of outdoor events.

Temperature

Westfield's weather in May presents a rise in the average high-temperature, moving from a refreshing 55.9°F (13.3°C) in April to a comfortable 67.6°F (19.8°C). Westfield reports an average nighttime low-temperature of 47.8°F (8.8°C) in May.

Humidity

The average relative humidity in May in Westfield is 75%.

Rainfall

In Westfield, in May, it is raining for 17.4 days, with typically 2.87" (73mm) of accumulated precipitation. In Westfield, during the entire year, the rain falls for 169.1 days and collects up to 32.56" (827mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Westfield. During 0.2 snowfall days, in May, Westfield aggregates 0.24" (6mm) of snow. In Westfield, during the entire year, snow falls for 37.4 days and aggregates up to 21.77" (553mm) of snow.

Daylight

The average length of the day in May is 14h and 35min.
On the first day of the month, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of May, in Westfield, sunrise is at 5:17 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index in Westfield is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
[Resources]

Frequently asked questions

What is the usual temperature for Westfield in May?

Westfield in May has an average high-temperature of 67.6°F (19.8°C) and an average low-temperature of 47.8°F (8.8°C).

What is the average humidity in May in Westfield?

In May, the average relative humidity in Westfield, Massachusetts, is 75%.

How many days does it rain in May in Westfield?

In Westfield, during May, the rain falls for 17.4 days and regularly aggregates up to 2.87" (73mm) of precipitation.

What is the last month it snows in Westfield?

May is the last month it regularly snows in Westfield, Massachusetts. During 0.2 snowfall days, in May, Westfield aggregates 0.24" (6mm) of snow.

What is the average length of the day in May in Westfield?

In Westfield, the average day length in May is 14h and 35min.

What time are sunrise and sunset in May in Westfield?

In May, on the first day of the month, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of the month, in Westfield, sunrise is at 5:17 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Westfield have in May?

In May, the average sunshine duration in Westfield is 8.5h.

How high is the UV index in May in Westfield?

In May, the average daily maximum UV index in Westfield is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Westfield, MA

Average temperature in May - Westfield, MA
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 47.8°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).

[Resources]

Average pressure in May
Westfield, MA

Average pressure in May - Westfield, 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).

[Resources]

Average wind speed in May
Westfield, MA

Average wind speed in May - Westfield, MA
  • Average wind speed in May: 6.4mph

The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in May
Westfield, MA

Average humidity in May - Westfield, MA
  • Average humidity in May: 75%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).

[Resources]

Average rainfall in May
Westfield, MA

Average rainfall in May - Westfield, MA
  • Average rainfall in May: 2.87"

The wettest months (with the highest rainfall) are October and December (3.27").
The driest month (with the least rainfall) is September (2.01").

[Resources]

Average rainfall days in May
Westfield, MA

Average rainfall days in May - Westfield, MA
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (8.9 days).

[Resources]

Average snowfall in May
Westfield, MA

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

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Westfield, MA

Average snowfall days in May - Westfield, MA
  • Average snowfall days in May: 0.2 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).

[Resources]

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

Average daylight in May / Average sunshine in May - Westfield, 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 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

[Resources]

Average sunshine days in May
Westfield, MA

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

The month with the most sunshine days is January (16.2 days).
The month with the least sunshine days is June (10.3 days).

[Resources]

Average UV index in May
Westfield, MA

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

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

[Resources]

Average cloud cover in May
Westfield, MA

Average cloud cover in May - Westfield, MA
  • Average cloud cover in May: 46

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

[Resources]

Average visibility in May
Westfield, MA

Average visibility in May - Westfield, 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).

[Resources]

Westfield, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location