May weather forecast
Putnam, CT

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Weather in May

May, the last month of the spring in Putnam, is an enjoyable month, with an average temperature varying between 48.9°F (9.4°C) and 66.7°F (19.3°C).

Temperature

May brings a temperature increase, with average high-temperatures moving from April's mild 55.6°F (13.1°C) to a comfortable 66.7°F (19.3°C). Throughout May, Putnam's nights cool down to an average of 48.9°F (9.4°C).

Humidity

The average relative humidity in May is 76%.

Rainfall

In Putnam, in May, during 16.9 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 163 rainfall days, and 33.86" (860mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Putnam. May is the last month it regularly snows in Putnam. During 0.2 snowfall days, in May, Putnam aggregates 0.28" (7mm) of snow. In Putnam, during the entire year, snow falls for 30.6 days and aggregates up to 14.02" (356mm) of snow.

Daylight

In Putnam, the average length of the day in May is 14h and 34min.
On the first day of May in Putnam, sunrise is at 5:42 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:15 pm EDT.

Sunshine

In May, the average sunshine in Putnam is 8.2h.

UV index

In May, the average daily maximum UV index in Putnam is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Putnam in May?

In Putnam, 66.7°F (19.3°C) is the average high-temperature and 48.9°F (9.4°C) is the average low-temperature during May.

What is the average humidity in May in Putnam?

In Putnam, Connecticut, the average relative humidity in May is 76%.

How many days does it rain in May in Putnam?

In May, the rain falls for 16.9 days. Throughout May, 2.8" (71mm) of precipitation is accumulated.

What is the last month it snows in Putnam?

May is the last month it regularly snows in Putnam. During 0.2 snowfall days, in May, Putnam aggregates 0.28" (7mm) of snow.

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

The average day length in May in Putnam, Connecticut, is 14h and 34min.

When is the sunrise / sunset in May in Putnam?

On the first day of May in Putnam, Connecticut, sunrise is at 5:42 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:15 pm EDT.

How many hours of sunshine does Putnam have in May?

In May, the average sunshine duration in Putnam is 8.2h.

How high is the UV index in May in Putnam?

The average daily maximum UV index in May in Putnam 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
Putnam, CT

Average temperature in May - Putnam, CT
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Putnam, CT

Average pressure in May - Putnam, CT
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Putnam, CT

Average wind speed in May - Putnam, CT
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in May
Putnam, CT

Average humidity in May - Putnam, CT
  • Average humidity in May: 76%

The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in May
Putnam, CT

Average rainfall in May - Putnam, CT
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in May
Putnam, CT

Average rainfall days in May - Putnam, CT
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in May
Putnam, CT

Average snowfall in May - Putnam, CT
  • Average snowfall in May: 0.28"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Putnam, CT

Average snowfall days in May - Putnam, CT
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Putnam, CT

Average daylight in May / Average sunshine in May - Putnam, CT
  • 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: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Putnam, CT

Average sunshine days in May - Putnam, CT
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in May
Putnam, CT

Average UV index in May - Putnam, CT
  • 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
Putnam, CT

Average cloud cover in May - Putnam, CT
  • Average cloud cover in May: 48

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Putnam, CT

Average visibility in May - Putnam, CT
  • Average visibility in May: 5mi

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

Putnam, Connecticut, USA

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