May weather forecast
Fairfield, CT

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Weather in May

Fairfield, Connecticut, fully embraces the call of Spring in May. With the winter chill a distant memory, the city glistens under the warm rays, bringing vibrance and color. Rainfall is common, contributing to the lushness that envelops the environment, awakening the diverse flora. Quieter winds and a drop in snowfall to nonexistence make May an ideal time for outdoor activities. By the end of May, Fairfield, Connecticut prepares itself for the impending summer heat with the highest rise in temperatures to 64.9°F (18.3°C) in May.

Temperature

May signals a shift in the average high-temperature, moving from April's cool 54.7°F (12.6°C) to a comfortable 64.9°F (18.3°C). An average low-temperature of 52.5°F (11.4°C) is anticipated throughout the nights during May.

Humidity

May and June, with an average relative humidity of 76%, are the most humid months in Fairfield, Connecticut.

Rainfall

In Fairfield, in May, it is raining for 17.3 days, with typically 3.03" (77mm) of accumulated precipitation. In Fairfield, Connecticut, during the entire year, the rain falls for 170.1 days and collects up to 37.76" (959mm) of precipitation.

Snowfall

May through October are months without snowfall in Fairfield.

Daylight

In May, the average length of the day in Fairfield is 14h and 31min.
On the first day of May, sunrise is at 5:49 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:18 pm EDT.

Sunshine

In May, the average sunshine in Fairfield is 8.8h.

UV index

In May, the average daily maximum UV index in Fairfield is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Fairfield?

In May, the average high-temperature and low-temperature in Fairfield, Connecticut, are 64.9°F (18.3°C) and 52.5°F (11.4°C) respectively.

What is the most humid month in Fairfield?

The months with the highest humidity are May and June, with an average relative humidity of 76%.

What is the average humidity in May in Fairfield?

The average relative humidity in May in Fairfield is 76%.

How much does it rain in Fairfield in May?

In May, in Fairfield, Connecticut, the rain falls for 17.3 days. Throughout May, 3.03" (77mm) of precipitation is accumulated.

When it does not snow in Fairfield?

May through October are months without snowfall.

Does it snow in Fairfield in May?

In May, it doesn't snow. April is the latest month when it typically snows.

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

The average day length in May is 14h and 31min.

When are sunrise and sunset in May in Fairfield?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 7:50 pm. On the last day of the month, in Fairfield, sunrise is at 5:22 am and sunset at 8:18 pm EDT.

How many hours of sunshine does Fairfield have in May?

The average sunshine duration in May in Fairfield is 8.8h.

What is the UV index reading in May in Fairfield?

In Fairfield, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Fairfield, CT

Average temperature in May - Fairfield, CT
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 52.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in May
Fairfield, CT

Average pressure in May - Fairfield, CT
  • Average pressure in May: 30.01"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
Fairfield, CT

Average wind speed in May - Fairfield, CT
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in May
Fairfield, CT

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

The months with the highest relative humidity are May and June (76%).
The months with the lowest relative humidity are April and November (72%).

Average rainfall in May
Fairfield, CT

Average rainfall in May - Fairfield, CT
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.48").

Average rainfall days in May
Fairfield, CT

Average rainfall days in May - Fairfield, CT
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in May
Fairfield, CT

Average snowfall in May - Fairfield, CT
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Fairfield, CT

Average snowfall days in May - Fairfield, CT
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Fairfield, CT
  • Average daylight in May: 14h and 3min

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

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in May
Fairfield, CT

Average sunshine days in May - Fairfield, CT
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in May
Fairfield, CT

Average UV index in May - Fairfield, 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
Fairfield, CT

Average cloud cover in May - Fairfield, CT
  • Average cloud cover in May: 43

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Fairfield, CT

Average visibility in May - Fairfield, CT
  • Average visibility in May: 6mi

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

Fairfield, Connecticut, USA

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