Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In Norwalk, the average high-temperature in May rises, from a cool 55.2°F (12.9°C) in April, to an enjoyable 65.8°F (18.8°C). In May, in Norwalk, Connecticut, the average low-temperature is a cool 52.7°F (11.5°C).Humidity
The months with the highest humidity in Norwalk are February, May and June, with an average relative humidity of 76%.Rainfall
In Norwalk, Connecticut, in May, during 17.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 166.3 rainfall days, and 37.87" (962mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Norwalk.Ocean temperature
In Norwalk, Connecticut, in May, the average water temperature is 52°F (11.1°C).Note: Being in 52°F (11.1°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
The average length of the day in May in Norwalk, Connecticut, is 14h and 30min.On the first day of the month, sunrise is at 5:50 am and sunset at 7:51 pm. On the last day of May, in Norwalk, sunrise is at 5:23 am and sunset at 8:19 pm EDT.
Sunshine
In Norwalk, the average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Norwalk in May?
What is the most humid month in Norwalk?
What is the average humidity in May in Norwalk?
How much does it rain in Norwalk in May?
When it does not snow in Norwalk?
Does it snow in Norwalk in May?
How cold is the water in May in Norwalk?
What is the average length of the day in May in Norwalk?
What time are sunrise and sunset in May in Norwalk?
How many hours of sunshine does Norwalk have in May?
How high is the UV index in May in Norwalk?
Average temperature in May
Norwalk, CT
- Average high temperature in May: 65.8°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 (35.8°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in May
Norwalk, 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
Norwalk, CT
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in May
Norwalk, CT
- Average humidity in May: 76%
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in May
Norwalk, CT
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.36").
Average rainfall days in May
Norwalk, CT
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Norwalk, CT
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Norwalk, CT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Norwalk, CT
- Average sea temperature in May: 51.9°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (39°F).
Average daylight in May /
Average sunshine in May
Norwalk, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Norwalk, CT
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in May
Norwalk, 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
Norwalk, CT
- Average cloud cover in May: 43
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Norwalk, 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).
Norwalk, Connecticut, USA
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