May weather forecastStamford, CT
May
Weather in May
May comes basked in warmth and welcoming brightness. Stamford experiences a marked increase in temperature, climbing up the Fahrenheit scale to reach an agreeable average of 65.8°F (18.8°C). However, it's worth noting that May also offers a considerable amount of rainfall. The sea, now warming up makes the coastline a popular spot among locals and visitors alike. Preceding the onset of Stamford's hottest season, May serves as the perfect blend of pleasant temperature and inviting daylight hours.Temperature
Observing a rise in May, the average high-temperature goes from April's moderate 55.4°F (13°C) to an enjoyable 65.8°F (18.8°C). The nighttime temperature, during May, averages of 53.1°F (11.7°C).Humidity
The months with the highest humidity are February, May, June and December, with an average relative humidity of 75%.Rainfall
In May, the rain falls for 17.2 days. Throughout May, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 164.1 rainfall days, and 37.95" (964mm) of precipitation is accumulated.Snowfall
In Stamford, snow does not fall in May through October.Ocean temperature
In May, the average ocean temperature is 51.4°F (10.8°C).Note: Navigating the 51.4°F (10.8°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In Stamford, the average length of the day in May 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, sunrise is at 5:24 am and sunset at 8:19 pm EDT.
Sunshine
In Stamford, the average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 5 during May translates into the following guidance:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Stamford, CT
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in May
Stamford, CT
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Stamford, 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 (6.6mph).
Average humidity in May
Stamford, CT
- Average humidity in May: 75%
The months with the highest relative humidity are February, May, June and December (75%).
The months with the lowest relative humidity are April, August and November (72%).
Average rainfall in May
Stamford, CT
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is July (4.25").
The driest months (with the least rainfall) are January and February (2.36").
Average rainfall days in May
Stamford, CT
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Stamford, CT
- Average snowfall in May: 0"
The months with the highest snowfall are February and March (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Stamford, CT
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in May
Stamford, CT
- Average sea temperature in May: 51.4°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in May /
Average sunshine in May
Stamford, CT
- Average daylight in May: 14h and 30min
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 42min
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
Stamford, 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 (10.7 days).
Average UV index in May
Stamford, 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
Stamford, CT
- Average cloud cover in May: 45
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Stamford, 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).
