May weather forecastCrystal Lake, CT
May
Weather in May
May, the last month of the spring in Crystal Lake, is an agreeable month, with an average temperature fluctuating between 48.6°F (9.2°C) and 68.4°F (20.2°C).Temperature
In May, the average high-temperature increases from a refreshing 56.3°F (13.5°C) in April to a pleasant 68.4°F (20.2°C). Throughout the month of May, the nighttime temperature dips to an average of 48.6°F (9.2°C).Humidity
In May, the average relative humidity is 75%.Rainfall
The wettest months are May through July, with an average 1.1" (28mm) of rainfall.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Crystal Lake aggregates 0.04" (1mm) of snow. In Crystal Lake, during the entire year, snow falls for 23.1 days and aggregates up to 4.69" (119mm) of snow.Daylight
The average length of the day in May in Crystal Lake is 14h and 35min.On the first day of May, sunrise is at 5:44 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:17 pm EDT.
Sunshine
The average sunshine in May is 8.3h.UV index
In Crystal Lake, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Take precautions. Light skin individuals may get burned 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Crystal Lake, CT
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in May: 48.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in May
Crystal Lake, 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
Crystal Lake, CT
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Crystal Lake, CT
- Average humidity in May: 75%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Crystal Lake, CT
- Average rainfall in May: 1.1"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in May
Crystal Lake, CT
- Average rainfall days in May: 11.5 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in May
Crystal Lake, CT
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Crystal Lake, CT
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Crystal Lake, CT
- Average daylight in May: 14h and 36min
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 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Crystal Lake, CT
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in May
Crystal Lake, 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
Crystal Lake, 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
Crystal Lake, CT
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
