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 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
The start of May brings a subtle rise in the average high-temperature, moving from a fresh 52.3°F (11.3°C) in April to a comfortable 61.2°F (16.2°C). Lake Ronkonkoma records a slight downturn to an average a fresh 54.3°F (12.4°C) during the nights of May.Humidity
May and June, with an average relative humidity of 78%, are the most humid months.Rainfall
In Lake Ronkonkoma, in May, during 16.1 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 155.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
January through March, May, October and December are months with snowfall. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Lake Ronkonkoma, during the entire year, snow falls for 14.7 days and aggregates up to 6.14" (156mm) of snow.Daylight
In Lake Ronkonkoma, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 5:49 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:23 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, an average UV index of 5 transforms into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lake Ronkonkoma in May?
What are the most humid months?
What is the average humidity in May?
How much does it rain in May?
When does it start to snow in Lake Ronkonkoma?
How many hours of daylight does Lake Ronkonkoma have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May in Lake Ronkonkoma?
Average temperature in May
Lake Ronkonkoma, NY
- Average high temperature in May: 61.2°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in May: 54.3°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in May
Lake Ronkonkoma, NY
- 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
Lake Ronkonkoma, NY
- Average wind speed in May: 10.1mph
The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).
Average humidity in May
Lake Ronkonkoma, NY
- Average humidity in May: 78%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in May
Lake Ronkonkoma, NY
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in May
Lake Ronkonkoma, NY
- Average rainfall days in May: 16.1 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
Lake Ronkonkoma, NY
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").
Average snowfall days in May
Lake Ronkonkoma, NY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lake Ronkonkoma, NY
- 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Lake Ronkonkoma, NY
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in May
Lake Ronkonkoma, NY
- 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 and December (UV index 2).
Average cloud cover in May
Lake Ronkonkoma, NY
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Lake Ronkonkoma, NY
- 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).
Lake Ronkonkoma, New York, USA
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