May weather forecast
Lake Ronkonkoma, NY

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Weather in May

The last month of the spring, May, is a refreshing month in Lake Ronkonkoma, New York, with an average temperature ranging between min 54.3°F (12.4°C) and max 61.2°F (16.2°C).

Temperature

The start of May signals a slight increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) in April to an enjoyable 61.2°F (16.2°C). In Lake Ronkonkoma, the nightly May temperatures experience a slight descent from daily highs to an average low of 54.3°F (12.4°C).

Humidity

The months with the highest humidity in Lake Ronkonkoma, New York, are May and June, with an average relative humidity of 78%.

Rainfall

In Lake Ronkonkoma, New York, in May, it is raining for 16.1 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, in Lake Ronkonkoma, 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

The average length of the day in May in Lake Ronkonkoma, New York, is 14h and 29min.
On the first day of May, sunrise is at 5:49 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:17 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

The average daily maximum UV index in May in Lake Ronkonkoma is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What are the temperatures in Lake Ronkonkoma in May?

Lake Ronkonkoma in May has an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 54.3°F (12.4°C).

What is the most humid month in Lake Ronkonkoma?

The months with the highest humidity in Lake Ronkonkoma, New York, are May and June, with an average relative humidity of 78%.

What is the average humidity in May in Lake Ronkonkoma?

The average relative humidity in May in Lake Ronkonkoma, New York, is 78%.

How much does it rain in Lake Ronkonkoma in May?

In Lake Ronkonkoma, New York, in May, during 16.1 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When does it start to snow in Lake Ronkonkoma?

May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

How many hours of daylight does Lake Ronkonkoma have in May?

The average day length in May in Lake Ronkonkoma is 14h and 29min.

When are sunrise and sunset in May in Lake Ronkonkoma?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 7:49 pm. On the last day of the month, in Lake Ronkonkoma, sunrise is at 5:23 am and sunset at 8:17 pm EDT.

How long on average sun shines in May in Lake Ronkonkoma?

The average sunshine duration in May in Lake Ronkonkoma is 8.9h.

How high is the UV index in May in Lake Ronkonkoma?

In Lake Ronkonkoma, New York, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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
Lake Ronkonkoma, NY

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).

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Average pressure in May
Lake Ronkonkoma, NY

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).

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Average wind speed in May
Lake Ronkonkoma, NY

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).

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Average humidity in May
Lake Ronkonkoma, NY

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%).

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Average rainfall in May
Lake Ronkonkoma, NY

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").

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Average rainfall days in May
Lake Ronkonkoma, NY

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).

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Average snowfall in May
Lake Ronkonkoma, NY

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").

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Average snowfall days in May
Lake Ronkonkoma, NY

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).

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Average daylight in May /
Average sunshine in May
Lake Ronkonkoma, NY

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).

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Average sunshine days in May
Lake Ronkonkoma, NY

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).

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Average UV index in May
Lake Ronkonkoma, NY

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).

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Average cloud cover in May
Lake Ronkonkoma, NY

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).

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Average visibility in May
Lake Ronkonkoma, NY

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).

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Lake Ronkonkoma, New York, USA

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