June weather forecastLake Ronkonkoma, NY

June

Weather in June

The first month of the summer, June, is a pleasant month in Lake Ronkonkoma, New York, with an average temperature fluctuating between 70.7°F (21.5°C) and 63.5°F (17.5°C).

Temperature

Lake Ronkonkoma in June experiences an increase in the average high-temperature, moving from May's enjoyable 61.2°F (16.2°C) to an agreeable 70.7°F (21.5°C). Night temperatures in June exhibit a subtle decrease, settling at an average of 63.5°F (17.5°C).

Humidity

May and June, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Lake Ronkonkoma, in June, during 14.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 155.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.

Snowfall

April, June through September and November are months without snowfall.

Daylight

The month with the longest days in Lake Ronkonkoma is June, with an average of 15h and 6min of daylight.
On the first day of June, sunrise is at 5:22 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:28 pm EDT.

Sunshine

The average sunshine in June is 10h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In June, a regular UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in June, in Lake Ronkonkoma, is 70.7°F (21.5°C), while the average low-temperature is 63.5°F (17.5°C).

The months with the highest humidity are May and June, with an average relative humidity of 78%.

The average relative humidity in June is 78%.

In Lake Ronkonkoma, during June, the rain falls for 14.8 days and regularly aggregates up to 2.8" (71mm) of precipitation.

April, June through September and November are months without snowfall.

In June, it doesn't snow. May is the latest month when it typically snows.

June has the longest days of the year in Lake Ronkonkoma, with an average of 15h and 6min of daylight.

The average day length in June is 15h and 4min.

In June, on the first day of the month, sunrise is at 5:22 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:28 pm EDT.

The average sunshine duration in June is 10h.

The months with the highest UV index are June through August, with an average maximum UV index of 6.

In Lake Ronkonkoma, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Lake Ronkonkoma, NY

  • Average high temperature in June: 70.7°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 June: 63.5°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 June
Lake Ronkonkoma, NY

  • Average pressure in June: 29.93"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 June
Lake Ronkonkoma, NY

  • Average wind speed in June: 9.3mph

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 June
Lake Ronkonkoma, NY

  • Average humidity in June: 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 June
Lake Ronkonkoma, NY

  • Average rainfall in June: 2.8"

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 June
Lake Ronkonkoma, NY

  • Average rainfall days in June: 14.8 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 June
Lake Ronkonkoma, NY

  • Average snowfall in June: 0"

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 June
Lake Ronkonkoma, NY

  • Average snowfall days in June: 0 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 June /
Average sunshine in June
Lake Ronkonkoma, NY

  • Average daylight in June: 15h and 6min

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 June: 10h and 0min

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 June
Lake Ronkonkoma, NY

  • Average sunshine days in June: 12.8 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 June
Lake Ronkonkoma, NY

  • Average UV index in June: 6

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 June
Lake Ronkonkoma, NY

  • Average cloud cover in June: 33

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 June
Lake Ronkonkoma, NY

  • Average visibility in June: 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).