Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
In June, the meteorological conditions change with the average high-temperature moving from a comfortable 61.2°F (16.2°C) in May to a pleasant 70.7°F (21.5°C). Holtsville documents an average low-temperature of 63.5°F (17.5°C) for the nights of June.Humidity
The months with the highest humidity are May and June, with an average relative humidity of 78%.Rainfall
In June, the rain falls for 14.8 days. Throughout June, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 155.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
In Holtsville, snow does not fall in April, June through September and November.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:22 am and sunset at 8:17 pm. On the last day of June, sunrise is at 5:24 am and sunset at 8:27 pm EDT.
Sunshine
The average sunshine in June is 10h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In June, the maximum UV index of 6 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures?
What is the most humid month?
What is the average humidity in June?
How much does it rain in June?
When it does not snow?
Does it snow in June?
When are the longest days?
How many hours of daylight does Holtsville have in June?
What time are sunrise and sunset in June?
How many hours of sunshine does Holtsville have in June?
What is the month with the highest UV index?
What is the UV index reading in June?
Average temperature in June
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, NY
- Average daylight in June: 15h and 1min
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
Holtsville, 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
Holtsville, 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
Holtsville, 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
Holtsville, 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).
Holtsville, New York, USA
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