July weather forecastIslandia, NY
July
Weather in July
July in Islandia, New York, is a warm summer month, with an average temperature ranging between max 77.9°F (25.5°C) and min 71.6°F (22°C).Temperature
The shift from June to July introduces a subtle increase in the average high-temperature, moving from an agreeable 70.7°F (21.5°C) to a moderately hot 77.9°F (25.5°C). Nights in July in Islandia exhibit a minor reduction to an average low temperature of 71.6°F (22°C).Humidity
In July, the average relative humidity in Islandia is 76%.Rainfall
In Islandia, in July, during 17.7 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In Islandia, during the entire year, the rain falls for 155.3 days and collects up to 34.84" (885mm) of precipitation.Snowfall
April, June through September and November are months without snowfall in Islandia.Daylight
In Islandia, the average length of the day in July is 14h and 46min.On the first day of the month, sunrise is at 5:25 am and sunset at 8:28 pm. On the last day of July, sunrise is at 5:48 am and sunset at 8:09 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.8h of sunshine.UV index
The months with the highest UV index in Islandia are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, an average UV index of 6 transforms into the following instructions:
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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Islandia, NY
- Average high temperature in July: 77.9°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 July: 71.6°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 July
Islandia, NY
- Average pressure in July: 29.96"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 July
Islandia, NY
- Average wind speed in July: 9mph
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 July
Islandia, NY
- Average humidity in July: 76%
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 July
Islandia, NY
- Average rainfall in July: 3.62"
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 July
Islandia, NY
- Average rainfall days in July: 17.7 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 July
Islandia, NY
- Average snowfall in July: 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 July
Islandia, NY
- Average snowfall days in July: 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 July /
Average sunshine in July
Islandia, NY
- Average daylight in July: 14h and 48min
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 July: 10h and 48min
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 July
Islandia, NY
- Average sunshine days in July: 11.3 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 July
Islandia, NY
- Average UV index in July: 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 July
Islandia, NY
- Average cloud cover in July: 28
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 July
Islandia, NY
- Average visibility in July: 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).
