July weather forecastIslip Terrace, NY
July
Weather in July
July is a moderately hot summer month in Islip Terrace, New York, with an average temperature fluctuating between 79°F (26.1°C) and 71.8°F (22.1°C).Temperature
In Islip Terrace, July is the month with the highest recorded average temperatures, measuring a high of 79°F (26.1°C) and a low of 71.8°F (22.1°C).Humidity
In Islip Terrace, New York, the average relative humidity in July is 75%.Rainfall
The month with the most rainfall in Islip Terrace is July, when the rain falls for 17.9 days and typically aggregates up to 3.86" (98mm) of precipitation.Snowfall
In Islip Terrace, snow does not fall in April through September.Daylight
The average length of the day in July in Islip Terrace is 14h and 45min.On the first day of the month, sunrise is at 5:25 am and sunset at 8:27 pm. On the last day of July, in Islip Terrace, sunrise is at 5:49 am and sunset at 8:09 pm EDT.
Sunshine
With an average of 10.8h of sunshine, July has the most sunshine of the year in Islip Terrace.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during July leads to these advisories:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Islip Terrace, NY
- Average high temperature in July: 79°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in July: 71.8°F
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in July
Islip Terrace, 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
Islip Terrace, NY
- Average wind speed in July: 8.6mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in July
Islip Terrace, NY
- Average humidity in July: 75%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in July
Islip Terrace, NY
- Average rainfall in July: 3.86"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in July
Islip Terrace, NY
- Average rainfall days in July: 17.9 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in July
Islip Terrace, NY
- Average snowfall in July: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in July
Islip Terrace, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Islip Terrace, NY
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 0min).
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
Islip Terrace, NY
- Average sunshine days in July: 11.2 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in July
Islip Terrace, 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
Islip Terrace, 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
Islip Terrace, 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).
