July weather forecastSmithtown, NY
July
Weather in July
July is a warm summer month in Smithtown, New York, with an average temperature varying between 71.2°F (21.8°C) and 79.3°F (26.3°C).Temperature
Smithtown records the warmest temperatures in July, averaging a high of 79.3°F (26.3°C) and a low of 71.2°F (21.8°C).Humidity
The average relative humidity in July is 75%.Rainfall
July is the month with the most rainfall. Rain falls for 17.4 days and accumulates 3.94" (100mm) of precipitation.Snowfall
In Smithtown, snow does not fall in April through October.Daylight
In Smithtown, the average length of the day in July is 14h and 46min.On the first day of July, sunrise is at 5:25 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:48 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.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 hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during July translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Smithtown, NY
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in July: 71.2°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in July
Smithtown, NY
- Average pressure in July: 29.95"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
Smithtown, NY
- Average wind speed in July: 8.3mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in July
Smithtown, NY
- Average humidity in July: 75%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in July
Smithtown, NY
- Average rainfall in July: 3.94"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in July
Smithtown, NY
- Average rainfall days in July: 17.4 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in July
Smithtown, NY
- Average snowfall in July: 0"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Smithtown, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (4.8 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
Smithtown, 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
Smithtown, NY
- Average sunshine days in July: 11.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in July
Smithtown, 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
Smithtown, NY
- Average cloud cover in July: 29
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Smithtown, 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).
