Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July is the warmest month, exhibiting average temperatures of 77.2°F (25.1°C) at the peak and 61.3°F (16.3°C) at the base.Humidity
The average relative humidity in July is 79%.Rainfall
The month with the most rainfall is July, when the rain falls for 18.1 days and typically aggregates up to 2.52" (64mm) of precipitation.Snowfall
In Derby, snow does not fall in June through September.Daylight
In July, the average length of the day is 14h and 57min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:57 pm. On the last day of July, in Derby, sunrise is at 6:07 am and sunset at 8:37 pm EDT.
Sunshine
In July, the average sunshine is 10.3h.UV index
With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 6 in July leads to these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest?
What is the average July temperature?
What is the average humidity in July?
What is the rainiest month?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Derby have in July?
When are sunrise and sunset in July?
How many hours of sunshine does Derby have in July?
What is the month with the highest UV index?
What is the UV index reading in July?
Average temperature in July
Derby, NY
- Average high temperature in July: 77.2°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in July: 61.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in July
Derby, 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
Derby, NY
- Average wind speed in July: 6.9mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in July
Derby, NY
- Average humidity in July: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in July
Derby, NY
- Average rainfall in July: 2.52"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in July
Derby, NY
- Average rainfall days in July: 18.1 days
The months with the highest number of rainy days are July and October (18.1 days).
The month with the least rainy days is February (7 days).
Average snowfall in July
Derby, NY
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Derby, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Derby, NY
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in July
Derby, NY
- Average sunshine days in July: 10.8 days
The month with the most sunshine days is March (13 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in July
Derby, NY
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Derby, NY
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in July
Derby, NY
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Derby, New York, USA
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