Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Derby, the average high-temperature in April increases from a wintry 39.7°F (4.3°C) in March to a fresh 51.4°F (10.8°C). In April, the average low-temperature is 36.1°F (2.3°C).Humidity
In April, the average relative humidity in Derby is 79%.Rainfall
In Derby, in April, it is raining for 15.2 days, with typically 2.36" (60mm) of accumulated precipitation. In Derby, New York, during the entire year, the rain falls for 160.5 days and collects up to 24.17" (614mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Derby, New York. In April, in Derby, it is snowing for 3.8 days. Throughout April, 1.34" (34mm) of snow is accumulated. Throughout the year, there are 62.9 snowfall days, and 19.65" (499mm) of snow is accumulated.Daylight
In Derby, New York, the average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of April, sunrise is at 6:11 am and sunset at 8:14 pm EDT.
Sunshine
In April, the average sunshine is 7.3h.UV index
In Derby, New York, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in April in Derby?
What is the average humidity in April in Derby?
How many days does it rain in April in Derby?
How many days does it snow in April in Derby?
What is the average length of the day in April in Derby?
When is the sunrise / sunset in April in Derby?
How many hours of sunshine does Derby have in April?
What is the UV index reading in April in Derby?
Average temperature in April
Derby, NY
- Average high temperature in April: 51.4°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 April: 36.1°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 April
Derby, NY
- Average pressure in April: 29.97"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 April
Derby, NY
- Average wind speed in April: 9.8mph
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 April
Derby, NY
- Average humidity in April: 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 April
Derby, NY
- Average rainfall in April: 2.36"
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 April
Derby, NY
- Average rainfall days in April: 15.2 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 April
Derby, NY
- Average snowfall in April: 1.34"
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 April
Derby, NY
- Average snowfall days in April: 3.8 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 April /
Average sunshine in April
Derby, NY
- Average daylight in April: 13h and 25min
The month with the longest days is June (Average daylight: 15h and 16min).
The month with the shortest days is December (Average daylight: 9h and 7min).
- Average sunshine in April: 7h and 18min
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 April
Derby, NY
- Average sunshine days in April: 10.9 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 April
Derby, NY
- Average UV index in April: 3
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 April
Derby, NY
- Average cloud cover in April: 52
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 April
Derby, NY
- Average visibility in April: 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).
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