Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
New Derry's transition into May is marked by a rise in the average high-temperature, advancing from a mild 59°F (15°C) in April to a pleasant 70.2°F (21.2°C). During May, New Derry sees a mean low-temperature of 49.6°F (9.8°C).Humidity
In New Derry, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall in New Derry. Rain falls for 20.4 days and accumulates 3.03" (77mm) of precipitation.Snowfall
In New Derry, snow does not fall in May through September.Daylight
In May, the average length of the day in New Derry is 14h and 26min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:40 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
In May, the average daily maximum UV index in New Derry is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take precautions - Protection against sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the wettest month?
How much does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does New Derry have in May?
What is the UV index reading in May?
Average temperature in May
New Derry, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
New Derry, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
New Derry, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
New Derry, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in May
New Derry, PA
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in May
New Derry, PA
- Average rainfall days in May: 20.4 days
The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in May
New Derry, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
New Derry, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
New Derry, PA
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
New Derry, PA
- Average sunshine days in May: 8.8 days
The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is January (7 days).
Average UV index in May
New Derry, PA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
New Derry, PA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
New Derry, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).
New Derry, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location