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
Donegal, Pennsylvania, in May shows a temperature shift, moving from an average high of a mild 57.9°F (14.4°C) in April to a pleasant 69.6°F (20.9°C). Donegal's temperature tends to fall to an average low of 49.6°F (9.8°C) during the nights of May.Humidity
In Donegal, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 22.6 days and typically aggregates up to 3.62" (92mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Donegal aggregates 0.31" (8mm) of snow. Throughout the year, in Donegal, there are 63.4 snowfall days, and 34.17" (868mm) of snow is accumulated.Daylight
In Donegal, the average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:40 pm EDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Donegal, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In May, a regular UV index of 5 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
What is the wettest month in Donegal?
How much does it rain in May?
What is the last month it snows in Donegal?
What is the average length of the day in May?
When is the sunrise / sunset in May in Donegal?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Donegal, PA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in May
Donegal, 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
Donegal, PA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Donegal, PA
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in May
Donegal, PA
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in May
Donegal, PA
- Average rainfall days in May: 22.6 days
The month with the highest number of rainy days is May (22.6 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Donegal, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (7.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Donegal, PA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Donegal, 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 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Donegal, PA
- Average sunshine days in May: 7.4 days
The month with the most sunshine days is November (14.6 days).
The month with the least sunshine days is May (7.4 days).
Average UV index in May
Donegal, PA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Donegal, PA
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Donegal, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Donegal, Pennsylvania, USA
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