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
In Mackeyville, stepping into May brings a temperature increase, moving up from April's mild 56.1°F (13.4°C) to an agreeable 68.5°F (20.3°C). An average nighttime temperature of 47.8°F (8.8°C) is noted during the month of May.Humidity
In Mackeyville, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.8 days and typically aggregates up to 3.74" (95mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Mackeyville aggregates 0.35" (9mm) of snow. Throughout the year, there are 49.1 snowfall days, and 25.55" (649mm) of snow is accumulated.Daylight
In Mackeyville, the average length of the day in May is 14h and 30min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:07 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:35 pm EDT.
Sunshine
The average sunshine in May is 7.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mackeyville in May?
What is the average humidity in May in Mackeyville?
What is the rainiest month?
How much does it rain in May?
What is the last month it snows in Mackeyville?
How many hours of daylight does Mackeyville have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Mackeyville, PA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in May
Mackeyville, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Mackeyville, PA
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Mackeyville, PA
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall in May
Mackeyville, PA
- Average rainfall in May: 3.74"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in May
Mackeyville, PA
- Average rainfall days in May: 19.8 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in May
Mackeyville, PA
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (7.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mackeyville, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mackeyville, PA
- Average daylight in May: 14h and 3min
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 May: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Mackeyville, PA
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in May
Mackeyville, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Mackeyville, PA
- Average cloud cover in May: 53
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in May
Mackeyville, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Mackeyville, Pennsylvania, USA
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