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
Gwynedd Valley experiences a temperature shift with the start of May, with average high-temperatures moving from a mild 60.4°F (15.8°C) in April to an agreeable 71.2°F (21.8°C). Nighttime temperature dips to a mean of 53.2°F (11.8°C) during May.Humidity
In Gwynedd Valley, the average relative humidity in May is 76%.Rainfall
In Gwynedd Valley, Pennsylvania, during May, the rain falls for 13.1 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Gwynedd Valley, during the entire year, the rain falls for 116.6 days and collects up to 10.63" (270mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Gwynedd Valley aggregates 0.2" (5mm) of snow. In Gwynedd Valley, during the entire year, snow falls for 14.8 days and aggregates up to 3.5" (89mm) of snow.Daylight
The average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:23 pm EDT.
Sunshine
In Gwynedd Valley, the average sunshine in May is 8.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 6 in May suggests the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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 in Gwynedd Valley?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Gwynedd Valley have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Gwynedd Valley have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Gwynedd Valley, PA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Gwynedd Valley, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Gwynedd Valley, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Gwynedd Valley, PA
- Average humidity in May: 76%
The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in May
Gwynedd Valley, PA
- Average rainfall in May: 1.02"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in May
Gwynedd Valley, PA
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in May
Gwynedd Valley, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Gwynedd Valley, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Gwynedd Valley, 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: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Gwynedd Valley, PA
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in May
Gwynedd Valley, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Gwynedd Valley, PA
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Gwynedd Valley, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Gwynedd Valley, Pennsylvania, USA
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