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
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a fresh 55°F (12.8°C) in April to a comfortable 67.5°F (19.7°C). In Exeter, May nights cool down to an average of 47.8°F (8.8°C).Humidity
The average relative humidity in May is 79%.Rainfall
In May, the rain falls for 18.3 days. Throughout May, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 162.1 rainfall days, and 24.53" (623mm) of precipitation is accumulated.Snowfall
Months with snowfall in Exeter are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Exeter aggregates 0.2" (5mm) of snow. Throughout the year, there are 49.4 snowfall days, and 19.92" (506mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 31min.On the first day of May, sunrise is at 5:59 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:29 pm EDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during May translates into the following guidance:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. 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 are May temperatures?
What is the average humidity in May in Exeter?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Exeter have in May?
When is the sunrise / sunset in May in Exeter?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Exeter, PA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in May
Exeter, 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
Exeter, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Exeter, PA
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in May
Exeter, PA
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in May
Exeter, PA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in May
Exeter, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Exeter, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Exeter, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in May
Exeter, PA
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Exeter, 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
Exeter, PA
- Average cloud cover in May: 49
The months with the most cloud cover are January, February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in May
Exeter, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Exeter, Pennsylvania, USA
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