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 Hallowell, the onset of May comes with an increased average high-temperature, moving from April's mild 60.6°F (15.9°C) to an agreeable 71.2°F (21.8°C). Throughout May, Hallowell records an average temperature of 53.6°F (12°C) at night.Humidity
In May, the average relative humidity is 76%.Rainfall
In Hallowell, Pennsylvania, in May, it is raining for 8.1 days, with typically 0.59" (15mm) of accumulated precipitation. In Hallowell, Pennsylvania, during the entire year, the rain falls for 83.7 days and collects up to 6.22" (158mm) 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, Hallowell aggregates 0.16" (4mm) of snow. Throughout the year, there are 12.6 snowfall days, and 1.73" (44mm) of snow is accumulated.Daylight
In Hallowell, 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
The average sunshine in May is 8.7h.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 threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hallowell in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows in Hallowell?
How many hours of daylight does Hallowell have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Hallowell have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Hallowell, PA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Hallowell, 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
Hallowell, PA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Hallowell, PA
- Average humidity in May: 76%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in May
Hallowell, PA
- Average rainfall in May: 0.59"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in May
Hallowell, PA
- Average rainfall days in May: 8.1 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in May
Hallowell, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Hallowell, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hallowell, 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 48min).
Average sunshine days in May
Hallowell, PA
- Average sunshine days in May: 19.6 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).
Average UV index in May
Hallowell, 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
Hallowell, PA
- Average cloud cover in May: 46
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
Hallowell, 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).
Hallowell, Pennsylvania, USA
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