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 transition from April to May brings a temperature rise, with average high-temperatures increasing from a refreshing 61°F (16.1°C) to an agreeable 71.2°F (21.8°C). An average minimum temperature of 54°F (12.2°C) marks the month of May.Humidity
In May, the average relative humidity in Altor, Pennsylvania, is 78%.Rainfall
In Altor, in May, it is raining for 14 days, with typically 1.46" (37mm) of accumulated precipitation. In Altor, during the entire year, the rain falls for 128.5 days and collects up to 14.92" (379mm) 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, Altor aggregates 0.08" (2mm) of snow. Throughout the year, in Altor, there are 18.1 snowfall days, and 5.43" (138mm) of snow is accumulated.Daylight
In Altor, the average length of the day in May is 14h and 24min.On the first day of May, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:24 pm EDT.
Sunshine
In Altor, the average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 during May leads to these advisories:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in May in Altor?
What is the average humidity in May in Altor?
How many days does it rain in May in Altor?
What is the last month it snows in Altor?
What is the average length of the day in May in Altor?
When are sunrise and sunset in May in Altor?
How long on average sun shines in May in Altor?
What is the month with the highest UV index in Altor?
What is the UV index reading in May in Altor?
Average temperature in May
Altor, PA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in May
Altor, 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
Altor, PA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Altor, PA
- Average humidity in May: 78%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Altor, PA
- Average rainfall in May: 1.46"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Altor, PA
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in May
Altor, PA
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Altor, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.5 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
Altor, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Altor, PA
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in May
Altor, 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
Altor, PA
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Altor, 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).
Altor, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
