May weather forecastJoliett, PA
May
Weather in May
May, the last month of the spring in Joliett, is an agreeable month, with an average temperature ranging between max 68.5°F (20.3°C) and min 50.2°F (10.1°C).Temperature
With the onset of May, Joliett sees a temperature rise, with the average high-temperature moving from April's mild 58.1°F (14.5°C) to an agreeable 68.5°F (20.3°C). An average minimum temperature of 50.2°F (10.1°C) is recorded during the month of May.Humidity
In May, the average relative humidity is 81%.Rainfall
In Joliett, in May, it is raining for 15.4 days, with typically 1.61" (41mm) of accumulated precipitation. In Joliett, during the entire year, the rain falls for 133.5 days and collects up to 15.16" (385mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Joliett aggregates 0.04" (1mm) of snow. Throughout the year, there are 23.2 snowfall days, and 5.67" (144mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 28min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:30 pm EDT.
Sunshine
In Joliett, the average sunshine in May is 8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Joliett, PA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 50.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
Joliett, 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 (29.94"Hg).
Average wind speed in May
Joliett, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Joliett, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in May
Joliett, PA
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in May
Joliett, PA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in May
Joliett, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Joliett, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Joliett, PA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Joliett, PA
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in May
Joliett, PA
- Average UV index in May: 5
The months with the highest UV index are June and July (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
Joliett, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Joliett, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, June, November and December (6mi).
The months with the lowest visibility are February, May, July, August, September and October (5mi).
