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 arrival of May brings an increase in high-temperatures, moving from a refreshing 61.2°F (16.2°C) in April to an agreeable 71.1°F (21.7°C). Pontoosuc experiences a consistent average temperature of 54.3°F (12.4°C) throughout the nights in May.Humidity
The average relative humidity in May in Pontoosuc, Illinois, is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 14.4 days and typically aggregates up to 1.46" (37mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Pontoosuc, the average length of the day in May is 14h and 28min.On the first day of May in Pontoosuc, Illinois, sunrise is at 6:02 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:29 pm CDT.
Sunshine
The average sunshine in May is 9h.UV index
The average daily maximum UV index in May in Pontoosuc is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 5 in May leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the temperature in May in Pontoosuc?
What is the average humidity in May in Pontoosuc?
What is the rainiest month in Pontoosuc?
How much does it rain in Pontoosuc in May?
When it does not snow in Pontoosuc?
Does it snow in Pontoosuc in May?
How many hours of daylight does Pontoosuc have in May?
What time are sunrise and sunset in May in Pontoosuc?
How many hours of sunshine does Pontoosuc have in May?
How high is the UV index in May in Pontoosuc?
Average temperature in May
Pontoosuc, IL
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in May: 54.3°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Pontoosuc, IL
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Pontoosuc, IL
- Average wind speed in May: 8.7mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in May
Pontoosuc, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Pontoosuc, IL
- Average rainfall in May: 1.46"
The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in May
Pontoosuc, IL
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in May
Pontoosuc, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Pontoosuc, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Pontoosuc, IL
- Average daylight in May: 14h and 3min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Pontoosuc, IL
- Average sunshine days in May: 14 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).
Average UV index in May
Pontoosuc, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Pontoosuc, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).
Average visibility in May
Pontoosuc, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Pontoosuc, Illinois, USA
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