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
With the onset of May, the average high-temperature slightly shifts from April's moderate 59.2°F (15.1°C) to an agreeable 70.3°F (21.3°C). During May nights, Castle Junction witnesses a consistent average temperature of 53.6°F (12°C).Humidity
In Castle Junction, Illinois, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall in Castle Junction. Rain falls for 16.5 days and accumulates 3.31" (84mm) of precipitation.Snowfall
In Castle Junction, snow does not fall in May through September.Daylight
In May, the average length of the day in Castle Junction is 14h and 32min.On the first day of May, sunrise is at 5:58 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:29 pm CDT.
Sunshine
In Castle Junction, the average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May in Castle Junction is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the average May temperature in Castle Junction?
What is the average humidity in May in Castle Junction?
What is the wettest month in Castle Junction?
How many days does it rain in May in Castle Junction?
When it does not snow in Castle Junction?
Does it snow in Castle Junction in May?
How many hours of daylight does Castle Junction have in May?
When is the sunrise / sunset in May in Castle Junction?
How many hours of sunshine does Castle Junction have in May?
What is the UV index reading in May in Castle Junction?
Average temperature in May
Castle Junction, IL
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Castle Junction, IL
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Castle Junction, IL
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in May
Castle Junction, IL
- Average humidity in May: 78%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Castle Junction, IL
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in May
Castle Junction, IL
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in May
Castle Junction, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Castle Junction, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.3 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
Castle Junction, IL
- 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 12min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Castle Junction, IL
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Castle Junction, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Castle Junction, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Castle Junction, 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).
Castle Junction, Illinois, USA
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