May weather forecastOphiem, IL
May
Weather in May
May, the last month of the spring in Ophiem, is an agreeable month, with an average temperature fluctuating between 70.5°F (21.4°C) and 53.6°F (12°C).Temperature
Ophiem experiences a temperature shift with the start of May, with average high-temperatures moving from a moderate 59.2°F (15.1°C) in April to an agreeable 70.5°F (21.4°C). Throughout May, Ophiem witnesses a nighttime temperature average of 53.6°F (12°C).Humidity
The average relative humidity in May in Ophiem is 78%.Rainfall
May is the month with the most rainfall in Ophiem, Illinois. Rain falls for 18.2 days and accumulates 4.45" (113mm) of precipitation.Snowfall
In Ophiem, snow does not fall in May through September.Daylight
In Ophiem, the average length of the day in May is 14h and 31min.On the first day of the month, sunrise is at 5:57 am and sunset at 7:59 pm. On the last day of May, in Ophiem, sunrise is at 5:30 am and sunset at 8:27 pm CDT.
Sunshine
The average sunshine in May is 8.8h.UV index
In May, the average daily maximum UV index in Ophiem is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, an average UV index of 5 transforms into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ophiem, IL
- Average high temperature in May: 70.5°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 (28.4°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Ophiem, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Ophiem, 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
Ophiem, 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
Ophiem, IL
- Average rainfall in May: 4.45"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in May
Ophiem, IL
- Average rainfall days in May: 18.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).
Average snowfall in May
Ophiem, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Ophiem, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Ophiem, IL
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Ophiem, IL
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in May
Ophiem, IL
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Ophiem, IL
- Average cloud cover in May: 42
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
Ophiem, 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).





