May weather forecastHerod, IL
May
Weather in May
May, the last month of the spring in Herod, is a moderately hot month, with an average temperature ranging between min 58.1°F (14.5°C) and max 75.6°F (24.2°C).Temperature
Noticing a change, the average high-temperature during May moves from April's refreshing 66.4°F (19.1°C) to a warm 75.6°F (24.2°C). Throughout the month of May, Herod observes an average nighttime temperature of 58.1°F (14.5°C).Humidity
May is the most humid month, with an average relative humidity of 79%.Rainfall
In May, the rain falls for 18.5 days. Throughout May, 3.86" (98mm) of precipitation is accumulated. In Herod, during the entire year, the rain falls for 158.6 days and collects up to 36.02" (915mm) of precipitation.Snowfall
In Herod, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 13min.On the first day of May, sunrise is at 5:57 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:09 pm CDT.
Sunshine
In May, the average sunshine is 9.2h.UV index
The months with the highest UV index in Herod, Illinois, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 6 suggests these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Herod, IL
- Average high temperature in May: 75.6°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in May: 58.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in May
Herod, IL
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Herod, IL
- Average wind speed in May: 7.8mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in May
Herod, IL
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Herod, IL
- Average rainfall in May: 3.86"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in May
Herod, IL
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in May
Herod, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Herod, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.3 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
Herod, IL
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Herod, IL
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in May
Herod, IL
- 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 and December (UV index 2).
Average cloud cover in May
Herod, IL
- Average cloud cover in May: 38
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in May
Herod, 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).
