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
In Streator, the average high-temperature in May increases from a mild 59.4°F (15.2°C) in April to an agreeable 71.1°F (21.7°C). The average nighttime temperature in Streator lowers to a fresh 54°F (12.2°C) throughout May.Humidity
The average relative humidity in May in Streator is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.1 days and accumulates 3.39" (86mm) of precipitation.Snowfall
In Streator, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 30min.On the first day of May in Streator, Illinois, sunrise is at 5:51 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:21 pm CDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
In Streator, Illinois, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in May leads to these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the temperature in May in Streator?
What is the average humidity in May in Streator?
What is the wettest month in Streator?
How much does it rain in Streator in May?
When it does not snow in Streator?
Does it snow in Streator in May?
What is the average length of the day in May in Streator?
When are sunrise and sunset in May in Streator?
How long on average sun shines in May in Streator?
What is the UV index reading in May in Streator?
Average temperature in May
Streator, IL
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in May
Streator, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Streator, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Streator, IL
- Average humidity in May: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Streator, IL
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in May
Streator, IL
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in May
Streator, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Streator, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.8 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
Streator, 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 18min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Streator, IL
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in May
Streator, IL
- 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 and December (UV index 1).
Average cloud cover in May
Streator, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Streator, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Streator, Illinois, USA
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