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
River Forest's transition into May sees a rise in the average high-temperature, advancing from a moderate 60.4°F (15.8°C) in April to an agreeable 71.4°F (21.9°C). In the month of May, an average of 55°F (12.8°C) marks the low-temperature in River Forest.Humidity
In River Forest, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 17.6 days and accumulates 2.68" (68mm) of precipitation.Snowfall
In River Forest, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:41 am and sunset at 8:38 pm. On the last day of May, in River Forest, sunrise is at 6:15 am and sunset at 9:05 pm EDT.
Sunshine
In River Forest, the average sunshine in May is 8.6h.UV index
In River Forest, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What is the average May temperature in River Forest?
What is the average humidity in May in River Forest?
What is the rainiest month in River Forest?
How much does it rain in River Forest in May?
When it does not snow in River Forest?
Does it snow in River Forest in May?
How many hours of daylight does River Forest have in May?
When are sunrise and sunset in May in River Forest?
How many hours of sunshine does River Forest have in May?
How high is the UV index in May in River Forest?
Average temperature in May
River Forest, IN
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in May
River Forest, IN
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
River Forest, IN
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
River Forest, IN
- Average humidity in May: 78%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
River Forest, IN
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").
Average rainfall days in May
River Forest, IN
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in May
River Forest, IN
- Average snowfall in May: 0"
The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
River Forest, IN
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
River Forest, IN
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
River Forest, IN
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
River Forest, IN
- 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, October, November and December (UV index 2).
Average cloud cover in May
River Forest, IN
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).
Average visibility in May
River Forest, IN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
River Forest, Indiana, USA
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