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
May marks a rise in the average high-temperature, moving from April's enjoyable 63.1°F (17.3°C) to an agreeable 72.9°F (22.7°C). During the month of May, the temperature generally drops to a low average of 56.8°F (13.8°C).Humidity
In May, the average relative humidity in Palmer, Illinois, is 78%.Rainfall
In Palmer, Illinois, in May, during 17.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, in Palmer, there are 147.7 rainfall days, and 29.65" (753mm) of precipitation is accumulated.Snowfall
In Palmer, snow does not fall in May through October.Daylight
In Palmer, Illinois, the average length of the day in May is 14h and 22min.On the first day of May in Palmer, Illinois, sunrise is at 5:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:18 pm CDT.
Sunshine
In May, the average sunshine is 9.2h.UV index
In Palmer, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during May translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. To protect against the Sun's most potent rays, avoid direct exposure around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What is the usual temperature for Palmer in May?
What is the average humidity in May in Palmer?
How many days does it rain in May in Palmer?
When it does not snow in Palmer?
Does it snow in Palmer in May?
What is the average length of the day in May in Palmer?
When are sunrise and sunset in May in Palmer?
How many hours of sunshine does Palmer have in May?
What is the UV index reading in May in Palmer?
Average temperature in May
Palmer, IL
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Palmer, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Palmer, IL
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in May
Palmer, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Palmer, IL
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is April (3.58").
The driest months (with the least rainfall) are February and December (1.65").
Average rainfall days in May
Palmer, IL
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in May
Palmer, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Palmer, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.8 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
Palmer, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Palmer, IL
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (11 days).
Average UV index in May
Palmer, IL
- 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, November and December (UV index 2).
Average cloud cover in May
Palmer, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in May
Palmer, 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).
Palmer, Illinois, USA
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