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
Riley observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's enjoyable 64.9°F (18.3°C) to a pleasant 73.2°F (22.9°C). Riley, during May nights, observes an average temperature of 55°F (12.8°C).Humidity
The most humid month is May, with an average relative humidity of 74%.Rainfall
May is the month with the most rainfall. Rain falls for 14.3 days and accumulates 3.98" (101mm) of precipitation.Snowfall
In Riley, snow does not fall in May through September.Daylight
The average length of the day in May in Riley is 14h and 21min.On the first day of May, sunrise is at 6:27 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:47 pm CDT.
Sunshine
In Riley, the average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Riley in May?
What is the most humid month in Riley?
What is the average humidity in May in Riley?
What is the wettest month in Riley?
How much does it rain in Riley in May?
When it does not snow in Riley?
Does it snow in Riley in May?
How many hours of daylight does Riley have in May?
What time are sunrise and sunset in May in Riley?
How many hours of sunshine does Riley have in May?
How high is the UV index in May in Riley?
Average temperature in May
Riley, KS
- Average high temperature in May: 73.2°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in May
Riley, KS
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Riley, KS
- Average wind speed in May: 10.2mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in May
Riley, KS
- Average humidity in May: 74%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is October (64%).
Average rainfall in May
Riley, KS
- Average rainfall in May: 3.98"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in May
Riley, KS
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in May
Riley, KS
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Riley, KS
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.8 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
Riley, KS
- 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 30min).
- Average sunshine in May: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Riley, KS
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in May
Riley, KS
- Average UV index in May: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Riley, KS
- Average cloud cover in May: 37
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 22).
Average visibility in May
Riley, KS
- 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).
Riley, Kansas, USA
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