May weather forecastOlney, MO
May
Weather in May
May, the last month of the spring in Olney, is a moderately hot month, with an average temperature varying between 74.7°F (23.7°C) and 55.9°F (13.3°C).Temperature
The shift from April to May sees an increase in the average high-temperature, transitioning from a refreshing 64.9°F (18.3°C) to a warm 74.7°F (23.7°C). The low-temperature in Olney averages to a moderate 55.9°F (13.3°C) during the nights of May.Humidity
May is the most humid month in Olney, with an average relative humidity of 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.3 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
In Olney, Missouri, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 20min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:58 pm. On the last day of May, in Olney, Missouri, sunrise is at 5:40 am and sunset at 8:24 pm CDT.
Sunshine
In Olney, the average sunshine in May is 9.1h.UV index
In Olney, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in May translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Olney, MO
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Olney, MO
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Olney, MO
- Average wind speed in May: 7.5mph
The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Olney, MO
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Olney, MO
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in May
Olney, MO
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in May
Olney, MO
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Olney, MO
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5.9 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
Olney, MO
- Average daylight in May: 14h and 18min
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 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Olney, MO
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in May
Olney, MO
- 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
Olney, MO
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Olney, MO
- 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).





