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
O'Neill's May weather brings a rise in high-temperatures, moving from a fresh 55°F (12.8°C) in April to an enjoyable 66.7°F (19.3°C). In O'Neill, the May nights cool down to an average low of 50°F (10°C).Humidity
In O'Neill, the average relative humidity in May is 81%.Rainfall
The months with the most rainfall are May and June, with an average 3.54" (90mm) of precipitation.Snowfall
May through September are months without snowfall in O'Neill, Iowa.Daylight
In May, the average length of the day in O'Neill is 14h and 38min.On the first day of May in O'Neill, sunrise is at 5:56 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:34 pm CDT.
Sunshine
The average sunshine in May in O'Neill is 8.2h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in May in O'Neill?
What is the average humidity in May in O'Neill?
What is the wettest month in O'Neill?
How many days does it rain in May in O'Neill?
When it does not snow in O'Neill?
Does it snow in O'Neill in May?
How many hours of daylight does O'Neill have in May?
What time are sunrise and sunset in May in O'Neill?
How many hours of sunshine does O'Neill have in May?
What are the months with the highest UV index in O'Neill?
What is the UV index reading in May in O'Neill?
Average temperature in May
O'Neill, IA
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
O'Neill, IA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
O'Neill, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
O'Neill, IA
- Average humidity in May: 81%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
O'Neill, IA
- Average rainfall in May: 3.54"
The wettest months (with the highest rainfall) are May and June (3.54").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in May
O'Neill, IA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in May
O'Neill, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
O'Neill, IA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
O'Neill, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
O'Neill, IA
- Average sunshine days in May: 9.4 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in May
O'Neill, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
O'Neill, IA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
O'Neill, IA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
O'Neill, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
