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
The arrival of May in Mason City brings a temperature shift, with the average high-temperature escalating from a cool 54.9°F (12.7°C) in April to a refreshing 67.3°F (19.6°C). During May, the temperature tends to dip to an average of 51.3°F (10.7°C) at night.Humidity
The average relative humidity in May is 74%.Rainfall
In Mason City, during May, the rain falls for 19.1 days and regularly aggregates up to 3.78" (96mm) of precipitation. Throughout the year, in Mason City, there are 145.9 rainfall days, and 28.82" (732mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Mason City, Iowa. During 0.4 snowfall days, in May, Mason City aggregates 0.63" (16mm) of snow. In Mason City, during the entire year, snow falls for 60.2 days and aggregates up to 26.26" (667mm) of snow.Daylight
The average length of the day in May in Mason City is 14h and 41min.On the first day of May in Mason City, sunrise is at 6:04 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:45 pm CDT.
Sunshine
The average sunshine in May is 8.4h.UV index
In Mason City, Iowa, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 5 during May leads to these instructions:
Exercise prevention - Warding off sunburn is urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are May temperatures in Mason City?
What is the average humidity in May in Mason City?
How much does it rain in Mason City in May?
What is the last month it snows in Mason City?
What is the average length of the day in May in Mason City?
What time are sunrise and sunset in May in Mason City?
How many hours of sunshine does Mason City have in May?
What is the UV index reading in May in Mason City?
Average temperature in May
Mason City, IA
- Average high temperature in May: 67.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in May: 51.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in May
Mason City, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Mason City, IA
- Average wind speed in May: 9.4mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in May
Mason City, IA
- Average humidity in May: 74%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Mason City, IA
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
Mason City, IA
- Average rainfall days in May: 19.1 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in May
Mason City, IA
- Average snowfall in May: 0.63"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mason City, IA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mason City, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Mason City, IA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).
Average UV index in May
Mason City, IA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Mason City, IA
- Average cloud cover in May: 43
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
Mason City, IA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Mason City, Iowa, USA
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