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's onset witnesses a shift in the average high-temperature, moving from a mild 57°F (13.9°C) in April to an agreeable 68.5°F (20.3°C). Troy Mills throughout May, experiences an average nighttime temperature of 52°F (11.1°C).Humidity
In May, the average relative humidity is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 4.37" (111mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Troy Mills aggregates 0.08" (2mm) of snow. Throughout the year, in Troy Mills, there are 41.2 snowfall days, and 16.73" (425mm) of snow is accumulated.Daylight
In Troy Mills, the average length of the day in May is 14h and 37min.On the first day of May in Troy Mills, sunrise is at 6:00 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:36 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Troy Mills, 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: A typical high UV index of 5 in May suggests the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Troy Mills?
What is the average humidity in May in Troy Mills?
What is the wettest month in Troy Mills?
How many days does it rain in May in Troy Mills?
What is the last month it snows in Troy Mills?
How many hours of daylight does Troy Mills have in May?
When are sunrise and sunset in May in Troy Mills?
How long on average sun shines in May in Troy Mills?
How high is the UV index in May in Troy Mills?
Average temperature in May
Troy Mills, IA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in May: 52°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Troy Mills, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Troy Mills, IA
- Average wind speed in May: 9.2mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Troy Mills, IA
- Average humidity in May: 79%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Troy Mills, IA
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").
Average rainfall days in May
Troy Mills, IA
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in May
Troy Mills, IA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Troy Mills, IA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Troy Mills, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Troy Mills, IA
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in May
Troy Mills, IA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Troy Mills, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Troy Mills, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Troy Mills, Iowa, USA
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