May weather forecast
Manly, IA

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Weather in May

The last month of the spring, May, is an enjoyable month in Manly, Iowa, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 66.6°F (19.2°C).

Temperature

May shows a rise in the average high-temperature, moving from April's fresh 54.3°F (12.4°C) to a comfortable 66.6°F (19.2°C). Throughout May, the temperature falls to an average low of 50.4°F (10.2°C).

Humidity

In Manly, the average relative humidity in May is 74%.

Rainfall

In May, in Manly, the rain falls for 17.2 days. Throughout May, 3.07" (78mm) of precipitation is accumulated. In Manly, Iowa, during the entire year, the rain falls for 134.3 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

Months with snowfall in Manly are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Manly aggregates 0.47" (12mm) of snow. Throughout the year, there are 57 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 42min.
On the first day of May in Manly, Iowa, 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

In May, the average sunshine is 8.4h.

UV index

In Manly, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 5 in May transforms into this advice:
Guard yourself - Avoiding sunburn is suggested. To protect against the Sun's most potent rays, avoid direct exposure around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Manly?

The high-temperature, in May, in Manly, is 66.6°F (19.2°C), while the low-temperature averages to 50.4°F (10.2°C).

What is the average humidity in May in Manly?

In Manly, Iowa, the average relative humidity in May is 74%.

How much does it rain in Manly in May?

In Manly, Iowa, in May, during 17.2 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

What is the last month it snows in Manly?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Manly aggregates 0.47" (12mm) of snow.

How many hours of daylight does Manly have in May?

In May, the average day length is 14h and 42min.

What time are sunrise and sunset in May in Manly?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 8:14 pm. On the last day of the month, in Manly, Iowa, sunrise is at 5:35 am and sunset at 8:45 pm CDT.

How long on average sun shines in May in Manly?

The average sunshine duration in May is 8.4h.

How high is the UV index in May in Manly?

In May, the average daily maximum UV index in Manly is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Manly, IA

Average temperature in May - Manly, IA
  • Average high temperature in May: 66.6°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in May: 50.4°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°F).

Average pressure in May
Manly, IA

Average pressure in May - Manly, IA
  • Average pressure in May: 29.93"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
Manly, IA

Average wind speed in May - Manly, IA
  • Average wind speed in May: 9.4mph

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 (7.4mph).

Average humidity in May
Manly, IA

Average humidity in May - Manly, IA
  • Average humidity in May: 74%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).

Average rainfall in May
Manly, IA

Average rainfall in May - Manly, IA
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in May
Manly, IA

Average rainfall days in May - Manly, IA
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in May
Manly, IA

Average snowfall in May - Manly, IA
  • Average snowfall in May: 0.47"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Manly, IA

Average snowfall days in May - Manly, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Manly, IA

Average daylight in May / Average sunshine in May - Manly, 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 0min).

  • 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 24min).

Average sunshine days in May
Manly, IA

Average sunshine days in May - Manly, IA
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in May
Manly, IA

Average UV index in May - Manly, IA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Manly, IA

Average cloud cover in May - Manly, IA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in May
Manly, IA

Average visibility in May - Manly, IA
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).

Manly, Iowa, USA

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