May weather forecast
Dundee, IA

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Weather in May

The last month of the spring, May, is a refreshing month in Dundee, Iowa, with an average temperature fluctuating between 66.7°F (19.3°C) and 50.4°F (10.2°C).

Temperature

May brings an increase in the average high-temperature, progressing from a cool 55.2°F (12.9°C) in April to a refreshing 66.7°F (19.3°C). During May, Dundee consistently records a temperature low averaging a cool 50.4°F (10.2°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

In May, the rain falls for 19.2 days. Throughout May, 4.41" (112mm) of precipitation is accumulated. In Dundee, during the entire year, the rain falls for 142.8 days and collects up to 30.55" (776mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Dundee aggregates 0.12" (3mm) of snow. Throughout the year, there are 51 snowfall days, and 22.05" (560mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 5:59 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:36 pm CDT.

Sunshine

In Dundee, the average sunshine in May is 8.2h.

UV index

In Dundee, Iowa, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Dundee, records 66.7°F (19.3°C), while the low-temperature is 50.4°F (10.2°C).

What is the average humidity in May in Dundee?

The average relative humidity in May is 80%.

How many days does it rain in May?

In Dundee, in May, it is raining for 19.2 days, with typically 4.41" (112mm) of accumulated precipitation.

What is the last month it snows in Dundee?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Dundee aggregates 0.12" (3mm) of snow.

How many hours of daylight does Dundee have in May?

In May, the average day length is 14h and 38min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:59 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:36 pm CDT.

How many hours of sunshine does Dundee have in May?

In May, the average sunshine duration is 8.2h.

What is the UV index intensity in May?

In Dundee, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Dundee, IA

Average temperature in May - Dundee, IA
  • Average high temperature in May: 66.7°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 (23.7°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 (11.3°F).

Average pressure in May
Dundee, IA

Average pressure in May - Dundee, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Dundee, IA

Average wind speed in May - Dundee, IA
  • Average wind speed in May: 9.2mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in May
Dundee, IA

Average humidity in May - Dundee, IA
  • Average humidity in May: 80%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (75%).

Average rainfall in May
Dundee, IA

Average rainfall in May - Dundee, IA
  • Average rainfall in May: 4.41"

The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in May
Dundee, IA

Average rainfall days in May - Dundee, IA
  • Average rainfall days in May: 19.2 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in May
Dundee, IA

Average snowfall in May - Dundee, IA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dundee, IA

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

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dundee, 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 August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in May
Dundee, IA

Average sunshine days in May - Dundee, IA
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (8.2 days).

Average UV index in May
Dundee, IA

Average UV index in May - Dundee, 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, November and December (UV index 1).

Average cloud cover in May
Dundee, IA

Average cloud cover in May - Dundee, IA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in May
Dundee, IA

Average visibility in May - Dundee, 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).

Dundee, Iowa, USA

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