May weather forecast
Dunkerton, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Dunkerton, Iowa, with temperature in the range of an average high of 68.2°F (20.1°C) and an average low of 51.4°F (10.8°C).

Temperature

May brings a rise in the average high-temperature, transitioning from April's refreshing 56.3°F (13.5°C) to a pleasant 68.2°F (20.1°C). Dunkerton observes an average nighttime temperature of 51.4°F (10.8°C) during May.

Humidity

In May, the average relative humidity in Dunkerton, Iowa, is 77%.

Rainfall

In May, the rain falls for 18.7 days. Throughout May, 4.57" (116mm) of precipitation is accumulated. In Dunkerton, Iowa, during the entire year, the rain falls for 143.2 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Dunkerton aggregates 0.2" (5mm) of snow. Throughout the year, there are 48.7 snowfall days, and 19.09" (485mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 38min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:09 pm. On the last day of May, in Dunkerton, sunrise is at 5:33 am and sunset at 8:39 pm CDT.

Sunshine

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

UV index

In Dunkerton, Iowa, 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 average individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take precaution! The reflection from snow can almost 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 is the average May temperature in Dunkerton?

In May, the average high-temperature and low-temperature are 68.2°F (20.1°C) and 51.4°F (10.8°C) respectively.

What is the average humidity in May in Dunkerton?

In May, the average relative humidity in Dunkerton is 77%.

How many days does it rain in May in Dunkerton?

In Dunkerton, Iowa, during May, the rain falls for 18.7 days and regularly aggregates up to 4.57" (116mm) of precipitation.

What is the last month it snows in Dunkerton?

May is the last month it regularly snows in Dunkerton, Iowa. During 0.3 snowfall days, in May, Dunkerton aggregates 0.2" (5mm) of snow.

How many hours of daylight does Dunkerton have in May?

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

When are sunrise and sunset in May in Dunkerton?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 8:09 pm. On the last day of the month, in Dunkerton, sunrise is at 5:33 am and sunset at 8:39 pm CDT.

How many hours of sunshine does Dunkerton have in May?

The average sunshine duration in May in Dunkerton, Iowa, is 8.2h.

What is the UV index intensity in May in Dunkerton?

The average daily maximum UV index in May in Dunkerton, Iowa, is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Dunkerton, IA

Average temperature in May - Dunkerton, IA
  • Average high temperature in May: 68.2°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 (24.3°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in May
Dunkerton, IA

Average pressure in May - Dunkerton, 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
Dunkerton, IA

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

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in May
Dunkerton, IA

Average humidity in May - Dunkerton, IA
  • Average humidity in May: 77%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Dunkerton, IA

Average rainfall in May - Dunkerton, IA
  • Average rainfall in May: 4.57"

The wettest month (with the highest rainfall) is June (4.88").
The driest months (with the least rainfall) are January and February (1.14").

Average rainfall days in May
Dunkerton, IA

Average rainfall days in May - Dunkerton, IA
  • Average rainfall days in May: 18.7 days

The month with the highest number of rainy days is June (19.6 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in May
Dunkerton, IA

Average snowfall in May - Dunkerton, IA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dunkerton, IA

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

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dunkerton, 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
Dunkerton, IA

Average sunshine days in May - Dunkerton, IA
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (7.8 days).

Average UV index in May
Dunkerton, IA

Average UV index in May - Dunkerton, 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
Dunkerton, IA

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

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in May
Dunkerton, IA

Average visibility in May - Dunkerton, 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).

Dunkerton, Iowa, USA

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