May weather forecast
Dilly, WI

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Weather in May

May, the last month of the spring in Dilly, is an enjoyable month, with an average temperature varying between 47.5°F (8.6°C) and 65.8°F (18.8°C).

Temperature

With the arrival of May, the average high-temperature transitions from a fresh 53.1°F (11.7°C) in April to a comfortable 65.8°F (18.8°C). The average low-temperature, in May, is a frosty 47.5°F (8.6°C).

Humidity

The average relative humidity in May in Dilly is 79%.

Rainfall

In May, in Dilly, the rain falls for 17.5 days. Throughout May, 3.39" (86mm) of precipitation is accumulated. In Dilly, during the entire year, the rain falls for 131.7 days and collects up to 27.83" (707mm) 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, Dilly aggregates 0.04" (1mm) of snow. In Dilly, Wisconsin, during the entire year, snow falls for 50.2 days and aggregates up to 21.69" (551mm) of snow.

Daylight

The average length of the day in May is 14h and 44min.
On the first day of May, sunrise is at 5:52 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:35 pm CDT.

Sunshine

The average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index in Dilly is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Dilly in May?

The average high-temperature and low-temperature in Dilly, Wisconsin, during May are 65.8°F (18.8°C) and 47.5°F (8.6°C) respectively.

What is the average humidity in May in Dilly?

In May, the average relative humidity is 79%.

How much does it rain in Dilly in May?

In Dilly, during May, the rain falls for 17.5 days and regularly aggregates up to 3.39" (86mm) of precipitation.

What is the last month it snows in Dilly?

May is the last month it regularly snows in Dilly, Wisconsin. During 0.3 snowfall days, in May, Dilly aggregates 0.04" (1mm) of snow.

How many hours of daylight does Dilly have in May?

In Dilly, the average day length in May is 14h and 44min.

When is the sunrise / sunset in May in Dilly?

On the first day of May in Dilly, Wisconsin, sunrise is at 5:52 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:35 pm CDT.

How long on average sun shines in May in Dilly?

The average sunshine duration in May in Dilly is 8.4h.

What is the UV index reading in May in Dilly?

In May, the average daily maximum UV index in Dilly, Wisconsin, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from 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
Dilly, WI

Average temperature in May - Dilly, WI
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in May: 47.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in May
Dilly, WI

Average pressure in May - Dilly, WI
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Dilly, WI

Average wind speed in May - Dilly, WI
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in May
Dilly, WI

Average humidity in May - Dilly, WI
  • Average humidity in May: 79%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
Dilly, WI

Average rainfall in May - Dilly, WI
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.1").

Average rainfall days in May
Dilly, WI

Average rainfall days in May - Dilly, WI
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (3.5 days).

Average snowfall in May
Dilly, WI

Average snowfall in May - Dilly, WI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dilly, WI

Average snowfall days in May - Dilly, WI
  • 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
Dilly, WI

Average daylight in May / Average sunshine in May - Dilly, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 24min).
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 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
Dilly, WI

Average sunshine days in May - Dilly, WI
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in May
Dilly, WI

Average UV index in May - Dilly, WI
  • Average UV index in May: 5

The month with the highest UV index is 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
Dilly, WI

Average cloud cover in May - Dilly, WI
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
Dilly, WI

Average visibility in May - Dilly, WI
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).

Dilly, Wisconsin, USA

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