May weather forecast
Fontanelle, IA

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Weather in May

May, the last month of the spring in Fontanelle, is a pleasant month, with an average temperature fluctuating between 69.1°F (20.6°C) and 52.5°F (11.4°C).

Temperature

Fontanelle sees an increase in average high-temperatures during May, moving from a refreshing 59.4°F (15.2°C) in April to an agreeable 69.1°F (20.6°C). The average nighttime temperature lowers to a fresh 52.5°F (11.4°C) throughout May.

Humidity

In May, the average relative humidity in Fontanelle, Iowa, is 78%.

Rainfall

In Fontanelle, during May, the rain falls for 18 days and regularly aggregates up to 4.21" (107mm) of precipitation. In Fontanelle, Iowa, during the entire year, the rain falls for 138.2 days and collects up to 28.23" (717mm) of precipitation.

Snowfall

Months with snowfall in Fontanelle are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Fontanelle aggregates 0.63" (16mm) of snow. In Fontanelle, Iowa, during the entire year, snow falls for 35.5 days and aggregates up to 15.71" (399mm) of snow.

Daylight

In Fontanelle, the average length of the day in May is 14h and 31min.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:16 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:44 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

In May, the average daily maximum UV index in Fontanelle is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What are the temperatures in Fontanelle in May?

The high-temperature, in May, in Fontanelle, records 69.1°F (20.6°C), while the low-temperature is 52.5°F (11.4°C).

What is the average humidity in May in Fontanelle?

In Fontanelle, the average relative humidity in May is 78%.

How many days does it rain in May in Fontanelle?

In Fontanelle, Iowa, in May, during 18 rainfall days, 4.21" (107mm) of precipitation is typically accumulated.

What is the last month it snows in Fontanelle?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Fontanelle aggregates 0.63" (16mm) of snow.

What is the average length of the day in May in Fontanelle?

In May, the average day length in Fontanelle, Iowa, is 14h and 31min.

When is the sunrise / sunset in May in Fontanelle?

On the first day of May in Fontanelle, sunrise is at 6:14 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:44 pm CDT.

How many hours of sunshine does Fontanelle have in May?

In May, the average sunshine duration in Fontanelle, Iowa, is 8.5h.

How high is the UV index in May in Fontanelle?

In Fontanelle, Iowa, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Fontanelle, IA

Average temperature in May - Fontanelle, IA
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in May: 52.5°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in May
Fontanelle, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in May
Fontanelle, IA

Average wind speed in May - Fontanelle, IA
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in May
Fontanelle, IA

Average humidity in May - Fontanelle, IA
  • Average humidity in May: 78%

The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Fontanelle, IA

Average rainfall in May - Fontanelle, IA
  • Average rainfall in May: 4.21"

The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in May
Fontanelle, IA

Average rainfall days in May - Fontanelle, IA
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4 days).

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Average snowfall in May
Fontanelle, IA

Average snowfall in May - Fontanelle, IA
  • Average snowfall in May: 0.63"

The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Fontanelle, IA

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

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Fontanelle, IA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in May
Fontanelle, IA

Average sunshine days in May - Fontanelle, IA
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (9.6 days).

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Average UV index in May
Fontanelle, IA

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in May
Fontanelle, IA

Average cloud cover in May - Fontanelle, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in May
Fontanelle, IA

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

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

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Fontanelle, Iowa, USA

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