May weather forecast
Saint Ansgar, IA

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Weather in May

The last month of the spring, May, is a comfortable month in Saint Ansgar, Iowa, with an average temperature fluctuating between 66.4°F (19.1°C) and 49.8°F (9.9°C).

Temperature

May indicates a change in the average high-temperature, moving up from a cool 54.3°F (12.4°C) in April to an enjoyable 66.4°F (19.1°C). Saint Ansgar, in May, experiences an average temperature of 49.8°F (9.9°C) at night.

Humidity

In Saint Ansgar, the average relative humidity in May is 76%.

Rainfall

In Saint Ansgar, in May, during 17.3 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, there are 135.3 rainfall days, and 26.54" (674mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Saint Ansgar aggregates 0.47" (12mm) of snow. Throughout the year, there are 50.9 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 43min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:45 pm CDT.

Sunshine

In Saint Ansgar, the average sunshine in May is 8.4h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In May, a regular UV index of 5 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

May temperatures in Saint Ansgar vary between a high-temperature of 66.4°F (19.1°C) and a low-temperature of 49.8°F (9.9°C).

What is the average humidity in May?

In Saint Ansgar, the average relative humidity in May is 76%.

How many days does it rain in May?

In Saint Ansgar, in May, it is raining for 17.3 days, with typically 3.46" (88mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.5 snowfall days, in May, Saint Ansgar aggregates 0.47" (12mm) of snow.

What is the average length of the day in May?

In Saint Ansgar, the average day length in May is 14h and 43min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:03 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:45 pm CDT.

How many hours of sunshine does Saint Ansgar have in May?

The average sunshine duration in May is 8.4h.

What is the UV index reading in May?

In Saint Ansgar, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Saint Ansgar, IA

Average temperature in May - Saint Ansgar, IA
  • Average high temperature in May: 66.4°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in May: 49.8°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in May
Saint Ansgar, IA

Average pressure in May - Saint Ansgar, 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
Saint Ansgar, IA

Average wind speed in May - Saint Ansgar, IA
  • Average wind speed in May: 9.3mph

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 (7.3mph).

Average humidity in May
Saint Ansgar, IA

Average humidity in May - Saint Ansgar, IA
  • Average humidity in May: 76%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Saint Ansgar, IA

Average rainfall in May - Saint Ansgar, IA
  • Average rainfall in May: 3.46"

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
Saint Ansgar, IA

Average rainfall days in May - Saint Ansgar, IA
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (3 days).

Average snowfall in May
Saint Ansgar, IA

Average snowfall in May - Saint Ansgar, IA
  • Average snowfall in May: 0.47"

The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Saint Ansgar, IA

Average snowfall days in May - Saint Ansgar, IA
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is December (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Saint Ansgar, IA

Average daylight in May / Average sunshine in May - Saint Ansgar, IA
  • 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in May
Saint Ansgar, IA

Average sunshine days in May - Saint Ansgar, IA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in May
Saint Ansgar, IA

Average UV index in May - Saint Ansgar, 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
Saint Ansgar, IA

Average cloud cover in May - Saint Ansgar, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in May
Saint Ansgar, IA

Average visibility in May - Saint Ansgar, 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).

Saint Ansgar, Iowa, USA

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