May weather forecast
Boyden, IA

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Weather in May

May, the last month of the spring in Boyden, is an agreeable month, with temperature in the range of an average high of 68.2°F (20.1°C) and an average low of 51.3°F (10.7°C).

Temperature

A shift in the average high-temperature is noticeable in May, changing from a mild 56.1°F (13.4°C) in April to a pleasant 68.2°F (20.1°C). During May, Boyden's temperature falls to a steady low-temperature average of 51.3°F (10.7°C).

Humidity

The average relative humidity in May is 69%.

Rainfall

In Boyden, during May, the rain falls for 16.3 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Boyden, during the entire year, the rain falls for 117.7 days and collects up to 21.42" (544mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Boyden aggregates 0.12" (3mm) of snow. Throughout the year, there are 43.5 snowfall days, and 15.91" (404mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 42min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:56 pm CDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature during May is 68.2°F (20.1°C) and the low-temperature is 51.3°F (10.7°C).

What is the average humidity in May?

In May, the average relative humidity is 69%.

How much does it rain in Boyden in May?

In Boyden, Iowa, in May, it is raining for 16.3 days, with typically 2.91" (74mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Boyden aggregates 0.12" (3mm) of snow.

What is the average length of the day in May?

In Boyden, the average day length in May is 14h and 42min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:56 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.8h.

How high is the UV index in May?

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 unsafe 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
Boyden, IA

Average temperature in May - Boyden, IA
  • Average high temperature in May: 68.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in May: 51.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in May
Boyden, IA

Average pressure in May - Boyden, IA
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in May
Boyden, IA

Average wind speed in May - Boyden, IA
  • Average wind speed in May: 9.7mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May
Boyden, IA

Average humidity in May - Boyden, IA
  • Average humidity in May: 69%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (67%).

Average rainfall in May
Boyden, IA

Average rainfall in May - Boyden, IA
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January and February (0.67").

Average rainfall days in May
Boyden, IA

Average rainfall days in May - Boyden, IA
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3 days).

Average snowfall in May
Boyden, IA

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

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Boyden, IA

Average snowfall days in May - Boyden, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Boyden, 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 0min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Boyden, IA

Average sunshine days in May - Boyden, IA
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in May
Boyden, IA

Average UV index in May - Boyden, 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, October, November and December (UV index 2).

Average cloud cover in May
Boyden, IA

Average cloud cover in May - Boyden, IA
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in May
Boyden, IA

Average visibility in May - Boyden, 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).

Boyden, Iowa, USA

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