May weather forecast
South English, IA

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Weather in May

May, the last month of the spring in South English, is a pleasant month, with an average temperature ranging between max 70°F (21.1°C) and min 53.2°F (11.8°C).

Temperature

South English's May weather shows an increase in high-temperatures, moving from April's refreshing 59.5°F (15.3°C) to an agreeable 70°F (21.1°C). During May, South English's temperature averages to a cool 53.2°F (11.8°C) at night.

Humidity

In May, the average relative humidity is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 4.17" (106mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in South English. During 0.1 snowfall days, in May, South English aggregates 0.04" (1mm) of snow. In South English, during the entire year, snow falls for 32.8 days and aggregates up to 12.56" (319mm) of snow.

Daylight

In May, the average length of the day is 14h and 32min.
On the first day of the month, sunrise is at 6:04 am and sunset at 8:06 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:35 pm CDT.

Sunshine

In South English, Iowa, the average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 during May leads to these advisories:
Act with care - The suggestion to avoid sunburn is emphasized. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The average high-temperature, in May, in South English, is 70°F (21.1°C), while the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May?

In May, the average relative humidity in South English is 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 4.17" (106mm) of precipitation.

How much does it rain in May?

In South English, in May, during 17.7 rainfall days, 4.17" (106mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, South English aggregates 0.04" (1mm) of snow.

What is the average length of the day in May?

In South English, the average day length in May is 14h and 32min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:35 pm CDT.

How many hours of sunshine does South English have in May?

In South English, the average sunshine duration in May is 8.7h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
South English, IA

Average temperature in May - South English, IA
  • Average high temperature in May: 70°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in May: 53.2°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 (15.6°F).

Average pressure in May
South English, IA

Average pressure in May - South English, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
South English, IA

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

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in May
South English, IA

Average humidity in May - South English, IA
  • Average humidity in May: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
South English, IA

Average rainfall in May - South English, IA
  • Average rainfall in May: 4.17"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in May
South English, IA

Average rainfall days in May - South English, IA
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in May
South English, IA

Average snowfall in May - South English, IA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
South English, IA

Average snowfall days in May - South English, IA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
South English, IA

Average daylight in May / Average sunshine in May - South English, 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 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in May
South English, IA

Average sunshine days in May - South English, IA
  • Average sunshine days in May: 11 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in May
South English, IA

Average UV index in May - South English, 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
South English, IA

Average cloud cover in May - South English, IA
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in May
South English, IA

Average visibility in May - South English, IA
  • Average visibility in May: 6mi

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

South English, Iowa, USA

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