May weather forecast
Sac City, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Sac City, Iowa, with an average temperature varying between 52.7°F (11.5°C) and 69.1°F (20.6°C).

Temperature

The shift from April to May is marked by an increase in the average high-temperature, moving from a refreshing 57.9°F (14.4°C) to a pleasant 69.1°F (20.6°C). The temperature in Sac City lowers to an average of 52.7°F (11.5°C) during May nights.

Humidity

In Sac City, the average relative humidity in May is 70%.

Rainfall

May is the month with the most rainfall in Sac City. Rain falls for 14.2 days and accumulates 2.48" (63mm) 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, Sac City aggregates 0.16" (4mm) of snow. In Sac City, during the entire year, snow falls for 35.1 days and aggregates up to 7.99" (203mm) of snow.

Daylight

The average length of the day in May in Sac City, Iowa, is 14h and 37min.
On the first day of May, sunrise is at 6:13 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:50 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in May in Sac City is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are May temperatures in Sac City?

The average high-temperature, in May, in Sac City, is 69.1°F (20.6°C), while the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in May in Sac City?

The average relative humidity in May is 70%.

What is the rainiest month in Sac City?

The month with the most rainfall in Sac City, Iowa, is May, when the rain falls for 14.2 days and typically aggregates up to 2.48" (63mm) of precipitation.

How many days does it rain in May in Sac City?

In Sac City, Iowa, during May, the rain falls for 14.2 days and regularly aggregates up to 2.48" (63mm) of precipitation.

What is the last month it snows in Sac City?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Sac City aggregates 0.16" (4mm) of snow.

What is the average length of the day in May in Sac City?

The average day length in May in Sac City, Iowa, is 14h and 37min.

When is the sunrise / sunset in May in Sac City?

On the first day of May, sunrise is at 6:13 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:50 pm CDT.

How long on average sun shines in May in Sac City?

In Sac City, Iowa, the average sunshine duration in May is 8.6h.

What is the UV index reading in May in Sac City?

The average daily maximum UV index in May is 5. A UV Index value 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
Sac City, IA

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

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in May: 52.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

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Average pressure in May
Sac City, IA

Average pressure in May - Sac City, 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
Sac City, IA

Average wind speed in May - Sac City, IA
  • Average wind speed in May: 9.6mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

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Average humidity in May
Sac City, IA

Average humidity in May - Sac City, IA
  • Average humidity in May: 70%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is April (67%).

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Average rainfall in May
Sac City, IA

Average rainfall in May - Sac City, IA
  • Average rainfall in May: 2.48"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in May
Sac City, IA

Average rainfall days in May - Sac City, IA
  • Average rainfall days in May: 14.2 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2.5 days).

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Average snowfall in May
Sac City, IA

Average snowfall in May - Sac City, IA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Sac City, IA

Average snowfall days in May - Sac City, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.1 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
Sac City, IA

Average daylight in May / Average sunshine in May - Sac City, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • 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 0min).

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Average sunshine days in May
Sac City, IA

Average sunshine days in May - Sac City, IA
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12 days).

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Average UV index in May
Sac City, IA

Average UV index in May - Sac City, IA
  • Average UV index in May: 5

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

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Average cloud cover in May
Sac City, IA

Average cloud cover in May - Sac City, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Sac City, IA

Average visibility in May - Sac City, IA
  • Average visibility in May: 6mi

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

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Sac City, Iowa, USA

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