May weather forecast
Portage Des Sioux, MO

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Weather in May

The last month of the spring, May, is a warm month in Portage Des Sioux, Missouri, with an average temperature ranging between max 74.1°F (23.4°C) and min 56.8°F (13.8°C).

Temperature

In Portage Des Sioux, the average high-temperature in May increases from an enjoyable 64.9°F (18.3°C) in April to a warm 74.1°F (23.4°C). During the nights in May, an average low-temperature of 56.8°F (13.8°C) is observed.

Humidity

The most humid month is May, with an average relative humidity of 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.9 days and accumulates 3.35" (85mm) of precipitation.

Snowfall

In Portage Des Sioux, Missouri, snow does not fall in April through October.

Daylight

The average length of the day in May is 14h and 19min.
On the first day of May, sunrise is at 6:02 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:20 pm CDT.

Sunshine

In Portage Des Sioux, the average sunshine in May is 9.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

In Portage Des Sioux, 74.1°F (23.4°C) is the average high-temperature and 56.8°F (13.8°C) is the average low-temperature during May.

What is the most humid month?

The most humid month in Portage Des Sioux is May, with an average relative humidity of 79%.

What is the average humidity in May?

The average relative humidity in May is 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 3.35" (85mm) of precipitation.

How much does it rain in May?

In Portage Des Sioux, in May, it is raining for 15.9 days, with typically 3.35" (85mm) of accumulated precipitation.

When it does not snow?

In Portage Des Sioux, snow does not fall in April through October.

What is the average length of the day in May?

The average day length in May is 14h and 19min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:20 pm CDT.

How long on average sun shines in May?

In Portage Des Sioux, the average sunshine duration in May is 9.3h.

What are the months with the highest UV index in Portage Des Sioux?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in May?

In Portage Des Sioux, Missouri, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Portage Des Sioux, MO

Average temperature in May - Portage Des Sioux, MO
  • Average high temperature in May: 74.1°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 56.8°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in May
Portage Des Sioux, MO

Average pressure in May - Portage Des Sioux, MO
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Portage Des Sioux, MO

Average wind speed in May - Portage Des Sioux, MO
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in May
Portage Des Sioux, MO

Average humidity in May - Portage Des Sioux, MO
  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Portage Des Sioux, MO

Average rainfall in May - Portage Des Sioux, MO
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (1.3").

Average rainfall days in May
Portage Des Sioux, MO

Average rainfall days in May - Portage Des Sioux, MO
  • Average rainfall days in May: 15.9 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in May
Portage Des Sioux, MO

Average snowfall in May - Portage Des Sioux, MO
  • Average snowfall in May: 0"

The months with the highest snowfall are January and February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Portage Des Sioux, MO

Average snowfall days in May - Portage Des Sioux, MO
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Portage Des Sioux, MO

Average daylight in May / Average sunshine in May - Portage Des Sioux, MO
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in May
Portage Des Sioux, MO

Average sunshine days in May - Portage Des Sioux, MO
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in May
Portage Des Sioux, MO

Average UV index in May - Portage Des Sioux, MO
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Portage Des Sioux, MO

Average cloud cover in May - Portage Des Sioux, MO
  • Average cloud cover in May: 38

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Portage Des Sioux, MO

Average visibility in May - Portage Des Sioux, MO
  • 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).

Portage Des Sioux, Missouri, USA

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