May weather forecast
Dellwood, MO

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Weather in May

The last month of the spring, May, is a warm month in Dellwood, Missouri, with an average temperature fluctuating between 57.6°F (14.2°C) and 74.8°F (23.8°C).

Temperature

The shift from April to May brings an increase in the average high-temperature, moving from a refreshing 65.1°F (18.4°C) to a moderately hot 74.8°F (23.8°C). Throughout May, Dellwood witnesses a consistent average low-temperature of 57.6°F (14.2°C).

Humidity

The most humid month in Dellwood is May, with an average relative humidity of 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 3.82" (97mm) of precipitation.

Snowfall

April through October are months without snowfall in Dellwood.

Daylight

In Dellwood, the average length of the day in May is 14h and 18min.
On the first day of May in Dellwood, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:19 pm CDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In May, an average UV index of 6 transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What are the temperatures in Dellwood in May?

In Dellwood, 74.8°F (23.8°C) is the average high-temperature and 57.6°F (14.2°C) is the average low-temperature during May.

What is the most humid month in Dellwood?

With an average relative humidity of 78%, May is the most humid month in Dellwood.

What is the average humidity in May in Dellwood?

The average relative humidity in May is 78%.

What is the rainiest month in Dellwood?

May is the month with the most rainfall in Dellwood. Rain falls for 17.5 days and accumulates 3.82" (97mm) of precipitation.

How many days does it rain in May in Dellwood?

In May, the rain falls for 17.5 days. Throughout May, 3.82" (97mm) of precipitation is accumulated.

When it does not snow in Dellwood?

In Dellwood, Missouri, snow does not fall in April through October.

How many hours of daylight does Dellwood have in May?

The average day length in May is 14h and 18min.

What time are sunrise and sunset in May in Dellwood?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:19 pm CDT.

How long on average sun shines in May in Dellwood?

In May, the average sunshine duration in Dellwood is 9.5h.

What are the months with the highest UV index in Dellwood?

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

What is the UV index reading in May in Dellwood?

The average daily maximum UV index in May in Dellwood is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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
Dellwood, MO

Average temperature in May - Dellwood, MO
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in May: 57.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in May
Dellwood, MO

Average pressure in May - Dellwood, 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).

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Average wind speed in May
Dellwood, MO

Average wind speed in May - Dellwood, MO
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

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Average humidity in May
Dellwood, MO

Average humidity in May - Dellwood, MO
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Dellwood, MO

Average rainfall in May - Dellwood, MO
  • Average rainfall in May: 3.82"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in May
Dellwood, MO

Average rainfall days in May - Dellwood, MO
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in May
Dellwood, MO

Average snowfall in May - Dellwood, MO
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Dellwood, MO

Average snowfall days in May - Dellwood, MO
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Dellwood, MO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in May
Dellwood, MO

Average sunshine days in May - Dellwood, MO
  • Average sunshine days in May: 11 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

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Average UV index in May
Dellwood, MO

Average UV index in May - Dellwood, 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).

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Average cloud cover in May
Dellwood, MO

Average cloud cover in May - Dellwood, MO
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Dellwood, MO

Average visibility in May - Dellwood, 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).

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Dellwood, Missouri, USA

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