May weather forecast
Saint Thomas, MO

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Weather in May

The last month of the spring, May, is a warm month in Saint Thomas, Missouri, with an average temperature varying between 55.8°F (13.2°C) and 75.7°F (24.3°C).

Temperature

May shows a rise in the average high-temperature, moving from April's comfortable 66°F (18.9°C) to a warm 75.7°F (24.3°C). Saint Thomas sees an average low-temperature of 55.8°F (13.2°C) during May.

Humidity

May is the most humid month in Saint Thomas, with an average relative humidity of 77%.

Rainfall

May is the month with the most rainfall in Saint Thomas. Rain falls for 11.3 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

In Saint Thomas, snow does not fall in April through October.

Daylight

The average length of the day in May in Saint Thomas is 14h and 16min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:00 pm. On the last day of May, in Saint Thomas, sunrise is at 5:46 am and sunset at 8:26 pm CDT.

Sunshine

In Saint Thomas, the average sunshine in May is 9.1h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Heed the precautions - It is counselled to guard against solar damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are May temperatures in Saint Thomas?

In May, in Saint Thomas, the average high-temperature is 75.7°F (24.3°C), and the average low-temperature is 55.8°F (13.2°C).

What is the most humid month in Saint Thomas?

May is the most humid month in Saint Thomas, with an average relative humidity of 77%.

What is the average humidity in May in Saint Thomas?

In Saint Thomas, the average relative humidity in May is 77%.

What is the rainiest month in Saint Thomas?

May is the month with the most rainfall in Saint Thomas. Rain falls for 11.3 days and accumulates 1.3" (33mm) of precipitation.

How many days does it rain in May in Saint Thomas?

In Saint Thomas, Missouri, in May, during 11.3 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When it does not snow in Saint Thomas?

April through October are months without snowfall in Saint Thomas, Missouri.

What is the average length of the day in May in Saint Thomas?

In Saint Thomas, Missouri, the average day length in May is 14h and 16min.

When are sunrise and sunset in May in Saint Thomas?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 8:00 pm. On the last day of the month, in Saint Thomas, sunrise is at 5:46 am and sunset at 8:26 pm CDT.

How long on average sun shines in May in Saint Thomas?

In Saint Thomas, Missouri, the average sunshine duration in May is 9.1h.

How high is the UV index in May in Saint Thomas?

The average daily maximum UV index in May in Saint Thomas, Missouri, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Saint Thomas, MO

Average temperature in May - Saint Thomas, MO
  • Average high temperature in May: 75.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in May: 55.8°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in May
Saint Thomas, MO

Average pressure in May - Saint Thomas, 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
Saint Thomas, MO

Average wind speed in May - Saint Thomas, MO
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in May
Saint Thomas, MO

Average humidity in May - Saint Thomas, MO
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Saint Thomas, MO

Average rainfall in May - Saint Thomas, MO
  • Average rainfall in May: 1.3"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").

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Average rainfall days in May
Saint Thomas, MO

Average rainfall days in May - Saint Thomas, MO
  • Average rainfall days in May: 11.3 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).

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Average snowfall in May
Saint Thomas, MO

Average snowfall in May - Saint Thomas, MO
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.71").
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
Saint Thomas, MO

Average snowfall days in May - Saint Thomas, MO
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.2 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
Saint Thomas, MO

Average daylight in May / Average sunshine in May - Saint Thomas, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
Saint Thomas, MO

Average sunshine days in May - Saint Thomas, MO
  • Average sunshine days in May: 16.7 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).

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Average UV index in May
Saint Thomas, MO

Average UV index in May - Saint Thomas, MO
  • Average UV index in May: 5

The months with the highest UV index are 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
Saint Thomas, MO

Average cloud cover in May - Saint Thomas, MO
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in May
Saint Thomas, MO

Average visibility in May - Saint Thomas, 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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Saint Thomas, Missouri, USA

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