September weather forecast
Thompson, MO

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Weather in September

September, the first month of the autumn in Thompson, is still a warm month, with an average temperature ranging between max 78.4°F (25.8°C) and min 58.8°F (14.9°C).

Temperature

Thompson in September experiences a gentle temperature dip, with average high-temperatures reducing from 84.6°F (29.2°C) in August to a still warm 78.4°F (25.8°C). Throughout the nights in September, Thompson experiences an average low-temperature of 58.8°F (14.9°C).

Humidity

In September, the average relative humidity is 74%.

Rainfall

In September, the rain falls for 11.7 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Thompson, during the entire year, the rain falls for 142.2 days and collects up to 29.13" (740mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Thompson in September?

An average high-temperature, in September, in Thompson, is 78.4°F (25.8°C) and the average low-temperature is 58.8°F (14.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is evaluated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Thompson, during September, the rain falls for 11.7 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow?

In Thompson, snow does not fall in May through September.

Does it snow in September?

In Thompson, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm CDT.

How long on average sun shines in September?

In Thompson, the average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

In Thompson, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate 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 September
Thompson, MO

Average temperature in September - Thompson, MO
  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in September
Thompson, MO

Average pressure in September - Thompson, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Thompson, MO

Average wind speed in September - Thompson, MO
  • Average wind speed in September: 6.9mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in September
Thompson, MO

Average humidity in September - Thompson, MO
  • Average humidity in September: 74%

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

Average rainfall in September
Thompson, MO

Average rainfall in September - Thompson, MO
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in September
Thompson, MO

Average rainfall days in September - Thompson, MO
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in September
Thompson, MO

Average snowfall in September - Thompson, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Thompson, MO

Average snowfall days in September - Thompson, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Thompson, MO

Average daylight in September / Average sunshine in September - Thompson, MO
  • Average daylight in September: 12h 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 September: 9h and 2min

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

Average sunshine days in September
Thompson, MO

Average sunshine days in September - Thompson, MO
  • Average sunshine days in September: 17 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in September
Thompson, MO

Average UV index in September - Thompson, MO
  • Average UV index in September: 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).

Average cloud cover in September
Thompson, MO

Average cloud cover in September - Thompson, MO
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September
Thompson, MO

Average visibility in September - Thompson, MO
  • Average visibility in September: 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).

Thompson, Missouri, USA

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