September weather forecast
Brookfield, MO

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Weather in September

September, the first month of the autumn in Brookfield, is also a moderately hot month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 57.7°F (14.3°C).

Temperature

Brookfield's shift from August to September is accompanied by an average high-temperature of a still warm 77.9°F (25.5°C), a slight deviation from 83.1°F (28.4°C). Brookfield encounters a steady low-temperature average of 57.7°F (14.3°C) throughout the month of September.

Humidity

In September, the average relative humidity in Brookfield is 76%.

Rainfall

In Brookfield, in September, during 8.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Brookfield, during the entire year, the rain falls for 101.9 days and collects up to 10.59" (269mm) of precipitation.

Snowfall

May through September are months without snowfall in Brookfield.

Daylight

In Brookfield, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:55 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In Brookfield, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Brookfield?

Brookfield in September has an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 57.7°F (14.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 91.4°F (33°C).

What is the average humidity in September in Brookfield?

In September, the average relative humidity in Brookfield, Missouri, is 76%.

How many days does it rain in September in Brookfield?

In Brookfield, Missouri, in September, it is raining for 8.2 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Brookfield?

May through September are months without snowfall in Brookfield, Missouri.

Does it snow in Brookfield in September?

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

How many hours of daylight does Brookfield have in September?

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

What time are sunrise and sunset in September in Brookfield?

On the first day of September in Brookfield, Missouri, sunrise is at 6:41 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm CDT.

How long on average sun shines in September in Brookfield?

In September, the average sunshine duration is 9.4h.

What is the UV index intensity in September in Brookfield?

In September, the average daily maximum UV index in Brookfield is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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 September
Brookfield, MO

Average temperature in September - Brookfield, MO
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in September
Brookfield, MO

Average pressure in September - Brookfield, 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 (29.9"Hg).

Average wind speed in September
Brookfield, MO

Average wind speed in September - Brookfield, MO
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in September
Brookfield, MO

Average humidity in September - Brookfield, MO
  • Average humidity in September: 76%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Brookfield, MO

Average rainfall in September - Brookfield, MO
  • Average rainfall in September: 1.06"

The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is December (0.43").

Average rainfall days in September
Brookfield, MO

Average rainfall days in September - Brookfield, MO
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (4.2 days).

Average snowfall in September
Brookfield, MO

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

The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Brookfield, MO

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

The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Brookfield, 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 24min).

  • Average sunshine in September: 9h and 2min

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

Average sunshine days in September
Brookfield, MO

Average sunshine days in September - Brookfield, MO
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in September
Brookfield, MO

Average UV index in September - Brookfield, 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
Brookfield, MO

Average cloud cover in September - Brookfield, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Brookfield, MO

Average visibility in September - Brookfield, 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).

Brookfield, Missouri, USA

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