September weather forecast
Brooklyn Heights, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Brooklyn Heights, Missouri, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 61.2°F (16.2°C).

Temperature

In Brooklyn Heights, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's hot 86.7°F (30.4°C) to a warm 80.1°F (26.7°C). Brooklyn Heights observes an average low-temperature of 61.2°F (16.2°C) during September.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Brooklyn Heights, during September, the rain falls for 12 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Brooklyn Heights, during the entire year, the rain falls for 136.8 days and collects up to 25.79" (655mm) of precipitation.

Snowfall

In Brooklyn Heights, snow does not fall in April, June through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:48 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:01 pm CDT.

Sunshine

In Brooklyn Heights, Missouri, the average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

What is the average September temperature?

The high-temperature during September is 80.1°F (26.7°C) and the low-temperature is 61.2°F (16.2°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is estimated at 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Brooklyn Heights, in September, during 12 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

In Brooklyn Heights, snow does not fall in April, June through October.

What is the average length of the day in September in Brooklyn Heights?

In September, the average day length is 12h and 25min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:48 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:01 pm CDT.

How many hours of sunshine does Brooklyn Heights have in September?

In Brooklyn Heights, the average sunshine duration in September is 9.5h.

What is the UV index intensity in September?

In Brooklyn Heights, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Brooklyn Heights, MO

Average temperature in September - Brooklyn Heights, MO
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September
Brooklyn Heights, MO

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Brooklyn Heights, MO

Average wind speed in September - Brooklyn Heights, MO
  • Average wind speed in September: 7.5mph

The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in September
Brooklyn Heights, MO

Average humidity in September - Brooklyn Heights, 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
Brooklyn Heights, MO

Average rainfall in September - Brooklyn Heights, MO
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is December (0.98").

Average rainfall days in September
Brooklyn Heights, MO

Average rainfall days in September - Brooklyn Heights, MO
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is December (5.5 days).

Average snowfall in September
Brooklyn Heights, MO

Average snowfall in September - Brooklyn Heights, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in September
Brooklyn Heights, MO

Average snowfall days in September - Brooklyn Heights, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Brooklyn Heights, MO

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in September
Brooklyn Heights, MO

Average sunshine days in September - Brooklyn Heights, MO
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is July (12.2 days).

Average UV index in September
Brooklyn Heights, MO

Average UV index in September - Brooklyn Heights, MO
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Brooklyn Heights, MO

Average cloud cover in September - Brooklyn Heights, MO
  • Average cloud cover in September: 28

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Brooklyn Heights, MO

Average visibility in September - Brooklyn Heights, 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).

Brooklyn Heights, Missouri, USA

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