September weather forecast
Pasadena Hills, MO

Share

Weather in September

September, the first month of the autumn in Pasadena Hills, is still a warm month, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 79.7°F (26.5°C).

Temperature

Pasadena Hills's progression into September involves a gentle drop in the average high-temperature, from a warm 85.5°F (29.7°C) in August to a still moderately hot 79.7°F (26.5°C). Pasadena Hills records an average low-temperature of 60.1°F (15.6°C) throughout the month of September.

Humidity

In Pasadena Hills, the average relative humidity in September is 73%.

Rainfall

In Pasadena Hills, in September, during 12 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Pasadena Hills, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

In Pasadena Hills, snow does not fall in April through October.

Daylight

In Pasadena Hills, Missouri, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Pasadena Hills in September?

During September, Pasadena Hills experiences an average high-temperature of 79.7°F (26.5°C) and a low-temperature of 60.1°F (15.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

How many days does it rain in September?

In Pasadena Hills, in September, during 12 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

In Pasadena Hills, snow does not fall in April through October.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

How long on average sun shines in September in Pasadena Hills?

In Pasadena Hills, the average sunshine duration in September is 9.6h.

What is the UV index intensity in September?

In Pasadena Hills, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to 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
Pasadena Hills, MO

Average temperature in September - Pasadena Hills, MO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in September
Pasadena Hills, MO

Average pressure in September - Pasadena Hills, 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 (29.92"Hg).

Average wind speed in September
Pasadena Hills, MO

Average wind speed in September - Pasadena Hills, MO
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Pasadena Hills, MO

Average humidity in September - Pasadena Hills, MO
  • Average humidity in September: 73%

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

Average rainfall in September
Pasadena Hills, MO

Average rainfall in September - Pasadena Hills, MO
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in September
Pasadena Hills, MO

Average rainfall days in September - Pasadena Hills, MO
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in September
Pasadena Hills, MO

Average snowfall in September - Pasadena Hills, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Pasadena Hills, MO

Average snowfall days in September - Pasadena Hills, MO
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Pasadena Hills, MO

Average daylight in September / Average sunshine in September - Pasadena Hills, MO
  • Average daylight in September: 12h 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 September: 9h and 4min

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

Average sunshine days in September
Pasadena Hills, MO

Average sunshine days in September - Pasadena Hills, MO
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in September
Pasadena Hills, MO

Average UV index in September - Pasadena Hills, MO
  • Average UV index in September: 5

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 and December (UV index 2).

Average cloud cover in September
Pasadena Hills, MO

Average cloud cover in September - Pasadena Hills, MO
  • Average cloud cover in September: 28

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

Average visibility in September
Pasadena Hills, MO

Average visibility in September - Pasadena Hills, 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).

Pasadena Hills, Missouri, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location