September weather forecast
Lulu, MO

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Weather in September

September, the first month of the autumn in Lulu, is also a moderately hot month, with an average temperature ranging between min 60.8°F (16°C) and max 81.9°F (27.7°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from a hot 88.3°F (31.3°C) in August to a warm 81.9°F (27.7°C). In September, the temperature drops to an average of 60.8°F (16°C) at night.

Heat index

September's heat index is appraised at a hot 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

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

Rainfall

September is the month with the least rainfall in Lulu, Missouri. Rain falls for 12 days and accumulates 1.57" (40mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of September, sunrise is at 6:36 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index value 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 maximum UV index of 5 leads to the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

Lulu in September has an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 60.8°F (16°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.57" (40mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 12 days. Throughout September, 1.57" (40mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Lulu have in September?

In Lulu, Missouri, the average day length in September is 12h and 24min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:33 pm. On the last day of the month, in Lulu, sunrise is at 7:00 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Lulu have in September?

In September, the average sunshine duration is 9.4h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Lulu, MO

Average temperature in September - Lulu, MO
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in September
Lulu, MO

Average pressure in September - Lulu, 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 (29.93"Hg).

Average wind speed in September
Lulu, MO

Average wind speed in September - Lulu, MO
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January, February, March and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in September
Lulu, MO

Average humidity in September - Lulu, MO
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Lulu, MO

Average rainfall in September - Lulu, MO
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in September
Lulu, MO

Average rainfall days in September - Lulu, MO
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Lulu, MO

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

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Lulu, MO

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

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Lulu, MO

Average sunshine days in September - Lulu, MO
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in September
Lulu, MO

Average UV index in September - Lulu, 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 and December (UV index 2).

Average cloud cover in September
Lulu, MO

Average cloud cover in September - Lulu, MO
  • Average cloud cover in September: 31

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Lulu, MO

Average visibility in September - Lulu, MO
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).

Lulu, Missouri, USA

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