Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September witnesses a gentle descent in average high-temperature, descending from August's warm 84.6°F (29.2°C) to a still moderately hot 78.1°F (25.6°C). In the month of September, the average temperature in Lake Annette, Missouri, dips to a moderate 59.5°F (15.3°C) during the night.Humidity
In Lake Annette, the average relative humidity in September is 76%.Rainfall
In September, in Lake Annette, the rain falls for 9 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. In Lake Annette, during the entire year, the rain falls for 99.4 days and collects up to 11.02" (280mm) of precipitation.Snowfall
April, June through September are months without snowfall.Daylight
In Lake Annette, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:47 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Lake Annette, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What are the temperatures in Lake Annette in September?
What is the average humidity in September in Lake Annette?
How many days does it rain in September in Lake Annette?
When it does not snow in Lake Annette?
Does it snow in Lake Annette in September?
What is the average length of the day in September in Lake Annette?
When are sunrise and sunset in September in Lake Annette?
How many hours of sunshine does Lake Annette have in September?
What is the UV index intensity in September in Lake Annette?
Average temperature in September
Lake Annette, MO
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Lake Annette, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Lake Annette, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Lake Annette, MO
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in September
Lake Annette, MO
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in September
Lake Annette, MO
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Lake Annette, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in September
Lake Annette, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Annette, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Lake Annette, MO
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is May (15 days).
Average UV index in September
Lake Annette, 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, November and December (UV index 2).
Average cloud cover in September
Lake Annette, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Lake Annette, 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).
Lake Annette, Missouri, USA
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