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's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 78.8°F (26°C) to an agreeable 72.5°F (22.5°C). The mean low-temperature during September nights is a refreshing 56.3°F (13.5°C).Humidity
The average relative humidity in September is 76%.Rainfall
In Livonia, during September, the rain falls for 13.3 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Livonia, during the entire year, the rain falls for 155.1 days and collects up to 25.94" (659mm) of precipitation.Snowfall
In Livonia, snow does not fall in June through September.Daylight
In Livonia, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Livonia, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Livonia in September?
How many hours of daylight does Livonia have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Livonia, MI
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in September
Livonia, MI
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Livonia, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Livonia, MI
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May, July, August and October (75%).
Average rainfall in September
Livonia, MI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are February and December (1.42").
Average rainfall days in September
Livonia, MI
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Livonia, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Livonia, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Livonia, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Livonia, MI
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Livonia, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Livonia, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Livonia, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Livonia, Michigan, USA
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