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 in Niles sees a slight reduction in average high-temperature, with a shift from a warm 78.4°F (25.8°C) in August to an agreeable 72.7°F (22.6°C). During the month of September, the temperature generally drops to a low average of 56.3°F (13.5°C).Humidity
The average relative humidity in September in Niles is 79%.Rainfall
In Niles, in September, during 13.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Niles, there are 149.1 rainfall days, and 21.73" (552mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Niles.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 7:11 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:27 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In Niles, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Niles?
What is the average humidity in September in Niles?
How many days does it rain in September in Niles?
When it does not snow in Niles?
Does it snow in Niles in September?
How many hours of daylight does Niles have in September?
When is the sunrise / sunset in September in Niles?
How many hours of sunshine does Niles have in September?
What is the UV index reading in September in Niles?
Average temperature in September
Niles, MI
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Niles, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Niles, MI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Niles, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Niles, MI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Niles, MI
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Niles, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Niles, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Niles, 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 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Niles, MI
- Average sunshine days in September: 14 days
The month with the most sunshine days is March (14.1 days).
The month with the least sunshine days is January (9.7 days).
Average UV index in September
Niles, 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
Niles, MI
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in September
Niles, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Niles, Michigan, USA
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