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 agreeable 72.5°F (22.5°C) to a comfortable 66°F (18.9°C). Throughout the month of September, the nighttime temperature in Harris dips to an average of 52.7°F (11.5°C).Humidity
In Harris, the average relative humidity in September is 80%.Rainfall
In Harris, in September, during 12.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 139.7 rainfall days, and 24.17" (614mm) of precipitation is accumulated.Snowfall
In Harris, snow does not fall in May through September.Daylight
In Harris, the average length of the day in September is 12h and 31min.On the first day of September in Harris, sunrise is at 6:11 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:30 pm CDT.
Sunshine
The average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index in Harris is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Harris?
What is the average humidity in September in Harris?
How much does it rain in Harris in September?
When it does not snow in Harris?
Does it snow in Harris in September?
How many hours of daylight does Harris have in September?
When are sunrise and sunset in September in Harris?
How many hours of sunshine does Harris have in September?
How high is the UV index in September in Harris?
Average temperature in September
Harris, MI
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is July (72.7°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in September
Harris, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Harris, MI
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is November (11mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in September
Harris, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Harris, MI
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Harris, MI
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Harris, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Harris, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harris, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Harris, MI
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in September
Harris, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Harris, MI
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Harris, 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).
Harris, Michigan, USA
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