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
The start of September comes with a small reduction in the average high-temperature, subtly receding from a moderately hot 77.5°F (25.3°C) in August to a pleasant 71.2°F (21.8°C). Throughout September, the average low-temperature in Rattle Run, Michigan, records at a moderate 55.4°F (13°C).Humidity
In September, the average relative humidity in Rattle Run, Michigan, is 78%.Rainfall
In Rattle Run, in September, it is raining for 13 days, with typically 1.38" (35mm) of accumulated precipitation. In Rattle Run, during the entire year, the rain falls for 138 days and collects up to 17.8" (452mm) of precipitation.Snowfall
In Rattle Run, snow does not fall in June through September.Daylight
In Rattle Run, Michigan, the average length of the day in September is 12h and 29min.On the first day of September in Rattle Run, sunrise is at 6:56 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September in Rattle Run is 8.1h.UV index
The average daily maximum UV index in September in Rattle Run is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Rattle Run?
What is the average humidity in September in Rattle Run?
How many days does it rain in September in Rattle Run?
When it does not snow in Rattle Run?
Does it snow in Rattle Run in September?
How many hours of daylight does Rattle Run have in September?
What time are sunrise and sunset in September in Rattle Run?
How many hours of sunshine does Rattle Run have in September?
What is the UV index intensity in September in Rattle Run?
Average temperature in September
Rattle Run, MI
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Rattle Run, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Rattle Run, MI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Rattle Run, MI
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in September
Rattle Run, MI
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Rattle Run, MI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Rattle Run, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rattle Run, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rattle Run, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Rattle Run, MI
- Average sunshine days in September: 14.2 days
The months with the most sunshine days are October and November (15 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in September
Rattle Run, MI
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Rattle Run, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Rattle Run, MI
- 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).
Rattle Run, Michigan, USA
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