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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 76.6°F (24.8°C) to a pleasant 70.7°F (21.5°C). In Keewahdin, an average low-temperature of 55.4°F (13°C) is recorded during September nights.Humidity
In September, the average relative humidity is 78%.Rainfall
In Keewahdin, during September, the rain falls for 11.8 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 123 rainfall days, and 13.7" (348mm) of precipitation is accumulated.Snowfall
In Keewahdin, Michigan, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:55 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September in Keewahdin is 8.2h.UV index
In Keewahdin, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Keewahdin?
What is the average humidity in September in Keewahdin?
How much does it rain in Keewahdin in September?
When it does not snow in Keewahdin?
What is the average length of the day in September in Keewahdin?
What time are sunrise and sunset in September in Keewahdin?
How many hours of sunshine does Keewahdin have in September?
What is the UV index intensity in September in Keewahdin?
Average temperature in September
Keewahdin, MI
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (27.9°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 (18.5°F).
Average pressure in September
Keewahdin, 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
Keewahdin, MI
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Keewahdin, MI
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Keewahdin, MI
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in September
Keewahdin, MI
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Keewahdin, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Keewahdin, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Keewahdin, 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: 2h and 54min).
Average sunshine days in September
Keewahdin, MI
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in September
Keewahdin, MI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Keewahdin, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Keewahdin, 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).
Keewahdin, Michigan, USA
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