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
As August transitions into September, Dunham sees a gentle drop in the average high-temperature, transitioning from a warm 74.1°F (23.4°C) to a refreshing 66.2°F (19°C). Dunham, during September, witnesses an average low-temperature of 49.3°F (9.6°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Dunham, in September, during 14 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Dunham, Michigan, there are 112.5 rainfall days, and 22.68" (576mm) of precipitation is accumulated.Snowfall
In Dunham, Michigan, snow does not fall in June through September.Daylight
In Dunham, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:37 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September in Dunham is 7.7h.UV index
In September, the average daily maximum UV index in Dunham, Michigan, is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the average September temperature in Dunham?
What is the average humidity in September in Dunham?
How much does it rain in Dunham in September?
When it does not snow in Dunham?
Does it snow in Dunham in September?
How many hours of daylight does Dunham have in September?
When is the sunrise / sunset in September in Dunham?
How long on average sun shines in September in Dunham?
What is the UV index intensity in September in Dunham?
Average temperature in September
Dunham, MI
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in September
Dunham, MI
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Dunham, MI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.1mph).
Average humidity in September
Dunham, MI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Dunham, MI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in September
Dunham, MI
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (14.4 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Dunham, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dunham, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dunham, 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 42min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Dunham, MI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
Dunham, 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, February, March, November and December (UV index 1).
Average cloud cover in September
Dunham, MI
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Dunham, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Dunham, Michigan, USA
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