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 mild shift in the average high-temperature occurs in September, reducing from a warm 74.3°F (23.5°C) in August to a pleasant 68.7°F (20.4°C). Rothbury observes an average low-temperature of 57.2°F (14°C) during September.Humidity
The average relative humidity in September is 77%.Rainfall
In September, in Rothbury, the rain falls for 12.4 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 142 rainfall days, and 25.98" (660mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Rothbury, Michigan.Daylight
The average length of the day in September in Rothbury is 12h and 29min.On the first day of September in Rothbury, Michigan, sunrise is at 7:10 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:27 pm EDT.
Sunshine
In Rothbury, Michigan, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Rothbury is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What are the temperatures in Rothbury in September?
What is the average humidity in September in Rothbury?
How much does it rain in Rothbury in September?
When it does not snow in Rothbury?
Does it snow in Rothbury in September?
How many hours of daylight does Rothbury have in September?
What time are sunrise and sunset in September in Rothbury?
How many hours of sunshine does Rothbury have in September?
What is the UV index reading in September in Rothbury?
Average temperature in September
Rothbury, MI
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is August (74.3°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Rothbury, 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 (29.92"Hg).
Average wind speed in September
Rothbury, MI
- Average wind speed in September: 10mph
The windiest month (with the highest average wind speed) is November (12.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Rothbury, MI
- Average humidity in September: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Rothbury, MI
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is October (3.58").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in September
Rothbury, MI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is October (17.8 days).
The month with the least rainy days is February (5 days).
Average snowfall in September
Rothbury, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.51").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Rothbury, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rothbury, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Rothbury, MI
- Average sunshine days in September: 14.8 days
The months with the most sunshine days are August and September (14.8 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in September
Rothbury, MI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Rothbury, MI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Rothbury, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Rothbury, Michigan, USA
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