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 ushers in a minute temperature change, with average high-temperatures reducing from August's agreeable 72.9°F (22.7°C) to an enjoyable 66°F (18.9°C). The average low-temperature, in September, in Arnold, Michigan, is a fresh 50.2°F (10.1°C).Humidity
In Arnold, the average relative humidity in September is 80%.Rainfall
In Arnold, during September, the rain falls for 13.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 133.2 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
In Arnold, snow does not fall in June through September.Daylight
In September, the average length of the day in Arnold is 12h and 32min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:27 pm. On the last day of September, in Arnold, sunrise is at 7:48 am and sunset at 7:31 pm EDT.
Sunshine
In Arnold, the average sunshine in September is 7.5h.UV index
In Arnold, Michigan, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Guard yourself - Avoiding sunburn is suggested. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Arnold in September?
What is the average humidity in September in Arnold?
How many days does it rain in September in Arnold?
When it does not snow in Arnold?
Does it snow in Arnold in September?
What is the average length of the day in September in Arnold?
What time are sunrise and sunset in September in Arnold?
How long on average sun shines in September in Arnold?
What is the UV index reading in September in Arnold?
Average temperature in September
Arnold, MI
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is July (73.8°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is August (56.1°F).
The coldest months (with the lowest average low temperature) are January and February (12.9°F).
Average pressure in September
Arnold, MI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Arnold, MI
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.3mph).
Average humidity in September
Arnold, MI
- Average humidity in September: 80%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Arnold, MI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (2.6").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in September
Arnold, MI
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is August (15.7 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in September
Arnold, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Arnold, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (24 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arnold, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in September
Arnold, MI
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is January (5.9 days).
Average UV index in September
Arnold, MI
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Arnold, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Arnold, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).
Arnold, Michigan, USA
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