September weather forecastDollar Bay, MI
September
Weather in September
September, the first month of the autumn in Dollar Bay, is still a refreshing month, with an average temperature ranging between min 52.3°F (11.3°C) and max 64.2°F (17.9°C).Temperature
Dollar Bay's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's agreeable 70.3°F (21.3°C) to a comfortable 64.2°F (17.9°C). Dollar Bay's temperature lowers to a mean of 52.3°F (11.3°C) during the nights in September.Humidity
The average relative humidity in September in Dollar Bay is 78%.Rainfall
In Dollar Bay, in September, it is raining for 14.4 days, with typically 1.65" (42mm) of accumulated precipitation. In Dollar Bay, during the entire year, the rain falls for 123.4 days and collects up to 21.1" (536mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Dollar Bay, sunrise is at 7:14 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 7:34 pm EDT.
Sunshine
The average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dollar Bay, MI
- Average high temperature in September: 64.2°F
The warmest month (with the highest average high temperature) is August (70.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is August (57.6°F).
The coldest months (with the lowest average low temperature) are January and February (15.1°F).
Average pressure in September
Dollar Bay, MI
- Average pressure in September: 29.99"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
Dollar Bay, MI
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is June (7.5mph).
Average humidity in September
Dollar Bay, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Dollar Bay, MI
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is October (2.28").
The driest months (with the least rainfall) are January, February and March (1.3").
Average rainfall days in September
Dollar Bay, MI
- Average rainfall days in September: 14.4 days
The months with the highest number of rainy days are September and October (14.4 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in September
Dollar Bay, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dollar Bay, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dollar Bay, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Dollar Bay, MI
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is January (5.3 days).
Average UV index in September
Dollar Bay, MI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Dollar Bay, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Dollar Bay, 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).
