September weather forecastBellevue, MI
September
Weather in September
September, the first month of the autumn in Bellevue, is also an agreeable month, with an average temperature fluctuating between 72.1°F (22.3°C) and 52.9°F (11.6°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's warm 77.9°F (25.5°C) to an agreeable 72.1°F (22.3°C). Bellevue observes an average low-temperature of 52.9°F (11.6°C) during September.Humidity
The average relative humidity in September in Bellevue is 79%.Rainfall
In Bellevue, in September, it is raining for 11.9 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, in Bellevue, there are 146.2 rainfall days, and 23.7" (602mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Bellevue.Daylight
The average length of the day in September in Bellevue is 12h and 28min.On the first day of the month, sunrise is at 7:05 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:36 am and sunset at 7:22 pm EDT.
Sunshine
In Bellevue, the average sunshine in September is 7.9h.UV index
In Bellevue, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bellevue, MI
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in September
Bellevue, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bellevue, MI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Bellevue, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Bellevue, MI
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.15").
The driest months (with the least rainfall) are February, November and December (1.38").
Average rainfall days in September
Bellevue, MI
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Bellevue, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bellevue, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bellevue, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Bellevue, MI
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is January (9.9 days).
Average UV index in September
Bellevue, MI
- Average UV index in September: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Bellevue, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Bellevue, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October and November (6mi).
The months with the lowest visibility are January, February, August, September and December (5mi).
