September weather forecastGalesburg, MI
September
Weather in September
September, the first month of the autumn in Galesburg, is also an agreeable month, with an average temperature fluctuating between 53.2°F (11.8°C) and 72.5°F (22.5°C).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a pleasant 72.5°F (22.5°C) from a moderately hot 78.3°F (25.7°C). Nighttime temperatures in September average to a fresh 53.2°F (11.8°C) in Galesburg.Humidity
The average relative humidity in September is 79%.Rainfall
In Galesburg, during September, the rain falls for 13 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Galesburg, during the entire year, the rain falls for 153.1 days and collects up to 25.16" (639mm) of precipitation.Snowfall
In Galesburg, Michigan, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:07 am and sunset at 8:15 pm. On the last day of September, in Galesburg, sunrise is at 7:38 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine in Galesburg is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Galesburg, MI
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Galesburg, 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
Galesburg, MI
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in September
Galesburg, MI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Galesburg, MI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are February, November and December (1.42").
Average rainfall days in September
Galesburg, MI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in September
Galesburg, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Galesburg, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Galesburg, 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: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Galesburg, MI
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is January (9.1 days).
Average UV index in September
Galesburg, MI
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Galesburg, MI
- Average cloud cover in September: 36
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
Galesburg, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
