September weather forecastKalamazoo, MI
September
Weather in September
September in Kalamazoo is marked by the subtle transition from summer to fall. This is the time when the sweltering summer heat is replaced with milder temperatures and cool evening breezes. A considerable decrease in temperature is observed with the average highs settling around 72.5°F (22.5°C). The unique blend of summer remnants with the onset of fall makes September a unique month in Kalamazoo, Michigan. The comfortably cool weather carries on to October, allowing the fall colors to fully emerge.Temperature
With the commencement of September, Kalamazoo records a moderate temperature decline, with the average high easing from August's moderately hot 78.3°F (25.7°C) to a pleasant 72.5°F (22.5°C). During September, the nighttime temperature in Kalamazoo averages to a fresh 53.4°F (11.9°C).Humidity
In September, the average relative humidity in Kalamazoo is 79%.Rainfall
In Kalamazoo, in September, during 12.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 144.9 rainfall days, and 20" (508mm) of precipitation is accumulated.Snowfall
In Kalamazoo, snow does not fall in May through September.Daylight
In Kalamazoo, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:39 am and sunset at 7:25 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Kalamazoo is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kalamazoo, 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 (28.2°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Kalamazoo, 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
Kalamazoo, 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
Kalamazoo, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Kalamazoo, MI
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.52").
The driest months (with the least rainfall) are February and November (1.06").
Average rainfall days in September
Kalamazoo, MI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in September
Kalamazoo, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Kalamazoo, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kalamazoo, 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 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Kalamazoo, MI
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Kalamazoo, 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
Kalamazoo, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Kalamazoo, 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).
