September weather forecast
Kalamazoo, MI

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A beautiful bank on river Kalamazoo in Michigan, with a view of a ship and the Douglas Lighthouse
A beautiful bank on river Kalamazoo in Michigan, with a view of a ship and the Douglas Lighthouse

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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Kalamazoo in September?

The high-temperature, in September, in Kalamazoo, records 72.5°F (22.5°C), while the low-temperature is 53.4°F (11.9°C).

What is the average humidity in September in Kalamazoo?

The average relative humidity in September in Kalamazoo is 79%.

How much does it rain in Kalamazoo in September?

In Kalamazoo, Michigan, in September, during 12.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Kalamazoo?

May through September are months without snowfall in Kalamazoo, Michigan.

Does it snow in Kalamazoo in September?

In Kalamazoo, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Kalamazoo?

The average day length in September is 12h and 28min.

When are sunrise and sunset in September in Kalamazoo?

On the first day of September in Kalamazoo, Michigan, sunrise is at 7:08 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:25 pm EDT.

How long on average sun shines in September in Kalamazoo?

In Kalamazoo, Michigan, the average sunshine duration in September is 8.1h.

What is the UV index intensity in September in Kalamazoo?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kalamazoo, MI

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Kalamazoo, MI
  • Average daylight in September: 12h and 3min

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 1min

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 - 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 - 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 - 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 - 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).

Kalamazoo, Michigan, USA

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