Grand Rapids
Michigan, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Grand Rapids, MI

The vast cityscape of Grand Rapids, a moderately large town in Michigan, and two visible bridges across the river, on a warm and cool, cloudy day
The vast cityscape of Grand Rapids, a moderately large town in Michigan, and two visible bridges across the river, on a warm and cool, cloudy day
October, the same as September, in Grand Rapids, Michigan, is a moderate autumn month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 58.3°F (14.6°C).

Temperature

In Grand Rapids, the average high-temperature drops, from a pleasant 72°F (22.2°C) in September, to a moderate 58.3°F (14.6°C). In October, the average low-temperature is 44.2°F (6.8°C).

Humidity

In October, the average relative humidity is 77%.

Rainfall

In Grand Rapids, Michigan, in October, it is raining for 10.3 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, in Grand Rapids, there are 103.5 rainfall days, and 9.02" (229mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Grand Rapids.

Daylight

The average length of the day in Grand Rapids, Michigan, is 11h.

Sunshine

In Grand Rapids, the average sunshine is 5.4h.

UV index

The average daily maximum UV index in Grand Rapids is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in October in Grand Rapids?

The average high-temperature, in October, in Grand Rapids, Michigan, is 58.3°F (14.6°C), while the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in October in Grand Rapids?

The average relative humidity in October in Grand Rapids is 77%.

How much does it rain in Grand Rapids in October?

In Grand Rapids, during October, the rain falls for 10.3 days and regularly aggregates up to 1.1" (28mm) of precipitation.

Does it snow in Grand Rapids in October?

In Grand Rapids, Michigan, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in Grand Rapids?

May through October are months without snowfall in Grand Rapids, Michigan.

What is the average length of the day in October in Grand Rapids?

In October, the average length of the day is 11h.

How many hours of sunshine does Grand Rapids have in October?

The average sunshine in October is 5.4h.

What is the UV index intensity in October in Grand Rapids?

The average daily maximum UV index in October in Grand Rapids, Michigan, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in October - Grand Rapids, MI
  • Average high temperature in October: 58.3°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 (27.7°F).

  • Average low temperature in October: 44.2°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 (18.7°F).

Average humidity in October - Grand Rapids, MI
  • Average humidity in October: 77%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).

Average rainfall in October - Grand Rapids, MI
  • Average rainfall in October: 1.1"

The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the lowest rainfall) is March (0.47").

Average rainfall days in October - Grand Rapids, MI
  • Average rainfall days in October: 10.3 days

The month with the highest number of rainy days is May (13 days).
The month with the lowest number of rainy days is February (3.8 days).

Average snowfall in October - Grand Rapids, MI
  • Average snowfall in October: 0"

The month with the highest snowfall is January (1.57").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in October - Grand Rapids, MI
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (11.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in October / Average sunshine in October - Grand Rapids, MI
  • Average daylight in October: 11h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in October: 5.4h

The month with most sunshine is July (Average sunshine: 10.3h).
The month with least sunshine is January (Average sunshine: 2.3h).

Average UV index in October - Grand Rapids, MI
  • Average UV index in October: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 1).