October Weather at Detroit Metropolitan Wayne County Airport Michigan, United States

Daily high temperatures decrease by 12°F, from 67°F to 55°F, rarely falling below 43°F or exceeding 78°F.

Daily low temperatures decrease by 10°F, from 50°F to 40°F, rarely falling below 30°F or exceeding 60°F.

For reference, on July 18, the hottest day of the year, temperatures at Detroit Metropolitan Wayne County Airport typically range from 65°F to 83°F, while on January 29, the coldest day of the year, they range from 19°F to 32°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Odessa, Ukraine (5,104 miles away); Baksanenok, Russia (5,661 miles); and Soleh Bon, Iran (6,379 miles) are the far-away foreign places with temperatures most similar to Detroit Metropolitan Wayne County Airport (view comparison).

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The month of October at Detroit Metropolitan Wayne County Airport experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 37% to 47%.

The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 63% of the time.

For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 63%, while on August 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Detroit Metropolitan Wayne County Airport, the chance of a wet day over the course of October is decreasing, starting the month at 27% and ending it at 23%.

For reference, the year's highest daily chance of a wet day is 35% on June 14, and its lowest chance is 16% on February 3.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during October at Detroit Metropolitan Wayne County Airport is gradually decreasing, starting the month at 2.5 inches, when it rarely exceeds 4.3 inches or falls below 1.1 inches, and ending the month at 2.1 inches, when it rarely exceeds 3.5 inches or falls below 0.8 inches.

Over the course of October at Detroit Metropolitan Wayne County Airport, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 21 minutes, implying an average daily decrease of 2 minutes, 43 seconds, and weekly decrease of 18 minutes, 59 seconds.

The shortest day of the month is October 31, with 10 hours, 22 minutes of daylight and the longest day is October 1, with 11 hours, 43 minutes of daylight.

The earliest sunrise of the month at Detroit Metropolitan Wayne County Airport is 7:31 AM on October 1 and the latest sunrise is 35 minutes later at 8:05 AM on October 31.

The latest sunset is 7:13 PM on October 1 and the earliest sunset is 46 minutes earlier at 6:27 PM on October 31.

Daylight saving time is observed at Detroit Metropolitan Wayne County Airport during 2024, but it neither starts nor ends during October, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:57 AM and sets 15 hours, 16 minutes later, at 9:13 PM, while on December 21, the shortest day of the year, it rises at 7:59 AM and sets 9 hours, 5 minutes later, at 5:04 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for October 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy at Detroit Metropolitan Wayne County Airport is gradually decreasing during October, falling from 3% to 0% over the course of the month.

For reference, on July 31, the muggiest day of the year, there are muggy conditions 36% of the time, while on November 15, the least muggy day of the year, there are muggy conditions 0% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Detroit Metropolitan Wayne County Airport is increasing during October, increasing from 10.4 miles per hour to 11.8 miles per hour over the course of the month.

For reference, on January 15, the windiest day of the year, the daily average wind speed is 13.3 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.0 miles per hour.

The hourly average wind direction at Detroit Metropolitan Wayne County Airport throughout October is predominantly from the west, with a peak proportion of 38% on October 29.

Detroit Metropolitan Wayne County Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature at Detroit Metropolitan Wayne County Airport is rapidly decreasing during October, falling by 11°F, from 63°F to 53°F, over the course of the month.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Detroit Metropolitan Wayne County Airport typically lasts for 6.2 months (189 days), from around April 17 to around October 23, rarely starting before March 31 or after May 6, and rarely ending before October 5 or after November 11.

During October at Detroit Metropolitan Wayne County Airport, the chance that a given day is within the growing season is very rapidly decreasing falling from 95% to 29% over the course of the month.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Detroit Metropolitan Wayne County Airport are gradually increasing during October, increasing by 160°F, from 2,905°F to 3,065°F, over the course of the month.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Detroit Metropolitan Wayne County Airport is decreasing during October, falling by 1.5 kWh, from 4.1 kWh to 2.6 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Detroit Metropolitan Wayne County Airport are 42.222 deg latitude, -83.351 deg longitude, and 633 ft elevation.

The topography within 2 miles of Detroit Metropolitan Wayne County Airport is essentially flat, with a maximum elevation change of 36 feet and an average elevation above sea level of 632 feet. Within 10 miles is essentially flat (249 feet). Within 50 miles contains only modest variations in elevation (797 feet).

The area within 2 miles of Detroit Metropolitan Wayne County Airport is covered by artificial surfaces (86%), within 10 miles by artificial surfaces (73%) and cropland (18%), and within 50 miles by cropland (36%) and artificial surfaces (23%).