October Weather at Birchwood Airport United States

Daily high temperatures decrease by 15°F, from 49°F to 34°F, rarely falling below 22°F or exceeding 55°F.

Daily low temperatures decrease by 14°F, from 36°F to 21°F, rarely falling below 6°F or exceeding 44°F.

For reference, on July 12, the hottest day of the year, temperatures at Birchwood Airport typically range from 52°F to 67°F, while on January 20, the coldest day of the year, they range from 10°F to 22°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.

Forsbacka, Sweden (3,707 miles away) is the far-away foreign place with temperatures most similar to Birchwood Airport (view comparison).

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The month of October at Birchwood Airport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 59% to 54%.

The clearest day of the month is October 31, with clear, mostly clear, or partly cloudy conditions 46% of the time.

For reference, on July 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 64%, while on March 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Birchwood Airport, the chance of a wet day over the course of October is very rapidly decreasing, starting the month at 40% and ending it at 25%.

For reference, the year's highest daily chance of a wet day is 41% on September 18, and its lowest chance is 14% on March 27.

Over the course of October at Birchwood Airport, the chance of a day with only rain decreases from 38% to 13%, the chance of a day with mixed snow and rain increases from 1% to 3%, and the chance of a day with only snow increases from 1% to 9%.

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 Birchwood Airport is rapidly decreasing, starting the month at 2.8 inches, when it rarely exceeds 4.7 inches or falls below 1.2 inches, and ending the month at 1.1 inches, when it rarely exceeds 2.3 inches or falls below 0.2 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during October at Birchwood Airport is rapidly increasing, starting the month at 1.2 inches, when it rarely exceeds 4.7 inches or falls below -0.0 inches, and ending the month at 6.2 inches, when it rarely exceeds 14.9 inches or falls below 1.1 inches.

Over the course of October at Birchwood Airport, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 2 hours, 50 minutes, implying an average daily decrease of 5 minutes, 41 seconds, and weekly decrease of 39 minutes, 45 seconds.

The shortest day of the month is October 31, with 8 hours, 30 minutes of daylight and the longest day is October 1, with 11 hours, 20 minutes of daylight.

The earliest sunrise of the month at Birchwood Airport is 8:06 AM on October 1 and the latest sunrise is 1 hour, 20 minutes later at 9:26 AM on October 31.

The latest sunset is 7:26 PM on October 1 and the earliest sunset is 1 hour, 31 minutes earlier at 5:56 PM on October 31.

Daylight saving time is observed at Birchwood Airport during 2024, but it neither starts nor ends during October, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 4:15 AM and sets 19 hours, 28 minutes later, at 11:43 PM, while on December 21, the shortest day of the year, it rises at 10:15 AM and sets 5 hours, 23 minutes later, at 3:37 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 Birchwood Airport is essentially constant during October, remaining around 0% throughout.

For reference, on June 14, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, 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 Birchwood Airport is essentially constant during October, remaining within 0.1 miles per hour of 5.0 miles per hour throughout.

For reference, on January 8, the windiest day of the year, the daily average wind speed is 6.8 miles per hour, while on July 5, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.

The hourly average wind direction at Birchwood Airport throughout October is predominantly from the east, with a peak proportion of 59% on October 31.

Birchwood 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 Birchwood Airport is decreasing during October, falling by 7°F, from 46°F to 39°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 Birchwood Airport typically lasts for 4.7 months (144 days), from around May 1 to around September 22, rarely starting before April 16 or after May 16, and rarely ending before September 3 or after October 8.

The month of October at Birchwood Airport is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 26% to -0% 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 Birchwood Airport are essentially constant during October, remaining within 2°F of 826°F throughout.

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 Birchwood Airport is decreasing during October, falling by 1.0 kWh, from 1.9 kWh to 0.8 kWh, over the course of the month.