October Weather at Norfolk International Airport United States

Daily high temperatures decrease by 9°F, from 75°F to 66°F, rarely falling below 55°F or exceeding 84°F.

Daily low temperatures decrease by 11°F, from 61°F to 51°F, rarely falling below 41°F or exceeding 70°F.

For reference, on July 20, the hottest day of the year, temperatures at Norfolk International Airport typically range from 74°F to 88°F, while on January 29, the coldest day of the year, they range from 34°F to 49°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.

Hashtpar, Iran (6,207 miles away) is the far-away foreign place with temperatures most similar to Norfolk International Airport (view comparison).

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The month of October at Norfolk International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 37% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 35% on October 12.

The clearest day of the month is October 12, with clear, mostly clear, or partly cloudy conditions 65% of the time.

For reference, on December 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on October 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Norfolk International Airport, the chance of a wet day over the course of October is gradually decreasing, starting the month at 25% and ending it at 22%.

For reference, the year's highest daily chance of a wet day is 45% on August 4, and its lowest chance is 21% on October 19.

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 Norfolk International Airport is decreasing, starting the month at 3.8 inches, when it rarely exceeds 7.2 inches or falls below 1.1 inches, and ending the month at 3.1 inches, when it rarely exceeds 6.2 inches or falls below 0.8 inches.

Over the course of October at Norfolk International 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, 7 minutes, implying an average daily decrease of 2 minutes, 14 seconds, and weekly decrease of 15 minutes, 38 seconds.

The shortest day of the month is October 31, with 10 hours, 40 minutes of daylight and the longest day is October 1, with 11 hours, 47 minutes of daylight.

The earliest sunrise of the month at Norfolk International Airport is 7:00 AM on October 1 and the latest sunrise is 28 minutes later at 7:28 AM on October 31.

The latest sunset is 6:47 PM on October 1 and the earliest sunset is 39 minutes earlier at 6:08 PM on October 31.

Daylight saving time is observed at Norfolk International 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 5:45 AM and sets 14 hours, 42 minutes later, at 8:27 PM, while on December 21, the shortest day of the year, it rises at 7:14 AM and sets 9 hours, 38 minutes later, at 4:52 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 Norfolk International Airport is very rapidly decreasing during October, falling from 26% to 4% over the course of the month.

For reference, on July 24, the muggiest day of the year, there are muggy conditions 84% of the time, while on February 10, 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 Norfolk International Airport is gradually increasing during October, increasing from 10.6 miles per hour to 11.3 miles per hour over the course of the month.

For reference, on February 26, the windiest day of the year, the daily average wind speed is 12.5 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 8.6 miles per hour.

The hourly average wind direction at Norfolk International Airport throughout October is predominantly from the north, with a peak proportion of 36% on October 28.

Norfolk International 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 Norfolk International Airport is rapidly decreasing during October, falling by 9°F, from 71°F to 63°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 Norfolk International Airport typically lasts for 8.5 months (259 days), from around March 15 to around November 29, rarely starting before February 22 or after April 3, and rarely ending before November 9 or after December 19.

The month of October at Norfolk International Airport is reliably fully within the growing season.

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 Norfolk International Airport are increasing during October, increasing by 389°F, from 4,262°F to 4,651°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 Norfolk International Airport is decreasing during October, falling by 1.1 kWh, from 4.5 kWh to 3.4 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Norfolk International Airport are 36.895 deg latitude, -76.200 deg longitude, and 20 ft elevation.

The topography within 2 miles of Norfolk International Airport is essentially flat, with a maximum elevation change of 69 feet and an average elevation above sea level of 11 feet. Within 10 miles is essentially flat (102 feet). Within 50 miles also contains only modest variations in elevation (197 feet).

The area within 2 miles of Norfolk International Airport is covered by artificial surfaces (86%), within 10 miles by artificial surfaces (52%) and water (42%), and within 50 miles by water (48%) and trees (21%).