Summer Weather in Ferndale United States

Daily high temperatures are around 61°F, rarely falling below 55°F or exceeding 67°F.

Daily low temperatures are around 50°F, rarely falling below 43°F or exceeding 56°F. The highest daily average low temperature is 51°F on August 15.

For reference, on September 10, the hottest day of the year, temperatures in Ferndale typically range from 49°F to 62°F, while on December 22, the coldest day of the year, they range from 42°F to 55°F.

The figure below shows you a compact characterization of the hourly average summer temperatures. 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.

Ancud, Chile (6,519 miles away) and Cygnet, Australia (7,995 miles) are the far-away foreign places with temperatures most similar to Ferndale (view comparison).

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The summer in Ferndale experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 38% to 16%. The lowest chance of overcast or mostly cloudy conditions is 11% on August 2.

The clearest day of the summer is August 2, with clear, mostly clear, or partly cloudy conditions 89% of the time.

For reference, on January 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, while on August 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ferndale, the chance of a wet day over the course of the summer is rapidly decreasing, starting the season at 11% and ending it at 4%.

For reference, the year's highest daily chance of a wet day is 46% on December 13, and its lowest chance is 1% on August 3.

Rainfall

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

The average sliding 31-day rainfall during the summer in Ferndale is decreasing, starting the season at 1.0 inches, when it rarely exceeds 2.9 inches, and ending the season at 0.4 inches, when it rarely exceeds 0.9 inches or falls below -0.0 inches.

The lowest average 31-day accumulation is 0.1 inches on July 29.

Over the course of the summer in Ferndale, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 48 minutes, implying an average daily decrease of 1 minute, 11 seconds, and weekly decrease of 8 minutes, 19 seconds.

The shortest day of the summer is August 31, with 13 hours, 6 minutes of daylight and the longest day is June 20, with 15 hours, 5 minutes of daylight.

The earliest sunrise of the summer in Ferndale is 5:45 AM on June 14 and the latest sunrise is 58 minutes later at 6:43 AM on August 31.

The latest sunset is 8:51 PM on June 26 and the earliest sunset is 1 hour, 2 minutes earlier at 7:49 PM on August 31.

Daylight saving time is observed in Ferndale during 2024, but it neither starts nor ends during the summer, so the entire season is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:46 AM and sets 15 hours, 5 minutes later, at 8:51 PM, while on December 21, the shortest day of the year, it rises at 7:37 AM and sets 9 hours, 16 minutes later, at 4:53 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 the summer of 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 in Ferndale is essentially constant during the summer, remaining around 0% throughout.

The lowest chance of a muggy day during the summer is 0% on June 17.

For reference, on May 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 in Ferndale is decreasing during the summer, decreasing from 11.5 miles per hour to 9.6 miles per hour over the course of the season.

For reference, on June 22, the windiest day of the year, the daily average wind speed is 11.9 miles per hour, while on October 5, the calmest day of the year, the daily average wind speed is 9.1 miles per hour.

The highest daily average wind speed during the summer is 11.9 miles per hour on June 22.

The hourly average wind direction in Ferndale throughout the summer is predominantly from the north, with a peak proportion of 86% on July 17.

Ferndale 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 in Ferndale is gradually increasing during the summer, rising by 2°F, from 53°F to 55°F, over the course of the season.

The highest average surface water temperature during the summer is 55°F on August 30.

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 in Ferndale typically lasts for 11 months (333 days), from around January 25 to around December 23, rarely starting after March 4, or ending before November 20.

The summer in Ferndale 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 in Ferndale are rapidly increasing during the summer, increasing by 468°F, from 353°F to 821°F, over the course of the season.

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 in Ferndale is gradually decreasing during the summer, falling by 0.9 kWh, from 7.4 kWh to 6.5 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 8.1 kWh on June 29.

For the purposes of this report, the geographical coordinates of Ferndale are 40.576 deg latitude, -124.264 deg longitude, and 52 ft elevation.

The topography within 2 miles of Ferndale contains very significant variations in elevation, with a maximum elevation change of 988 feet and an average elevation above sea level of 192 feet. Within 10 miles contains very significant variations in elevation (2,602 feet). Within 50 miles contains large variations in elevation (5,866 feet).

The area within 2 miles of Ferndale is covered by cropland (49%) and trees (41%), within 10 miles by trees (34%) and water (26%), and within 50 miles by water (54%) and trees (30%).