August Weather at Suomussalmi Finland

Daily high temperatures decrease by 9°F, from 66°F to 57°F, rarely falling below 49°F or exceeding 75°F.

Daily low temperatures decrease by 7°F, from 50°F to 42°F, rarely falling below 33°F or exceeding 57°F.

For reference, on July 21, the hottest day of the year, temperatures at Suomussalmi typically range from 51°F to 68°F, while on February 3, the coldest day of the year, they range from 4°F to 17°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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.

Dillingham, United States (3,869 miles away); Y, United States (3,662 miles); and Maliotenam, Canada (3,309 miles) are the far-away foreign places with temperatures most similar to Suomussalmi (view comparison).

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The month of August at Suomussalmi experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 53% to 61%.

The clearest day of the month is August 6, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on January 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 87%, while on July 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 51%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Suomussalmi, the chance of a wet day over the course of August is rapidly decreasing, starting the month at 38% and ending it at 32%.

For reference, the year's highest daily chance of a wet day is 41% on July 8, and its lowest chance is 15% on March 4.

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 August at Suomussalmi is decreasing, starting the month at 3.1 inches, when it rarely exceeds 4.9 inches or falls below 1.6 inches, and ending the month at 2.5 inches, when it rarely exceeds 3.7 inches or falls below 1.2 inches.

Over the course of August at Suomussalmi, 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 3 hours, 27 minutes, implying an average daily decrease of 6 minutes, 54 seconds, and weekly decrease of 48 minutes, 16 seconds.

The shortest day of the month is August 31, with 14 hours, 43 minutes of daylight and the longest day is August 1, with 18 hours, 10 minutes of daylight.

The earliest sunrise of the month at Suomussalmi is 4:03 AM on August 1 and the latest sunrise is 1 hour, 38 minutes later at 5:41 AM on August 31.

The latest sunset is 10:14 PM on August 1 and the earliest sunset is 1 hour, 49 minutes earlier at 8:24 PM on August 31.

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

For reference, on June 20, the longest day of the year, the Sun rises at 2:08 AM and sets 21 hours, 55 minutes later, at 12:03 AM, while on December 21, the shortest day of the year, it rises at 10:12 AM and sets 3 hours, 39 minutes later, at 1:51 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 August 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 Suomussalmi is essentially constant during August, remaining around 0% throughout.

For reference, on July 26, the muggiest day of the year, there are muggy conditions 1% 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 Suomussalmi is essentially constant during August, remaining within 0.1 miles per hour of 4.5 miles per hour throughout.

For reference, on January 24, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on July 29, the calmest day of the year, the daily average wind speed is 4.3 miles per hour.

The wind direction at Suomussalmi during August is predominantly out of the south from August 1 to August 2, from August 12 to August 19, from August 19 to August 22, and from August 28 to August 31 and the west from August 2 to August 12 and from August 22 to August 28.

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 Suomussalmi typically lasts for 3.5 months (108 days), from around May 24 to around September 9, rarely starting before May 6 or after June 12, and rarely ending before August 18 or after September 30.

The month of August at Suomussalmi is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 98% to 70% 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 Suomussalmi are increasing during August, increasing by 189°F, from 600°F to 789°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 Suomussalmi is rapidly decreasing during August, falling by 1.7 kWh, from 4.7 kWh to 3.0 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Suomussalmi are 64.900 deg latitude, 29.017 deg longitude, and 722 ft elevation.

The topography within 2 miles of Suomussalmi contains only modest variations in elevation, with a maximum elevation change of 220 feet and an average elevation above sea level of 703 feet. Within 10 miles also contains only modest variations in elevation (384 feet). Within 50 miles contains only modest variations in elevation (935 feet).

The area within 2 miles of Suomussalmi is covered by trees (67%) and water (29%), within 10 miles by trees (78%) and water (17%), and within 50 miles by trees (83%).