Average Weather at Sørkjosen Airport Norway

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At Sørkjosen Airport, the summers are short, cool, and mostly cloudy and the winters are long, freezing, snowy, windy, and overcast. Over the course of the year, the temperature typically varies from 13°F to 59°F and is rarely below -2°F or above 70°F.

The warm season lasts for 2.8 months, from June 14 to September 7, with an average daily high temperature above 52°F. The hottest day of the year is July 24, with an average high of 59°F and low of 47°F.

The cold season lasts for 4.3 months, from November 13 to March 23, with an average daily high temperature below 32°F. The coldest day of the year is January 25, with an average low of 13°F and high of 25°F.

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

At Sørkjosen Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Sørkjosen Airport begins around April 16 and lasts for 5.4 months, ending around September 29. On June 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 42% of the time, and overcast or mostly cloudy 58% of the time.

The cloudier part of the year begins around September 29 and lasts for 6.6 months, ending around April 16. On January 2, the cloudiest day of the year, the sky is overcast or mostly cloudy 81% of the time, and clear, mostly clear, or partly cloudy 19% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Sørkjosen Airport varies throughout the year.

The wetter season lasts 5.0 months, from September 10 to February 11, with a greater than 37% chance of a given day being a wet day. The chance of a wet day peaks at 45% on October 22.

The drier season lasts 7.0 months, from February 11 to September 10. The smallest chance of a wet day is 30% on April 23.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation at Sørkjosen Airport changes throughout the year.

Rain alone is the most common for 6.5 months, from April 15 to October 31. The highest chance of a day with rain alone is 39% on September 18.

Snow alone is the most common for 5.3 months, from November 5 to April 15. The highest chance of a day with snow alone is 24% on December 23.

Mixed snow and rain is the most common for 5.0 days, from October 31 to November 5. The highest chance of a day with mixed snow and rain is 15% on October 29.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Sørkjosen Airport experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Sørkjosen Airport. The most rain falls during the 31 days centered around July 17, with an average total accumulation of 2.7 inches.

The least rain falls around February 27, with an average total accumulation of 0.6 inches.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Sørkjosen Airport experiences significant seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 7.9 months, from September 23 to May 20, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 31, with an average total liquid-equivalent accumulation of 1.8 inches.

The snowless period of the year lasts for 4.1 months, from May 20 to September 23. The least snow falls around July 28, with an average total liquid-equivalent accumulation of 0.0 inches.

Due to its extreme latitude, Sørkjosen Airport experiences polar day (also known as the midnight Sun) during the summer and polar night during the winter. These are periods of time in which the sun is continuously above or below the horizon for more than one day. The precise start and end dates of polar day and night vary from year to year and depend on the precise location and elevation of the observer, and the local topography.

In the summer at Sørkjosen Airport during 2017, the Sun is continuously above the horizon for 2.3 months, rising at 12:50 AM on May 17, and not setting again until 12:14 AM on July 27.

In the winter at Sørkjosen Airport during 2017, the Sun is continuously below the horizon for 1.7 months, setting at 11:34 AM on November 26, and not rising again until 11:45 AM on January 15.

Daylight saving time (DST) is observed at Sørkjosen Airport during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.

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 perceived humidity level at Sørkjosen Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

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 Sørkjosen Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.3 months, from October 12 to April 20, with average wind speeds of more than 5.0 miles per hour. The windiest day of the year is January 28, with an average hourly wind speed of 6.6 miles per hour.

The calmer time of year lasts for 5.7 months, from April 20 to October 12. The calmest day of the year is August 1, with an average hourly wind speed of 3.6 miles per hour.

The predominant average hourly wind direction at Sørkjosen Airport varies throughout the year.

The wind is most often from the west for 3.0 months, from May 15 to August 15, with a peak percentage of 34% on June 14. The wind is most often from the south for 9.0 months, from August 15 to May 15, with a peak percentage of 47% on January 1.

Sørkjosen 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.5 months, from July 5 to September 19, with an average temperature above 48°F. The day of the year with the warmest water is August 9, with an average temperature of 51°F.

The time of year with cooler water lasts for 4.3 months, from January 6 to May 14, with an average temperature below 41°F. The day of the year with the coolest water is March 26, with an average temperature of 38°F.

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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 2.6 months, from May 10 to July 30, with an average daily incident shortwave energy per square meter above 4.2 kWh. The brightest day of the year is June 17, with an average of 5.3 kWh.

The darker period of the year lasts for 5.5 months, from September 29 to March 12, with an average daily incident shortwave energy per square meter below 1.1 kWh. The darkest day of the year is January 1, with an average of 0.0 kWh.

For the purposes of this report, the geographical coordinates of Sørkjosen Airport are 69.786 deg latitude, 20.961 deg longitude, and 531 ft elevation.

The topography within 2 miles of Sørkjosen Airport contains large variations in elevation, with a maximum elevation change of 2,546 feet and an average elevation above sea level of 492 feet. Within 10 miles contains large variations in elevation (4,301 feet). Within 50 miles also contains extreme variations in elevation (5,991 feet).

The area within 2 miles of Sørkjosen Airport is covered by trees (26%), water (24%), sparse vegetation (21%), and artificial surfaces (11%), within 10 miles by sparse vegetation (29%) and trees (26%), and within 50 miles by sparse vegetation (31%) and water (29%).

This report illustrates the typical weather at Sørkjosen Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Sørkjosen Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back are Tromsø Airport, Langnes; Alta Lufthavn; Bardufoss Airport; Enontekiö Airport; Hammerfest Airport; Lakselv Banak Airport; and Andøya Andenes Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.