Average Weather in Flekkefjord Norway

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5. Flekkefjord

In Flekkefjord, the summers are cool and partly cloudy; the winters are long, chilly, windy, and mostly cloudy; and it is wet year round. Over the course of the year, the temperature typically varies from 25°F to 66°F and is rarely below 9°F or above 74°F.

The warm season lasts for 3.2 months, from June 4 to September 10, with an average daily high temperature above 59°F. The hottest day of the year is July 31, with an average high of 66°F and low of 52°F.

The cold season lasts for 4.1 months, from November 19 to March 22, with an average daily high temperature below 42°F. The coldest day of the year is February 8, with an average low of 25°F and high of 36°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.

In Flekkefjord, 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 in Flekkefjord begins around April 13 and lasts for 5.3 months, ending around September 23. On July 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 53% of the time, and overcast or mostly cloudy 47% of the time.

The cloudier part of the year begins around September 23 and lasts for 6.7 months, ending around April 13. On January 22, the cloudiest day of the year, the sky is overcast or mostly cloudy 71% of the time, and clear, mostly clear, or partly cloudy 28% 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 in Flekkefjord varies throughout the year.

The wetter season lasts 6.7 months, from August 23 to March 15, with a greater than 41% chance of a given day being a wet day. The chance of a wet day peaks at 53% on October 31.

The drier season lasts 5.3 months, from March 15 to August 23. The smallest chance of a wet day is 30% on May 1.

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 throughout the year is rain alone, with a peak probability of 52% on October 18.

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. Flekkefjord experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Flekkefjord. The most rain falls during the 31 days centered around October 28, with an average total accumulation of 7.0 inches.

The least rain falls around April 29, with an average total accumulation of 2.8 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. Flekkefjord experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 5.1 months, from November 8 to April 12, 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 23, with an average total liquid-equivalent accumulation of 0.9 inches.

The snowless period of the year lasts for 6.9 months, from April 12 to November 8. The least snow falls around July 25, with an average total liquid-equivalent accumulation of 0.0 inches.

The length of the day in Flekkefjord varies extremely over the course of the year. In 2017, the shortest day is December 21, with 6 hours, 22 minutes of daylight; the longest day is June 21, with 18 hours, 17 minutes of daylight.

The earliest sunrise is at 4:26 AM on June 18, and the latest sunrise is 4 hours, 55 minutes later at 9:21 AM on December 27. The earliest sunset is at 3:41 PM on December 15, and the latest sunset is 7 hours, 2 minutes later at 10:43 PM on June 23.

Daylight saving time (DST) is observed in Flekkefjord 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 in Flekkefjord, 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 in Flekkefjord experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 8 to March 30, with average wind speeds of more than 5.2 miles per hour. The windiest day of the year is January 23, with an average hourly wind speed of 6.2 miles per hour.

The calmer time of year lasts for 6.3 months, from March 30 to October 8. The calmest day of the year is July 14, with an average hourly wind speed of 4.1 miles per hour.

The predominant average hourly wind direction in Flekkefjord varies throughout the year.

The wind is most often from the east for 2.9 months, from February 11 to May 8; for 1.6 weeks, from October 6 to October 17; and for 1.1 months, from October 23 to November 26, with a peak percentage of 34% on March 1. The wind is most often from the west for 4.9 months, from May 8 to October 6; for 6.0 days, from October 17 to October 23; and for 2.5 months, from November 26 to February 11, with a peak percentage of 47% on July 3.

Flekkefjord 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 significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.7 months, from July 5 to September 25, with an average temperature above 57°F. The day of the year with the warmest water is August 12, with an average temperature of 61°F.

The time of year with cooler water lasts for 4.2 months, from December 23 to April 29, with an average temperature below 44°F. The day of the year with the coolest water is March 3, with an average temperature of 40°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 3.1 months, from May 7 to August 9, with an average daily incident shortwave energy per square meter above 5.0 kWh. The brightest day of the year is June 14, with an average of 6.2 kWh.

The darker period of the year lasts for 4.6 months, from October 14 to March 1, with an average daily incident shortwave energy per square meter below 1.4 kWh. The darkest day of the year is December 23, with an average of 0.2 kWh.

For the purposes of this report, the geographical coordinates of Flekkefjord are 58.297 deg latitude, 6.661 deg longitude, and 499 ft elevation.

The topography within 2 miles of Flekkefjord contains very significant variations in elevation, with a maximum elevation change of 1,260 feet and an average elevation above sea level of 364 feet. Within 10 miles also contains very significant variations in elevation (1,798 feet). Within 50 miles contains very significant variations in elevation (3,963 feet).

The area within 2 miles of Flekkefjord is covered by trees (65%), water (20%), and artificial surfaces (13%), within 10 miles by trees (49%) and water (23%), and within 50 miles by water (48%) and trees (23%).

This report illustrates the typical weather in Flekkefjord, 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

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Flekkefjord.

For each station, the records are corrected for the elevation difference between that station and Flekkefjord according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Flekkefjord is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Flekkefjord and a given station.

The stations contributing to this reconstruction are: Kristiansand Airport, Kjevik (52%, 84 kilometers, east) and Stavanger Airport, Sola (48%, 88 kilometers, northwest).

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.