Climate and Average Weather Year Round at Fagernes Airport, Leirin Norway

At Fagernes Airport, Leirin, the summers are cool, wet, and mostly cloudy and the winters are long, freezing, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 7°F to 62°F and is rarely below -11°F or above 72°F.

Based on the tourism score, the best time of year to visit Fagernes Airport, Leirin for warm-weather activities is from early July to early August.

The warm season lasts for 3.1 months, from June 1 to September 3, with an average daily high temperature above 54°F. The hottest month of the year at Fagernes Airport, Leirin is July, with an average high of 61°F and low of 45°F.

The cold season lasts for 4.0 months, from November 13 to March 14, with an average daily high temperature below 31°F. The coldest month of the year at Fagernes Airport, Leirin is January, with an average low of 8°F and high of 24°F.

At Fagernes Airport, Leirin, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year at Fagernes Airport, Leirin begins around April 20 and lasts for 4.4 months, ending around August 31.

The clearest month of the year at Fagernes Airport, Leirin is June, during which on average the sky is clear, mostly clear, or partly cloudy 46% of the time.

The cloudier part of the year begins around August 31 and lasts for 7.7 months, ending around April 20.

The cloudiest month of the year at Fagernes Airport, Leirin is November, during which on average the sky is overcast or mostly cloudy 65% 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 Fagernes Airport, Leirin varies throughout the year.

The wetter season lasts 5.9 months, from May 13 to November 11, with a greater than 31% chance of a given day being a wet day. The month with the most wet days at Fagernes Airport, Leirin is July, with an average of 12.9 days with at least 0.04 inches of precipitation.

The drier season lasts 6.1 months, from November 11 to May 13. The month with the fewest wet days at Fagernes Airport, Leirin is February, with an average of 5.5 days with at least 0.04 inches of precipitation.

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 Fagernes Airport, Leirin changes throughout the year.

Rain alone is the most common for 6.3 months, from April 20 to October 29. The month with the most days of rain alone at Fagernes Airport, Leirin is July, with an average of 12.9 days.

Snow alone is the most common for 5.7 months, from October 29 to April 20. The month with the most days of snow alone at Fagernes Airport, Leirin is January, with an average of 6.8 days.

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. Fagernes Airport, Leirin experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.4 months, from April 9 to November 23, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain at Fagernes Airport, Leirin is July, with an average rainfall of 4.1 inches.

The rainless period of the year lasts for 4.6 months, from November 23 to April 9. The month with the least rain at Fagernes Airport, Leirin is January, with an average rainfall of 0.0 inches.

Snowfall

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

The snowy period of the year lasts for 8.2 months, from September 22 to May 27, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Fagernes Airport, Leirin is November, with an average snowfall of 14.0 inches.

The snowless period of the year lasts for 3.8 months, from May 27 to September 22. The least snow falls around July 24, with an average total accumulation of 0.0 inches.

The length of the day at Fagernes Airport, Leirin varies extremely over the course of the year. In 2024, the shortest day is December 21, with 5 hours, 31 minutes of daylight; the longest day is June 20, with 19 hours, 17 minutes of daylight.

The earliest sunrise is at 3:45 AM on June 19, and the latest sunrise is 5 hours, 51 minutes later at 9:36 AM on December 26. The earliest sunset is at 3:05 PM on December 16, and the latest sunset is 7 hours, 58 minutes later at 11:03 PM on June 22.

Daylight saving time (DST) is observed at Fagernes Airport, Leirin during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

The figure below presents a compact representation of key lunar data for 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.

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 Fagernes Airport, Leirin, 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 Fagernes Airport, Leirin experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from November 14 to April 13, with average wind speeds of more than 5.1 miles per hour. The windiest month of the year at Fagernes Airport, Leirin is January, with an average hourly wind speed of 6.2 miles per hour.

The calmer time of year lasts for 7.0 months, from April 13 to November 14. The calmest month of the year at Fagernes Airport, Leirin is July, with an average hourly wind speed of 4.1 miles per hour.

The predominant average hourly wind direction at Fagernes Airport, Leirin varies throughout the year.

The wind is most often from the south for 1.8 months, from June 27 to August 22, with a peak percentage of 35% on August 5. The wind is most often from the west for 10 months, from August 22 to June 27, with a peak percentage of 50% on January 1.

To characterize how pleasant the weather is at Fagernes Airport, Leirin throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Fagernes Airport, Leirin for general outdoor tourist activities is from early July to early August, with a peak score in the third week of July.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Fagernes Airport, Leirin for hot-weather activities is from mid to late July, with a peak score in the third week of July.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Fagernes Airport, Leirin typically lasts for 3.1 months (94 days), from around June 5 to around September 7, rarely starting before May 15 or after June 26, and rarely ending before August 17 or after September 28.

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.

Based on growing degree days alone, the first spring blooms at Fagernes Airport, Leirin should appear around June 20, only rarely appearing before June 5 or after July 8.

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 3.2 months, from April 29 to August 5, with an average daily incident shortwave energy per square meter above 4.8 kWh. The brightest month of the year at Fagernes Airport, Leirin is June, with an average of 5.9 kWh.

The darker period of the year lasts for 4.3 months, from October 13 to February 22, with an average daily incident shortwave energy per square meter below 1.3 kWh. The darkest month of the year at Fagernes Airport, Leirin is December, with an average of 0.2 kWh.