This report describes the typical weather at the Harstad/Narvik Airport (Evenes, Norway) weather station over the course of an average year. It is based on the historical records from 1984 to 2012. Earlier records are either unavailable or unreliable.
Evenes has a humid subarctic continental climate with cool summers and no dry season. The area within 25 mi of this station is covered by tundra (48%), oceans and seas (30%), and forests (17%).
Over the course of a year, the temperature typically varies from 18Â°F to 62Â°F and is rarely below 2Â°F or above 72Â°F.
The warm season lasts from June 9 to September 6 with an average daily high temperature above 56Â°F. The hottest day of the year is July 25, with an average high of 62Â°F and low of 52Â°F.
The cold season lasts from November 13 to March 25 with an average daily high temperature below 35Â°F. The coldest day of the year is January 31, with an average low of 18Â°F and high of 28Â°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 0:00 hours of daylight; the longest day is June 20 with 24:00 hours of daylight.
Due to its extreme latitude, Evenes experiences polar day (also known as the midnight Sun) during summer and polar night during winter. 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 summer, the Sun is continuously above the horizon for 55 days, from May 24 to July 18.
In winter, the Sun is continuously below the horizon for 34 days, from December 4 to January 7.
Daylight savings time (DST) is observed in this location during 2012, starting in the spring on March 25 and ending in the fall on October 28.
The median cloud cover is 86% (mostly cloudy) and does not vary substantially over the course of the year.
On February 18, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 13% of the time, and overcast or mostly cloudy 23% of the time.
On September 30, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 37% of the time, and clear or mostly clear 4% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around October 2, occurring in 75% of days. Precipitation is least likely around July 6, occurring in 62% of days.
Over the entire year, the most common forms of precipitation are light rain, moderate rain, moderate snow, and light snow.
Light rain is the most severe precipitation observed during 28% of those days with precipitation. It is most likely around June 26, when it is observed during 35% of all days.
Moderate rain is the most severe precipitation observed during 24% of those days with precipitation. It is most likely around September 15, when it is observed during 33% of all days.
Moderate snow is the most severe precipitation observed during 23% of those days with precipitation. It is most likely around January 17, when it is observed during 35% of all days.
Light snow is the most severe precipitation observed during 21% of those days with precipitation. It is most likely around March 23, when it is observed during 28% of all days.
During the warm season, which lasts from June 9 to September 6, there is a 65% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light rain (51% of days with precipitation have at worst light rain) and moderate rain (41%).
During the cold season, which lasts from November 13 to March 25, there is a 71% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of moderate snow (44% of days with precipitation have at worst moderate snow), light snow (35%), light rain (10%), and moderate rain (9%).
The likelihood of snow falling is highest around February 6, occurring in 64% of days. The season in which it is relatively likely for snow to fall spans from October 14 to May 15.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 50% (comfortable) to 96% (very humid) over the course of the year, rarely dropping below 31% (comfortable) and reaching as high as 100% (very humid).
The air is driest around May 31, at which time the relative humidity drops below 59% (mildly humid) three days out of four; it is most humid around September 6, exceeding 94% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a year, the dew point typically varies from 11Â°F (dry) to 52Â°F (very comfortable) and is rarely below -5Â°F (dry) or above 57Â°F (comfortable).
The time of the year between July 10 and August 19 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of the year typical wind speeds vary from 0 mph to 14 mph (calm to moderate breeze), rarely exceeding 24 mph (strong breeze).
The highest average wind speed of 8 mph (gentle breeze) occurs around January 28, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around September 3, at which time the average daily maximum wind speed is 10 mph (gentle breeze).