This report describes the typical weather at the Sørkjosen Airport (Nordreisa, Norway) weather station over the course of an average year. It is based on the historical records from 2007 to 2012. Earlier records are either unavailable or unreliable.
Nordreisa 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 (56%), oceans and seas (30%), forests (10%), and grasslands (3%).
Over the course of a year, the temperature typically varies from 13°F to 61°F and is rarely below 1°F or above 69°F.
The warm season lasts from June 15 to September 14 with an average daily high temperature above 53°F. The hottest day of the year is August 3, with an average high of 61°F and low of 50°F.
The cold season lasts from December 25 to March 4 with an average daily high temperature below 30°F. The coldest day of the year is February 14, with an average low of 13°F and high of 22°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, Nordreisa 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 68 days, from May 18 to July 25.
In winter, the Sun is continuously below the horizon for 49 days, from November 27 to January 15.
Daylight saving 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 ranges from 70% (partly cloudy) to 81% (mostly cloudy). The sky is cloudiest on July 18 and clearest on January 30. The clearer part of the year begins around December 8. The cloudier part of the year begins around April 1.
On January 30, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 22% of the time, and overcast or mostly cloudy 22% of the time.
On July 18, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 42% of the time, and clear or mostly clear 7% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around September 30, occurring in 57% of days. Precipitation is least likely around January 24, occurring in 34% of days.
Over the entire year, the most common forms of precipitation are light rain, light snow, moderate rain, and moderate snow.
Light rain is the most severe precipitation observed during 37% of those days with precipitation. It is most likely around September 25, when it is observed during 31% of all days.
Light snow is the most severe precipitation observed during 20% of those days with precipitation. It is most likely around March 24, when it is observed during 21% of all days.
Moderate rain is the most severe precipitation observed during 19% of those days with precipitation. It is most likely around July 15, when it is observed during 17% of all days.
Moderate snow is the most severe precipitation observed during 15% of those days with precipitation. It is most likely around February 24, when it is observed during 16% of all days.
During the warm season, which lasts from June 15 to September 14, there is a 48% 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 (56% of days with precipitation have at worst light rain), moderate rain (30%), and drizzle (11%).
During the cold season, which lasts from December 25 to March 4, there is a 36% 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 snow (44% of days with precipitation have at worst light snow), moderate snow (32%), light rain (12%), and moderate rain (7%).
The likelihood of snow falling is highest around March 24, occurring in 35% of days. The season in which it is relatively likely for snow to fall spans from October 13 to May 14.
During peak snow season, accumulation at this location on a given day is very likely. The chances of there being snow on the ground are highest around January 19, occurring 91% of the time. The season in which snow is relatively likely to be on the ground spans from November 4 to May 6.
The snow is typically at its deepest on April 1, with a median depth of 17.2"; the depth exceeds 29.5" only one year out of ten.
The relative humidity typically ranges from 50% (comfortable) to 91% (very humid) over the course of the year, rarely dropping below 38% (comfortable) and reaching as high as 95% (very humid).
The air is driest around April 16, at which time the relative humidity drops below 55% (mildly humid) three days out of four; it is most humid around August 4, exceeding 89% (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 4°F (dry) to 51°F (very comfortable) and is rarely below -8°F (dry) or above 55°F (very comfortable).
Over the course of the year typical wind speeds vary from 0 mph to 23 mph (calm to fresh breeze), rarely exceeding 30 mph (strong breeze).
The highest average wind speed of 14 mph (moderate breeze) occurs around January 26, at which time the average daily maximum wind speed is 23 mph (fresh breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around August 4, at which time the average daily maximum wind speed is 13 mph (moderate breeze).