Average Weather in February at Deadhorse Airport Alaska, United States
At Deadhorse Airport, the month of February is characterized by essentially constant daily high temperatures, with daily highs around -9°F throughout the month, rarely exceeding 15°F or dropping below -29°F. The lowest daily average high temperature is -9°F on February 9.
Daily low temperatures are around -21°F, rarely falling below -41°F or exceeding -1°F. The lowest daily average low temperature is -22°F on February 9.
For reference, on July 28, the hottest day of the year, temperatures at Deadhorse Airport typically range from 41°F to 56°F, while on February 9, the coldest day of the year, they range from -22°F to -9°F.
Average High and Low Temperature in February
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in February
The month of February at Deadhorse Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 87% throughout the month.
The clearest day of the month is February 18, with clear, mostly clear, or partly cloudy conditions 13% of the time.
For reference, on January 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on June 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 36%.
Cloud Cover Categories in February
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Deadhorse Airport, the chance of a wet day over the course of February is essentially constant, remaining around 4% throughout.
For reference, the year's highest daily chance of a wet day is 23% on August 15, and its lowest chance is 2% on April 1.
Probability of Precipitation in February
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during February at Deadhorse Airport is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.4 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in February
Due to its extreme latitude, Deadhorse 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.
Neither polar day nor polar night occur during the month of February.
Over the course of February at Deadhorse Airport, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 4 hours, 28 minutes, implying an average daily increase of 9 minutes, 56 seconds, and weekly increase of 1 hour, 9 minutes, 35 seconds.
The shortest day of the month is February 1, with 4 hours, 58 minutes of daylight and the longest day is February 28, with 9 hours, 27 minutes of daylight.
Hours of Daylight and Twilight in February
The latest sunrise of the month at Deadhorse Airport is 10:39 AM on February 1 and the earliest sunrise is 2 hours, 15 minutes earlier at 8:23 AM on February 28.
The earliest sunset is 3:37 PM on February 1 and the latest sunset is 2 hours, 13 minutes later at 5:50 PM on February 28.
Daylight saving time is observed at Deadhorse Airport during 2017, but it neither starts nor ends during February, so the entire month is in standard time.
Sunrise & Sunset with Twilight and Daylight Saving Time in February
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 chance that a given day will be muggy at Deadhorse Airport is essentially constant during February, remaining around 0% throughout.
Humidity Comfort Levels in February
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 Deadhorse Airport is essentially constant during February, remaining within 0.2 miles per hour of 6.5 miles per hour throughout.
For reference, on January 12, the windiest day of the year, the daily average wind speed is 6.8 miles per hour, while on July 29, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.
Average Wind Speed in February
Wind Direction in February
Deadhorse 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 surface water temperature at Deadhorse Airport is essentially constant during February, remaining around 29°F throughout.
The lowest average surface water temperature during February is 29°F on February 12.
Average Water Temperature in February
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 at Deadhorse Airport is gradually increasing during February, rising by 0.6 kWh, from 0.1 kWh to 0.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in February
For the purposes of this report, the geographical coordinates of Deadhorse Airport are 70.195 deg latitude, -148.465 deg longitude, and 49 ft elevation.
The topography within 2 miles of Deadhorse Airport is essentially flat, with a maximum elevation change of 46 feet and an average elevation above sea level of 51 feet. Within 10 miles is essentially flat (141 feet). Within 50 miles contains only modest variations in elevation (1,030 feet).
The area within 2 miles of Deadhorse Airport is covered by sparse vegetation (36%), grassland (31%), water (14%), and herbaceous vegetation (14%), within 10 miles by grassland (41%) and sparse vegetation (32%), and within 50 miles by water (39%) and grassland (36%).
This report illustrates the typical weather at Deadhorse Airport year round, 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
Deadhorse 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.
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.