Average Weather at Iqaluit Airport Canada
At Iqaluit Airport, the summers are cold and mostly cloudy and the winters are frigid, snowy, windy, and overcast. Over the course of the year, the temperature typically varies from -22°F to 54°F and is rarely below -38°F or above 65°F.
Based on the tourism score, the best time of year to visit Iqaluit Airport for warm-weather activities is from mid July to early August.
The warm season lasts for 3.2 months, from June 9 to September 16, with an average daily high temperature above 41°F. The hottest day of the year is July 24, with an average high of 54°F and low of 42°F.
The cold season lasts for 3.3 months, from December 15 to March 24, with an average daily high temperature below 2°F. The coldest day of the year is February 7, with an average low of -22°F and high of -10°F.
Average High and Low Temperature
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.
Average Hourly Temperature
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
At Iqaluit Airport, 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 at Iqaluit Airport begins around April 11 and lasts for 3.5 months, ending around July 27. On May 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 47% of the time, and overcast or mostly cloudy 53% of the time.
The cloudier part of the year begins around July 27 and lasts for 8.5 months, ending around April 11. On December 24, the cloudiest day of the year, the sky is overcast or mostly cloudy 76% of the time, and clear, mostly clear, or partly cloudy 23% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Iqaluit Airport varies throughout the year.
The wetter season lasts 4.3 months, from June 3 to October 13, with a greater than 18% chance of a given day being a wet day. The chance of a wet day peaks at 30% on August 14.
The drier season lasts 7.7 months, from October 13 to June 3. The smallest chance of a wet day is 5% on January 2.
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 Iqaluit Airport changes throughout the year.
Snow alone is the most common for 7.3 months, from October 15 to May 24. The highest chance of a day with snow alone is 13% on April 21.
Rain alone is the most common for 4.7 months, from May 24 to October 15. The highest chance of a day with rain alone is 30% on August 14.
Daily Chance of Precipitation
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. Iqaluit Airport experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 5.0 months, from May 22 to October 21, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 9, with an average total accumulation of 2.3 inches.
The rainless period of the year lasts for 7.0 months, from October 21 to May 22. The least rain falls around January 31, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
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. Iqaluit Airport experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 9.1 months, from September 14 to June 17, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around May 4, with an average total liquid-equivalent accumulation of 0.7 inches.
The snowless period of the year lasts for 2.9 months, from June 17 to September 14. The least snow falls around July 30, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Iqaluit Airport varies extremely over the course of the year. In 2019, the shortest day is December 21, with 4 hours, 20 minutes of daylight; the longest day is June 21, with 20 hours, 50 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 2:10 AM on June 20, and the latest sunrise is 7 hours, 13 minutes later at 9:23 AM on December 25. The earliest sunset is at 1:41 PM on December 18, and the latest sunset is 9 hours, 20 minutes later at 11:01 PM on June 22.
Daylight saving time (DST) is observed at Iqaluit Airport during 2019, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.
Sunrise & Sunset with Twilight and Daylight Saving Time
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 Iqaluit Airport, 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.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Iqaluit Airport experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 8.8 months, from September 14 to June 8, with average wind speeds of more than 10.5 miles per hour. The windiest day of the year is April 30, with an average hourly wind speed of 11.6 miles per hour.
The calmer time of year lasts for 3.2 months, from June 8 to September 14. The calmest day of the year is July 13, with an average hourly wind speed of 9.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Iqaluit Airport varies throughout the year.
The wind is most often from the north for 2.4 weeks, from January 10 to January 27; for 1.9 weeks, from February 8 to February 21; for 1.7 weeks, from March 3 to March 15; for 2.4 weeks, from March 20 to April 6; for 1.3 weeks, from April 12 to April 21; for 1.4 weeks, from May 5 to May 15; and for 2.1 weeks, from November 21 to December 6, with a peak percentage of 34% on March 10. The wind is most often from the west for 1.7 weeks, from January 27 to February 8; for 1.4 weeks, from February 21 to March 3; for 5.0 days, from March 15 to March 20; for 6.0 days, from April 6 to April 12; for 1.7 weeks, from April 21 to May 3; for 2.5 months, from July 14 to September 29; for 1.7 weeks, from October 5 to October 17; for 3.1 weeks, from October 30 to November 21; and for 1.1 months, from December 6 to January 10, with a peak percentage of 33% on March 2. The wind is most often from the east for 2.0 days, from May 3 to May 5; for 2.0 months, from May 15 to July 14; for 6.0 days, from September 29 to October 5; and for 1.9 weeks, from October 17 to October 30, with a peak percentage of 29% on September 30.
Iqaluit 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 water temperature does not vary significantly over the course of the year, remaining within 2°F of 31°F throughout.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is at Iqaluit Airport 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 Iqaluit Airport for general outdoor tourist activities is from mid July to early August, with a peak score in the last 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 Iqaluit Airport for hot-weather activities is from mid to late July, with a peak score in the last week of July.
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 Iqaluit Airport typically lasts for 2.9 months (88 days), from around June 13 to around September 9, rarely starting before May 28 or after July 1, and rarely ending before August 23 or after September 27.
Time Spent in Various Temperature Bands and the Growing Season
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
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.
Growing Degree Days
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 3.0 months, from April 28 to July 27, with an average daily incident shortwave energy per square meter above 4.6 kWh. The brightest day of the year is June 2, with an average of 5.8 kWh.
The darker period of the year lasts for 4.3 months, from October 13 to February 23, with an average daily incident shortwave energy per square meter below 1.2 kWh. The darkest day of the year is December 21, with an average of 0.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Iqaluit Airport are 63.755 deg latitude, -68.553 deg longitude, and 72 ft elevation.
The topography within 2 miles of Iqaluit Airport contains significant variations in elevation, with a maximum elevation change of 594 feet and an average elevation above sea level of 149 feet. Within 10 miles contains significant variations in elevation (1,253 feet). Within 50 miles contains very significant variations in elevation (2,625 feet).
The area within 2 miles of Iqaluit Airport is covered by sparse vegetation (34%), bare soil (31%), and grassland (27%), within 10 miles by water (31%) and sparse vegetation (31%), and within 50 miles by sparse vegetation (41%) and bare soil (41%).
This report illustrates the typical weather at Iqaluit Airport, 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
Iqaluit 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.
In this case, the only station close and reliable enough to use as a fallback is Iqaluit Climate.
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.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.