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Average Weather in Iqaluit Canada

In Iqaluit, 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 -37°F or above 65°F.

The warm season lasts for 3.3 months, from June 9 to September 17, with an average daily high temperature above 41°F. The hottest day of the year is July 27, with an average high of 54°F and low of 42°F.

The cold season lasts for 3.4 months, from December 14 to March 25, with an average daily high temperature below 3°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 daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in Iqaluit12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecfrigidfreezingchillycold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Iqaluit, 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 in Iqaluit begins around April 10 and lasts for 3.6 months, ending around July 28. 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 28 and lasts for 8.4 months, ending around April 10. 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 24% of the time.

Cloud Cover

Cloud Cover in Iqaluitclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecDec 2476%Dec 2476%May 2553%May 2553%Apr 1065%Apr 1065%Jul 2865%Jul 2865%overcastmostly cloudypartly cloudymostly clearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Iqaluit varies throughout the year.

The wetter season lasts 4.3 months, from June 4 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 4. 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 in Iqaluit changes throughout the year.

Snow alone is the most common for 7.2 months, from October 16 to May 24. The highest chance of a day with snow alone is 13% on April 21.

Rain alone is the most common for 4.8 months, from May 24 to October 16. The highest chance of a day with rain alone is 30% on August 14.

Daily Chance of Precipitation

Daily Chance of Precipitation in Iqaluitsnowrainsnow0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 1430%Aug 1430%Jan 25%Jan 25%May 2416%May 2416%Oct 1617%Oct 1617%Jan 15%Jan 15%snowmixedrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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. Iqaluit 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 February 3, with an average total accumulation of 0.0 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

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 experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 8.9 months, from September 17 to June 15, 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 3, with an average total liquid-equivalent accumulation of 0.7 inches.

The snowless period of the year lasts for 3.1 months, from June 15 to September 17. The least snow falls around July 28, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Iqaluit varies extremely over the course of the year. In 2017, 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 number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 2:10 AM on June 20, and the latest sunrise is 7 hours, 12 minutes later at 9:23 AM on December 25. The earliest sunset is at 1:41 PM on December 17, and the latest sunset is 9 hours, 19 minutes later at 11:00 PM on June 21.

Daylight saving time (DST) is observed in Iqaluit during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Iqaluit12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecJun 202:10 AMJun 202:10 AM11:00 PMJun 2111:00 PMJun 21Dec 171:41 PMDec 171:41 PM9:23 AMDec 259:23 AMDec 25Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

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 in Iqaluit, 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

Humidity Comfort Levels in Iqaluit0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 30%Jul 30%drydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 in Iqaluit experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.8 months, from September 13 to June 8, with average wind speeds of more than 5.6 miles per hour. The windiest day of the year is April 30, with an average hourly wind speed of 6.2 miles per hour.

The calmer time of year lasts for 3.2 months, from June 8 to September 13. The calmest day of the year is July 13, with an average hourly wind speed of 5.1 miles per hour.

Average Wind Speed

Average Wind Speed in Iqaluitwindywindy0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mph11 mphJanFebMarAprMayJunJulAugSepOctNovDecApr 306.2 mphApr 306.2 mphJul 135.1 mphJul 135.1 mphSep 135.6 mphSep 135.6 mphJun 85.6 mphJun 85.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Iqaluit varies throughout the year.

The wind is most often from the north for 1.5 months, from January 9 to February 24; for 1.7 months, from March 2 to April 22; for 1.4 weeks, from May 6 to May 16; and for 1.1 months, from November 5 to December 7, with a peak percentage of 34% on March 10. The wind is most often from the west for 6.0 days, from February 24 to March 2; for 1.4 weeks, from April 22 to May 2; for 2.5 months, from July 14 to September 29; for 1.4 weeks, from October 5 to October 15; for 5.0 days, from October 31 to November 5; and for 1.1 months, from December 7 to January 9, with a peak percentage of 33% on March 1. The wind is most often from the east for 4.0 days, from May 2 to May 6; for 1.9 months, from May 16 to July 14; for 6.0 days, from September 29 to October 5; and for 2.3 weeks, from October 15 to October 31, with a peak percentage of 29% on September 30.

Wind Direction

Wind Direction in IqaluitNNNEWENW0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Iqaluit 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

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 28, 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 4.4 months, from October 12 to February 24, 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

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Iqaluit are 63.747 deg latitude, -68.517 deg longitude, and 79 ft elevation.

The topography within 2 miles of Iqaluit contains significant variations in elevation, with a maximum elevation change of 525 feet and an average elevation above sea level of 160 feet. Within 10 miles contains significant variations in elevation (1,247 feet). Within 50 miles contains very significant variations in elevation (2,625 feet).

The area within 2 miles of Iqaluit is covered by sparse vegetation (42%), bare soil (34%), and grassland (14%), within 10 miles by water (32%) and sparse vegetation (29%), and within 50 miles by bare soil (41%) and sparse vegetation (41%).

Data Sources

This report illustrates the typical weather in Iqaluit, 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

There is only a single weather station, Iqaluit Climate, in our network suitable to be used as a proxy for the historical temperature and dew point records of Iqaluit.

At a distance of 2 kilometer from Iqaluit, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Iqaluit according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

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.