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Average Weather at Coeur D'Alene Air Terminal Idaho, United States

At Coeur D'Alene Air Terminal, the summers are short, warm, dry, and mostly clear and the winters are freezing and mostly cloudy. Over the course of the year, the temperature typically varies from 23°F to 86°F and is rarely below 8°F or above 95°F.

Based on the tourism score, the best time of year to visit Coeur D'Alene Air Terminal for warm-weather activities is from early July to mid August.

Climate Summary

very coldcoldcoolwarmhotwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow79%79%25%25%clearovercastprecipitation: 3.7 inprecipitation: 3.7 in0.6 in0.6 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 6.8tourism score: 6.80.00.0
Click on each chart for more information.

Temperature

The hot season lasts for 2.7 months, from June 20 to September 11, with an average daily high temperature above 75°F. The hottest day of the year is August 2, with an average high of 86°F and low of 55°F.

The cold season lasts for 3.5 months, from November 12 to February 26, with an average daily high temperature below 43°F. The coldest day of the year is December 31, with an average low of 23°F and high of 33°F.

Average High and Low Temperature

Average High and Low Temperature at Coeur D'Alene Air TerminalhotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FDec 3133°FDec 3133°FAug 286°FAug 286°F23°F23°F55°F55°FJun 2075°FJun 2075°FSep 1175°FSep 1175°FFeb 2643°FFeb 2643°F50°F50°F48°F48°F32°F32°F28°F28°FNowNow
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 at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoldcoolwarmcomfortable
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
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Крива Паланка, Macedonia (5,745 miles away) is the far-away foreign place with temperatures most similar to Coeur D'Alene Air Terminal (view comparison).

Clouds

At Coeur D'Alene Air Terminal, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Coeur D'Alene Air Terminal begins around June 7 and lasts for 4.1 months, ending around October 9. On July 31, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.

The cloudier part of the year begins around October 9 and lasts for 7.9 months, ending around June 7. On January 8, the cloudiest day of the year, the sky is overcast or mostly cloudy 75% of the time, and clear, mostly clear, or partly cloudy 25% of the time.

Cloud Cover Categories

Cloud Cover Categories at Coeur D'Alene Air TerminalclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 3179%Jul 3179%Jan 825%Jan 825%Jun 752%Jun 752%Oct 952%Oct 952%NowNowclearovercastmostly cloudymostly clearpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Coeur D'Alene Air Terminal varies significantly throughout the year.

The wetter season lasts 7.8 months, from October 18 to June 11, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 43% on November 18.

The drier season lasts 4.2 months, from June 11 to October 18. The smallest chance of a wet day is 9% on August 3.

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 throughout the year is rain alone, with a peak probability of 36% on November 9.

Daily Chance of Precipitation

Daily Chance of Precipitation at Coeur D'Alene Air TerminalwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Nov 1843%Nov 1843%Aug 39%Aug 39%Oct 1826%Oct 1826%Jun 1126%Jun 1126%NowNowrainsnowmixed
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. Coeur D'Alene Air Terminal experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Coeur D'Alene Air Terminal. The most rain falls during the 31 days centered around November 19, with an average total accumulation of 3.3 inches.

The least rain falls around August 5, with an average total accumulation of 0.6 inches.

Average Monthly Rainfall

Average Monthly Rainfall at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec0 in1 in2 in3 in4 in5 in6 inNov 193.3 inNov 193.3 inAug 50.6 inAug 50.6 inMar 132.1 inMar 132.1 inMay 292.0 inMay 292.0 inNowNow
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. Coeur D'Alene Air Terminal experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.9 months, from October 29 to March 25, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 30, with an average total liquid-equivalent accumulation of 1.0 inches.

The snowless period of the year lasts for 7.1 months, from March 25 to October 29. The least snow falls around July 23, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall at Coeur D'Alene Air TerminalsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 in3.0 in3.5 inDec 301.0 inDec 301.0 inJul 230.0 inJul 230.0 inOct 290.1 inOct 290.1 inMar 250.1 inMar 250.1 inNowNow
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 at Coeur D'Alene Air Terminal varies extremely over the course of the year. In 2020, the shortest day is December 21, with 8 hours, 24 minutes of daylight; the longest day is June 20, with 16 hours, 1 minute of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 9 minMar 1912 hr, 9 minMar 1916 hr, 1 minJun 2016 hr, 1 minJun 2012 hr, 12 minSep 2212 hr, 12 minSep 228 hr, 24 minDec 218 hr, 24 minDec 21nightnightday
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 4:48 AM on June 16, and the latest sunrise is 2 hours, 48 minutes later at 7:36 AM on January 1. The earliest sunset is at 3:54 PM on December 10, and the latest sunset is 4 hours, 55 minutes later at 8:49 PM on June 25.

Daylight saving time (DST) is observed at Coeur D'Alene Air Terminal during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 164:48 AMJun 164:48 AM8:49 PMJun 258:49 PMJun 25Dec 103:54 PMDec 103:54 PM7:36 AMJan 17:36 AMJan 1Mar 8DSTMar 8DSTDSTNov 1DSTNov 1daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2020. 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 at Coeur D'Alene Air Terminal, 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 at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 60%Jan 60%Jul 160%Jul 160%NowNowdrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 at Coeur D'Alene Air Terminal does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 4.9 miles per hour throughout.

Average Wind Speed

Average Wind Speed at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mphMar 305.2 mphMar 305.2 mphJul 294.6 mphJul 294.6 mphNowNow
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 at Coeur D'Alene Air Terminal varies throughout the year.

The wind is most often from the west for 2.3 months, from July 13 to September 23, with a peak percentage of 40% on August 28. The wind is most often from the south for 9.7 months, from September 23 to July 13, with a peak percentage of 46% on January 1.

Wind Direction

Wind Direction at Coeur D'Alene Air TerminalSWSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is at Coeur D'Alene Air Terminal 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 Coeur D'Alene Air Terminal for general outdoor tourist activities is from early July to mid August, with a peak score in the last week of July.

Tourism Score

Tourism Score at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec02468106.86.80.00.0NowNowprecipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Coeur D'Alene Air Terminal for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.

Beach/Pool Score

Beach/Pool Score at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec02468103.43.40.00.0NowNow precipitationprecipitationcloudscloudstemperaturetemperature
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

Growing Season

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 Coeur D'Alene Air Terminal typically lasts for 5.1 months (155 days), from around May 3 to around October 5, rarely starting before April 13 or after May 23, and rarely ending before September 15 or after October 25.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season at Coeur D'Alene Air Terminalgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 350%May 350%Oct 550%Oct 550%May 2390%May 2390%Sep 1590%Sep 1590%Apr 1310%Apr 1310%Oct 2510%Oct 2510%0%Feb 130%Feb 13Jul 17100%Jul 17100%NowNowfreezingvery coldcoldcoolwarmcomfortablehotfrigid
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
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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.

Based on growing degree days alone, the first spring blooms at Coeur D'Alene Air Terminal should appear around April 30, only rarely appearing before April 19 or after May 15.

Growing Degree Days

Growing Degree Days at Coeur D'Alene Air TerminalJanFebMarAprMayJunJulAugSepOctNovDec0°F500°F1,000°F1,500°F2,000°FApr 3090°FApr 3090°FJul 17900°FJul 17900°FSep 81,800°FSep 81,800°FDec 312,079°FDec 312,079°FNowNow
The average growing degree days accumulated over the course of the year, 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 3.1 months, from May 18 to August 20, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest day of the year is July 14, with an average of 7.5 kWh.

The darker period of the year lasts for 3.9 months, from October 24 to February 19, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 25, with an average of 1.0 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Coeur D'Alene Air TerminalbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 147.5 kWhJul 147.5 kWhDec 251.0 kWhDec 251.0 kWhMay 186.2 kWhMay 186.2 kWhAug 206.2 kWhAug 206.2 kWhOct 242.3 kWhOct 242.3 kWhFeb 192.3 kWhFeb 192.3 kWhNowNow
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 Coeur D'Alene Air Terminal are 47.774 deg latitude, -116.819 deg longitude, and 2,287 ft elevation.

The topography within 2 miles of Coeur D'Alene Air Terminal is essentially flat, with a maximum elevation change of 66 feet and an average elevation above sea level of 2,295 feet. Within 10 miles is essentially flat (2,887 feet). Within 50 miles contains large variations in elevation (5,561 feet).

The area within 2 miles of Coeur D'Alene Air Terminal is covered by grassland (43%), cropland (24%), artificial surfaces (19%), and shrubs (10%), within 10 miles by trees (38%) and shrubs (32%), and within 50 miles by trees (46%) and shrubs (28%).

Data Sources

This report illustrates the typical weather at Coeur D'Alene Air Terminal, 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

Coeur D'Alene Air Terminal 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.

The stations on which we may fall back include but are not limited to Felts Field; Sandpoint Airport; Deer Park Airport; Spokane International Airport; Fairchild Air Force Base; Pullman–Moscow Regional Airport; Mullan Pass, Mullan Pass Vor; and Lewiston–Nez Perce County Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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.

Disclaimer

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.