This report describes the typical weather at the Coeur d'Alene Air Terminal (Coeur d'Alene, Idaho, United States) weather station over the course of an average year. It is based on the historical records from 1989 to 2012. Earlier records are either unavailable or unreliable.
Coeur d'Alene, Idaho has a continental climate with dry warm summers. The area within 25 mi of this station is covered by forests (75%), grasslands (19%), and lakes and rivers (4%).
Over the course of a year, the temperature typically varies from 23°F to 84°F and is rarely below 10°F or above 93°F.
The warm season lasts from June 23 to September 10 with an average daily high temperature above 74°F. The hottest day of the year is July 27, with an average high of 84°F and low of 56°F.
The cold season lasts from November 14 to March 5 with an average daily high temperature below 42°F. The coldest day of the year is December 26, with an average low of 23°F and high of 32°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 8:24 hours of daylight; the longest day is June 20 with 16:02 hours of daylight.
The earliest sunrise is at 4:48am on June 19 and the latest sunset is at 8:50pm on June 22. The latest sunrise is at 7:37am on January 2 and the earliest sunset is at 3:55pm on December 12.
Daylight saving time (DST) is observed in this location during 2012, starting in the spring on March 11 and ending in the fall on November 4.
The median cloud cover ranges from 1% (clear) to 97% (overcast). The sky is cloudiest on December 22 and clearest on August 13. The clearer part of the year begins around April 11. The cloudier part of the year begins around October 24.
On August 13, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 10% of the time.
On December 22, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 68% of the time, and clear or mostly clear 22% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around June 16, occurring in 9% of days. Precipitation is least likely around November 26, occurring in 2% of days.
Over the entire year, the most common forms of precipitation are thunderstorms, light rain, and light snow.
Thunderstorms are the most severe precipitation observed during 50% of those days with precipitation. They are most likely around June 16, when it is observed during 7% of all days.
Light rain is the most severe precipitation observed during 27% of those days with precipitation. It is most likely around May 20, when it is observed during 2% of all days.
Light snow is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around February 1, when it is observed during 3% of all days.
During the warm season, which lasts from June 23 to September 10, there is a 5% 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 thunderstorms (81% of days with precipitation have at worst thunderstorms) and light rain (18%).
During the cold season, which lasts from November 14 to March 5, there is a 3% 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 (50% of days with precipitation have at worst light snow), light rain (30%), moderate snow (9%), and moderate rain (6%).
The likelihood of snow falling is highest around January 29, occurring in 3% of days.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 25% (dry) to 93% (very humid) over the course of the year, rarely dropping below 15% (dry) and reaching as high as 100% (very humid).
The air is driest around August 6, at which time the relative humidity drops below 28% (dry) three days out of four; it is most humid around January 22, exceeding 91% (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 18°F (dry) to 53°F (very comfortable) and is rarely below 3°F (dry) or above 59°F (comfortable).
The time of the year between June 23 and August 17 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of the year typical wind speeds vary from 0 mph to 15 mph (calm to moderate breeze), rarely exceeding 23 mph (fresh breeze).
The highest average wind speed of 8 mph (gentle breeze) occurs around January 2, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 7 mph (light breeze) occurs around July 17, at which time the average daily maximum wind speed is 13 mph (moderate breeze).