This report describes the typical weather at the Pangborn Memorial Airport (Wenatchee, Washington, United States) weather station over the course of an average year. It is based on the historical records from 2000 to 2012. Earlier records are either unavailable or unreliable.
Wenatchee, Washington has a cold semi-arid steppe climate. The area within 25 mi of this station is covered by shrublands (35%), grasslands (31%), forests (28%), and croplands (5%).
Over the course of a year, the temperature typically varies from 24°F to 89°F and is rarely below 15°F or above 97°F.
The warm season lasts from June 17 to September 11 with an average daily high temperature above 78°F. The hottest day of the year is July 30, with an average high of 89°F and low of 64°F.
The cold season lasts from November 16 to February 22 with an average daily high temperature below 43°F. The coldest day of the year is December 25, with an average low of 24°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 8:26 hours of daylight; the longest day is June 20 with 15:56 hours of daylight.
The earliest sunrise is at 5:03am on June 13 and the latest sunset is at 9:02pm on June 27. The latest sunrise is at 7:49am on November 3 and the earliest sunset is at 4:09pm 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 0% (clear) to 90% (mostly cloudy). The sky is cloudiest on December 30 and clearest on July 14. The clearer part of the year begins around February 13. The cloudier part of the year begins around November 15.
On July 14, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 94% of the time, and overcast or mostly cloudy 6% of the time.
On December 30, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 67% of the time, and clear or mostly clear 32% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around December 19, occurring in 49% of days. Precipitation is least likely around August 13, occurring in 10% of days.
Over the entire year, the most common forms of precipitation are light rain, light snow, and moderate rain.
Light rain is the most severe precipitation observed during 45% of those days with precipitation. It is most likely around October 26, when it is observed during 20% of all days.
Light snow is the most severe precipitation observed during 28% of those days with precipitation. It is most likely around December 22, when it is observed during 30% of all days.
Moderate rain is the most severe precipitation observed during 10% of those days with precipitation. It is most likely around May 10, when it is observed during 5% of all days.
During the warm season, which lasts from June 17 to September 11, there is a 13% 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 rain (51% of days with precipitation have at worst light rain), thunderstorms (37%), and moderate rain (11%).
During the cold season, which lasts from November 16 to February 22, there is a 42% 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 (53% of days with precipitation have at worst light snow), light rain (25%), moderate snow (14%), and moderate rain (7%).
The likelihood of snow falling is highest around December 22, occurring in 39% of days. The season in which it is relatively likely for snow to fall spans from November 11 to March 4.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 21% (dry) to 95% (very humid) over the course of the year, rarely dropping below 13% (very dry) and reaching as high as 100% (very humid).
The air is driest around July 25, at which time the relative humidity drops below 25% (dry) three days out of four; it is most humid around January 2, exceeding 93% (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 21°F (dry) to 51°F (very comfortable) and is rarely below 9°F (dry) or above 57°F (comfortable).
The time of the year between July 14 and August 19 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 19 mph (calm to fresh breeze), rarely exceeding 26 mph (strong breeze).
The highest average wind speed of 11 mph (gentle breeze) occurs around June 16, at which time the average daily maximum wind speed is 19 mph (fresh breeze).
The lowest average wind speed of 3 mph (light air) occurs around December 26, at which time the average daily maximum wind speed is 7 mph (light breeze).