This report describes the typical weather at the Charlottesville-Albemarle Airport (Charlottesville, Virginia, United States) weather station over the course of an average year. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Charlottesville, Virginia has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by forests (99%).
Over the course of a year, the temperature typically varies from 27Â°F to 87Â°F and is rarely below 15Â°F or above 94Â°F.
The warm season lasts from May 28 to September 17 with an average daily high temperature above 78Â°F. The hottest day of the year is July 14, with an average high of 87Â°F and low of 68Â°F.
The cold season lasts from November 30 to February 29 with an average daily high temperature below 52Â°F. The coldest day of the year is January 18, with an average low of 27Â°F and high of 44Â°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 9:31 hours of daylight; the longest day is June 20 with 14:49 hours of daylight.
The earliest sunrise is at 5:50am on June 14 and the latest sunset is at 8:41pm on June 27. The latest sunrise is at 7:42am on November 3 and the earliest sunset is at 4:53pm on December 9.
Daylight savings 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 38% (mostly clear) to 56% (partly cloudy). The sky is cloudiest on April 28 and clearest on November 3. The clearer part of the year begins around September 11. The cloudier part of the year begins around December 9.
On November 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 50% of the time, and overcast or mostly cloudy 36% of the time.
On April 28, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 49% of the time, and clear or mostly clear 38% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around June 12, occurring in 47% of days. Precipitation is least likely around October 10, occurring in 33% of days.
Over the entire year, the most common forms of precipitation are light rain, moderate rain, and thunderstorms.
Light rain is the most severe precipitation observed during 37% of those days with precipitation. It is most likely around April 17, when it is observed during 21% of all days.
Moderate rain is the most severe precipitation observed during 23% of those days with precipitation. It is most likely around April 10, when it is observed during 11% of all days.
Thunderstorms are the most severe precipitation observed during 22% of those days with precipitation. They are most likely around July 13, when it is observed during 24% of all days.
During the warm season, which lasts from May 28 to September 17, there is a 43% 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 (45% of days with precipitation have at worst thunderstorms), light rain (30%), and moderate rain (19%).
During the cold season, which lasts from November 30 to February 29, there is a 38% 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 (35% of days with precipitation have at worst light rain), moderate rain (22%), light snow (18%), and moderate snow (11%).
The likelihood of snow falling is highest around February 4, occurring in 17% of days. The season in which it is relatively likely for snow to fall spans from November 27 to March 29.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 36% (comfortable) to 95% (very humid) over the course of the year, rarely dropping below 18% (dry) and reaching as high as 100% (very humid).
The air is driest around April 11, at which time the relative humidity drops below 44% (comfortable) three days out of four; it is most humid around August 17, exceeding 92% (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 14Â°F (dry) to 71Â°F (very muggy) and is rarely below -3Â°F (dry) or above 76Â°F (very muggy).
There are two periods in the year that are most comfortable: The first is between April 27 and June 10 and the second is between September 8 and October 20. The air feels neither too dry nor too muggy during these periods.
Over the course of the year typical wind speeds vary from 0 mph to 14 mph (calm to moderate breeze), rarely exceeding 19 mph (fresh breeze).
The highest average wind speed of 7 mph (light breeze) occurs around March 27, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around August 16, at which time the average daily maximum wind speed is 10 mph (gentle breeze).