This report describes the typical weather at the Oceana Naval Air Station (Virginia Beach, 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.
Virginia Beach, 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 oceans and seas (58%), forests (18%), croplands (16%), built-up areas (7%), and lakes and rivers (3%).
Over the course of a year, the temperature typically varies from 32°F to 87°F and is rarely below 21°F or above 94°F.
The warm season lasts from June 1 to September 18 with an average daily high temperature above 79°F. The hottest day of the year is July 18, with an average high of 87°F and low of 72°F.
The cold season lasts from December 6 to March 6 with an average daily high temperature below 56°F. The coldest day of the year is January 19, with an average low of 32°F and high of 49°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 9:38 hours of daylight; the longest day is June 20 with 14:40 hours of daylight.
The earliest sunrise is at 5:44am on June 12 and the latest sunset is at 8:28pm on June 28. The latest sunrise is at 7:31am on November 3 and the earliest sunset is at 4:47pm on December 4.
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 61% (partly cloudy) to 76% (partly cloudy). The sky is cloudiest on May 21 and clearest on October 26. The clearer part of the year begins around August 13. The cloudier part of the year begins around December 8.
On October 26, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 56% of the time, and overcast or mostly cloudy 44% of the time.
On May 21, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 74% of the time, and clear or mostly clear 26% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around July 20, occurring in 48% of days. Precipitation is least likely around October 11, occurring in 34% of days.
Over the entire year, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 46% of those days with precipitation. It is most likely around March 28, when it is observed during 23% of all days.
Thunderstorms are the most severe precipitation observed during 25% of those days with precipitation. They are most likely around July 19, when it is observed during 27% of all days.
Moderate rain is the most severe precipitation observed during 15% of those days with precipitation. It is most likely around November 16, when it is observed during 8% of all days.
During the warm season, which lasts from June 1 to September 18, there is a 44% 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 (49% of days with precipitation have at worst thunderstorms), light rain (36%), and moderate rain (11%).
During the cold season, which lasts from December 6 to March 6, 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 light rain (49% of days with precipitation have at worst light rain), moderate rain (17%), light snow (11%), and heavy snow (6%).
The likelihood of snow falling is highest around February 2, occurring in 12% of days. The season in which it is relatively likely for snow to fall spans from December 4 to March 27.
During peak snow season, accumulation at this location on a given day is very unlikely. The chances of there being snow on the ground are highest around February 9, occurring 6% of the time.
The snow is typically at its deepest on March 6, with a median depth of 16.7"; the depth exceeds 26.7" only one year out of ten.
The relative humidity typically ranges from 43% (comfortable) to 92% (very humid) over the course of the year, rarely dropping below 25% (dry) and reaching as high as 100% (very humid).
The air is driest around April 11, at which time the relative humidity drops below 52% (mildly humid) three days out of four; it is most humid around July 30, exceeding 88% (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 22°F (dry) to 74°F (very muggy) and is rarely below 6°F (dry) or above 78°F (oppressive).
There are two periods in the year that are most comfortable: The first is between April 12 and June 3 and the second is between September 24 and November 12. 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 16 mph (calm to moderate breeze), rarely exceeding 25 mph (strong breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around March 27, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around August 17, at which time the average daily maximum wind speed is 12 mph (moderate breeze).