This report describes the typical weather at the Louisa County Airport (Louisa, Virginia, United States) weather station over the course of an average February. It is based on the historical records from 1999 to 2012. Earlier records are either unavailable or unreliable.
Louisa, 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 (98%).
The month of February is characterized by rising daily high temperatures, with daily highs increasing from 48Â°F to 56Â°F over the course of the month, exceeding 70Â°F or dropping below 36Â°F only one day in ten.
Over the course of February, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 1:02 hours, implying an average day-over-day increase of 2.2 minutes.
The shortest day of the month is February 1 with 10:18 hours of daylight; the longest day is February 29 with 11:21 hours of daylight.
The earliest sunrise is at 6:44am on February 29; the latest sunset is at 6:05pm on February 29; the latest sunrise is at 7:17am on February 1; the earliest sunset is at 5:35pm on February 1.
Daylight saving time is observed in 2012 but it neither starts nor ends in February, so the entire month is in standard time.
The median cloud cover is 21% (mostly clear) and does not vary substantially over the course of the month.
On February 15, a representative day, the sky is clear or mostly clear 53% of the time, partly cloudy 7% of the time, and mostly cloudy or overcast 34% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around February 29, occurring in 20% of days. Precipitation is least likely around February 1, occurring in 15% of days.
Throughout February, the most common forms of precipitation are moderate rain, light snow, moderate snow, and light rain.
Moderate rain is the most severe precipitation observed during 41% of those days with precipitation. It is most likely around February 28, when it is observed during 8% of all days.
Light snow is the most severe precipitation observed during 17% of those days with precipitation. It is most likely around February 21, when it is observed during 3% of all days.
Moderate snow is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around February 4, when it is observed during 3% of all days.
Light rain is the most severe precipitation observed during 12% of those days with precipitation. It is most likely around February 29, when it is observed during 3% of all days.
The likelihood of snow falling is highest around February 4, occurring in 7% of days.
Either snow rarely accumulates at this location in February or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 37% (comfortable) to 87% (very humid) over the course of a typical February, rarely dropping below 19% (dry) and reaching as high as 100% (very humid).
The air is driest around February 29, at which time the relative humidity drops below 45% (comfortable) three days out of four; it is most humid around February 1, rising above 78% (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 typical February, the dew point typically varies from 19Â°F (dry) to 37Â°F (dry) and is rarely below 4Â°F (dry) or above 53Â°F (very comfortable).
Over the course of February typical wind speeds vary from 0 mph to 12 mph (calm to gentle breeze), rarely exceeding 19 mph (fresh breeze).
The highest average wind speed of 5 mph (light breeze) occurs around February 21, at which time the average daily maximum wind speed is 12 mph (gentle breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around February 1, at which time the average daily maximum wind speed is 10 mph (gentle breeze).