This report describes the typical weather at the Charlottesville-Albemarle Airport (Charlottesville, Virginia, United States) weather station over the course of an average February 28. 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%).
The temperature typically varies from 35Â°F to 51Â°F and is rarely below 24Â°F or above 66Â°F.
The coolest hours of the day are from 3am to 9am with the coldest at 7am, at which time the temperature is below 42Â°F three days out of four.
The warmest hours of the day are from noon to 6pm with the hottest at 3pm, at which time the temperature is above 42Â°F three days out of four.
The day has gained half its heat by 11am and lost it again by 9pm.
On February 28 the Sun rises at 6:47am and sets at 6:05pm.
Solar noon is at 12:26pm.
For reference, on the longest day of the year the Sun rises at 5:51am and sets at 8:39pm, while on the shortest day of the year it rises at 7:26am and sets at 4:57pm.
Astronomical twilight begins and ends 87 minutes before sunrise and after sunset at 5:20am and 7:33pm, respectively.
Nautical twilight begins and ends 57 minutes before sunrise and after sunset at 5:50am and 7:02pm, respectively.
Civil twilight begins and ends 26 minutes before sunrise and after sunset at 6:20am and 6:32pm, respectively.
Solar twilight begins and ends 35 minutes after sunrise and before sunset at 7:23am and 5:30pm, respectively.
The median cloud cover ranges from 24% (mostly clear) to 71% (partly cloudy).
At 1am, the clearest time of the day, the sky is clear, mostly clear, or partly cloudy 41% of the time, and overcast or mostly cloudy 26% of the time.
At 1pm, the cloudiest time of the day, the sky is overcast, mostly cloudy, or partly cloudy 58% of the time, and clear or mostly clear 41% of the time.
The sky is typically clearing in earnest by 8pm.
The clouds have typically started forming in earnest by 7am.
There is a 39% chance that precipitation will be observed at some point during the day.
The average measured liquid-equivalent quantity of precipitation is 0.024". Among only those days for which there is at least some measured precipitation, the average is 0.260" and the total rarely exceeds 0.421".
When precipitation does occur it is most often in the form of slight rain (38% of days with precipitation have at worst slight rain), moderate rain (20%), slight snow (17%), moderate snow (10%), and heavy snow (6%).
Precipitation is most likely around 11am and least likely around 2am.
Either snow is exceptionally unlikely to fall at this location on February 28 or this station does not reliably report precipitation types.
The relative humidity typically ranges from 46% (comfortable) to 68% (mildly humid), rarely dropping below 22% (dry), or exceeding 95% (very humid).
The air is driest at 3pm, at which time the relative humidity is less than 58% (mildly humid) three days out of four; it is most humid at 6am, exceeding 53% (mildly humid) three days out of four.
The dew point ranges from 25Â°F to 27Â°F with an average of 26Â°F.
For reference, comfortable indoor conditions should have a relative humidity between 30% and 50% with a dew point of less than 65Â°F.
Sustained wind speeds typically vary from 5 mph to 9 mph (light breeze to gentle breeze) over the course of the day.
The peak sustained wind speed typically occurs around 4pm and is rarely outside the range 4 mph to 15 mph (light breeze to moderate breeze).
The wind is most calm around 5am, rarely exceeding 10 mph (gentle breeze).
The wind is most often out of the south (15% of the time). The wind is least often out of the south east (2% of the time) and east (3% of the time).