This report describes the typical weather at the Valley/Anglesey Airport (Anglesey, United Kingdom) weather station over the course of an average January 14. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Anglesey has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (69%), croplands (26%), and grasslands (4%).
The temperature typically varies from 42Â°F to 45Â°F and is rarely below 34Â°F or above 50Â°F.
The coolest hours of the day are from 9pm to 10am with the coldest at 7am, at which time the temperature is below 47Â°F three days out of four.
The warmest hours of the day are from 11am to 4pm with the hottest at 2pm, at which time the temperature is above 43Â°F three days out of four.
The day has gained half its heat by 11am and lost it again by 5pm.
On January 14 the Sun rises at 8:26am and sets at 4:27pm.
Solar noon is at 12:27pm.
For reference, on the longest day of the year the Sun rises at 4:50am and sets at 9:49pm, while on the shortest day of the year it rises at 8:31am and sets at 4:01pm.
Astronomical twilight begins and ends 126 minutes before sunrise and after sunset at 6:19am and 6:34pm, respectively.
Nautical twilight begins and ends 85 minutes before sunrise and after sunset at 7:02am and 5:53pm, respectively.
Civil twilight begins and ends 40 minutes before sunrise and after sunset at 7:45am and 5:08pm, respectively.
Solar twilight begins and ends 61 minutes after sunrise and before sunset at 9:28am and 3:25pm, respectively.
The median cloud cover is 89% (mostly cloudy) and does not vary substantially over the course of the day.
On average, the sky is clear or mostly clear 20% of the time, partly cloudy 14% of the time, and mostly cloudy or overcast 59% of the time.
There is a 72% chance that precipitation will be observed at some point during the day.
When precipitation does occur it is most often in the form of moderate rain (73% of days with precipitation have at worst moderate rain), moderate snow (7%), and slight rain (6%).
Precipitation is most likely around 10am and least likely around 11pm.
Either snow is exceptionally unlikely to fall at this location on January 14 or this station does not reliably report precipitation types.
The relative humidity typically ranges from 80% (humid) to 85% (humid), rarely dropping below 65% (mildly humid), or exceeding 97% (very humid).
The air is driest at 2pm, at which time the relative humidity is less than 89% (very humid) three days out of four; it is most humid at 5am, exceeding 79% (humid) three days out of four.
The dew point ranges from 38Â°F to 39Â°F with an average of 38Â°F.
For reference, comfortable indoor conditions should have a relative humidity between 30% and 50% with a dew point of less than 65Â°F.
The wind speed is 18 mph (fresh breeze) on average and is rarely outside the range 5 mph to 31 mph (light breeze to high wind). The wind speed does not vary substantially during the course of the day.
The wind is most often out of the south (22% of the time), south west (21% of the time), and west (17% of the time).