Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
January is the coldest month, with the temperature often reaching an average high of 6.2°C (43.2°F) and an average low of 2.2°C (36°F).Humidity
In January, the average relative humidity is 89%.Rainfall
In January, in Tretower, United Kingdom, the rain falls for 15.8 days. Throughout January, 49mm (1.93") of precipitation is accumulated. Throughout the year, there are 197.4 rainfall days, and 601mm (23.66") of precipitation is accumulated.Snowfall
Months with snowfall in Tretower are January through May, November and December. The month with the most snowfall is January, when snow falls for 3.9 days and typically aggregates up to 37mm (1.46") of snow.Daylight
In January, the average length of the day is 8h and 23min.On the first day of January, sunrise is at 8:20 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:57 pm GMT.
Sunshine
In January, the average sunshine is 3.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Tretower?
Is January cold in Tretower?
What is the average humidity in January in Tretower?
How many days does it rain in January in Tretower?
When does it snow the most in Tretower?
How much does it snow in Tretower in January?
How many hours of daylight does Tretower have in January?
What time are sunrise and sunset in January in Tretower?
How long on average sun shines in January in Tretower?
What is the month with the lowest UV index in Tretower?
How high is the UV index in January in Tretower?
Average temperature in January
Tretower, United Kingdom
- Average high temperature in January: 6.2°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in January: 2.2°C
The month with the highest average low temperature is August (11.6°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in January
Tretower, United Kingdom
- Average pressure in January: 1013.8mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in January
Tretower, United Kingdom
- Average wind speed in January: 19.2km/h
The windiest month (with the highest average wind speed) is February (20.2km/h).
The calmest month (with the lowest average wind speed) is June (13.5km/h).
Average humidity in January
Tretower, United Kingdom
- Average humidity in January: 89%
The months with the highest relative humidity are November and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in January
Tretower, United Kingdom
- Average rainfall in January: 49mm
The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in January
Tretower, United Kingdom
- Average rainfall days in January: 15.8 days
The months with the highest number of rainy days are July and November (19.1 days).
The month with the least rainy days is February (12.8 days).
Average snowfall in January
Tretower, United Kingdom
- Average snowfall in January: 37mm
The month with the highest snowfall is January (37mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in January
Tretower, United Kingdom
- Average snowfall days in January: 3.9 days
The months with the highest number of snowfall days are January and February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Tretower, United Kingdom
- Average daylight in January: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 36min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in January
Tretower, United Kingdom
- Average sunshine days in January: 10.2 days
The months with the most sunshine days are March and April (12.3 days).
The month with the least sunshine days is November (7.3 days).
Average UV index in January
Tretower, United Kingdom
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Tretower, United Kingdom
- Average cloud cover in January: 62
The month with the most cloud cover is November (Cloud cover 65).
The months with the least cloud cover are April and May (Cloud cover 51).
Average visibility in January
Tretower, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June and December (9km).
The months with the lowest visibility are July, August, September, October and November (8km).
