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
Weather in January
Temperature
Temperature records mark January as the coldest month, with highs averaging 6.8°C (44.2°F) and lows at 2°C (35.6°F).Humidity
In Acton, the average relative humidity in January is 87%.Rainfall
In Acton, during January, the rain falls for 14.6 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, there are 167.7 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Acton. In Acton, during January, snow falls for 2.4 days and regularly aggregates up to 16mm (0.63") of snow. In Acton, during the entire year, snow falls for 8.8 days and aggregates up to 55mm (2.17") of snow.Daylight
The average length of the day in January is 8h and 27min.On the first day of the month, sunrise is at 8:06 am and sunset at 4:02 pm. On the last day of January, sunrise is at 7:41 am and sunset at 4:47 pm GMT.
Sunshine
In January, the average sunshine in Acton is 4.2h.UV index
The months with the lowest UV index in Acton are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest month in Acton?
Is it cold in Acton during January?
What is the average humidity in January in Acton?
How many days does it rain in January in Acton?
How many days does it snow in January in Acton?
How many hours of daylight does Acton have in January?
When are sunrise and sunset in January in Acton?
How long on average sun shines in January in Acton?
When is the lowest UV index in Acton?
What is the UV index reading in January in Acton?
Average temperature in January
Acton, United Kingdom
- Average high temperature in January: 6.8°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in January: 2°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in January
Acton, United Kingdom
- Average pressure in January: 1014.5mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in January
Acton, United Kingdom
- Average wind speed in January: 16.6km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July and September (12.7km/h).
Average humidity in January
Acton, United Kingdom
- Average humidity in January: 87%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in January
Acton, United Kingdom
- Average rainfall in January: 30mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in January
Acton, United Kingdom
- Average rainfall days in January: 14.6 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (11.9 days).
Average snowfall in January
Acton, United Kingdom
- Average snowfall in January: 16mm
The month with the highest snowfall is February (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Acton, United Kingdom
- Average snowfall days in January: 2.4 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Acton, 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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Acton, United Kingdom
- Average sunshine days in January: 13 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in January
Acton, United Kingdom
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Acton, United Kingdom
- Average cloud cover in January: 58
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in January
Acton, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).
Acton, United Kingdom
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