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
During the coldest month, January, temperatures average a high of 6.7°C (44.1°F) and a low of 1.8°C (35.2°F).Humidity
The average relative humidity in January is 88%.Rainfall
In Northolt, in January, it is raining for 10.9 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, there are 132.4 rainfall days, and 214mm (8.43") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Northolt, in January, during 2.2 snowfall days, 9mm (0.35") of snow is typically accumulated. Throughout the year, in Northolt, there are 8 snowfall days, and 32mm (1.26") of snow is accumulated.Daylight
The average length of the day in January in Northolt is 8h and 26min.On the first day of January, sunrise is at 8:07 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:47 pm GMT.
Sunshine
In Northolt, United Kingdom, the average sunshine in January is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Northolt. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What time of the year is the coldest in Northolt?
How cold is it in Northolt in January?
What is the average humidity in January in Northolt?
How many days does it rain in January in Northolt?
How much does it snow in Northolt in January?
How many hours of daylight does Northolt have in January?
When are sunrise and sunset in January in Northolt?
How long on average sun shines in January in Northolt?
When is the lowest UV index in Northolt?
What is the UV index reading in January in Northolt?
Average temperature in January
Northolt, United Kingdom
- Average high temperature in January: 6.7°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in January: 1.8°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in January
Northolt, 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
Northolt, United Kingdom
- Average wind speed in January: 16.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in January
Northolt, United Kingdom
- Average humidity in January: 88%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in January
Northolt, United Kingdom
- Average rainfall in January: 16mm
The wettest month (with the highest rainfall) is December (25mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in January
Northolt, United Kingdom
- Average rainfall days in January: 10.9 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is September (8.9 days).
Average snowfall in January
Northolt, United Kingdom
- Average snowfall in January: 9mm
The month with the highest snowfall is December (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Northolt, United Kingdom
- Average snowfall days in January: 2.2 days
The month with the highest number of snowfall days is February (2.8 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
Northolt, 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 months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Northolt, United Kingdom
- Average sunshine days in January: 15.7 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is July (14 days).
Average UV index in January
Northolt, 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
Northolt, United Kingdom
- Average cloud cover in January: 57
The months with the most cloud cover are February and November (Cloud cover 60).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in January
Northolt, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Northolt, United Kingdom
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