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 of the year, registering average temperatures as high as 6.8°C (44.2°F) and as low as 1.9°C (35.4°F).Humidity
The average relative humidity in January in Heston is 87%.Rainfall
January, March through May are months with the least rain when the rain falls for 6.8 days and typically aggregates up to 9mm (0.35") of rain.Snowfall
Months with snowfall are January through March and December. The months with the most snowfall are January and February, with an average 6mm (0.24") of accumulated snow.Daylight
The average length of the day in January in Heston is 8h and 27min.On the first day of January, sunrise is at 8:06 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:48 pm GMT.
Sunshine
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. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Heston?
How cold does it get in Heston in January?
What is the average humidity in January in Heston?
What is the driest month in Heston?
How many days does it rain in January in Heston?
What is the snowiest month in Heston?
How much does it snow in Heston in January?
How many hours of daylight does Heston have in January?
What time are sunrise and sunset in January in Heston?
How long on average sun shines in January in Heston?
What are the months with the lowest UV index in Heston?
What is the UV index intensity in January in Heston?
Average temperature in January
Heston, United Kingdom
- Average high temperature in January: 6.8°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in January: 1.9°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 (1.9°C).
Average pressure in January
Heston, 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
Heston, 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
Heston, United Kingdom
- Average humidity in January: 87%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in January
Heston, United Kingdom
- Average rainfall in January: 9mm
The wettest month (with the highest rainfall) is June (21mm).
The driest months (with the least rainfall) are January, March, April and May (9mm).
Average rainfall days in January
Heston, United Kingdom
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is June (12.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in January
Heston, United Kingdom
- Average snowfall in January: 6mm
The months with the highest snowfall are January and February (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Heston, United Kingdom
- Average snowfall days in January: 1.5 days
The month with the highest number of snowfall days is February (2 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
Heston, United Kingdom
- Average daylight in January: 8h and 3min
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: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Heston, United Kingdom
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is October (20.2 days).
The months with the least sunshine days are June and July (14.2 days).
Average UV index in January
Heston, 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
Heston, United Kingdom
- Average cloud cover in January: 57
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
Heston, 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).
