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
The lowest temperatures are recorded in January, with averages reaching a high of 6.8°C (44.2°F) and a low of 2.8°C (37°F).Humidity
In January, the average relative humidity is 87%.Rainfall
In January, the rain falls for 15.4 days. Throughout January, 38mm (1.5") of precipitation is accumulated. In Rochester, during the entire year, the rain falls for 174.7 days and collects up to 446mm (17.56") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Rochester, United Kingdom, in January, during 2.5 snowfall days, 17mm (0.67") of snow is typically accumulated. Throughout the year, in Rochester, there are 9.7 snowfall days, and 69mm (2.72") of snow is accumulated.Daylight
The average length of the day in January is 8h and 28min.On the first day of January in Rochester, sunrise is at 8:02 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:44 pm GMT.
Sunshine
In Rochester, United Kingdom, the average sunshine in January is 4.2h.UV index
The months with the lowest UV index in Rochester are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What part of the year is the coldest in Rochester?
Is it cold in Rochester during January?
What is the average humidity in January in Rochester?
How much does it rain in Rochester in January?
How many days does it snow in January in Rochester?
How many hours of daylight does Rochester have in January?
What time are sunrise and sunset in January in Rochester?
How long on average sun shines in January in Rochester?
What are the months with the lowest UV index in Rochester?
How high is the UV index in January in Rochester?
Average temperature in January
Rochester, United Kingdom
- Average high temperature in January: 6.8°C
The warmest months (with the highest average high temperature) are July and August (21.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in January: 2.8°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in January
Rochester, United Kingdom
- Average pressure in January: 1014.8mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in January
Rochester, United Kingdom
- Average wind speed in January: 18.9km/h
The windiest months (with the highest average wind speed) are February and December (19.6km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in January
Rochester, 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 (75%).
Average rainfall in January
Rochester, United Kingdom
- Average rainfall in January: 38mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in January
Rochester, United Kingdom
- Average rainfall days in January: 15.4 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is September (12 days).
Average snowfall in January
Rochester, United Kingdom
- Average snowfall in January: 17mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Rochester, United Kingdom
- Average snowfall days in January: 2.5 days
The month with the highest number of snowfall days is February (3.4 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
Rochester, United Kingdom
- Average daylight in January: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 30min).
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 42min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Rochester, United Kingdom
- Average sunshine days in January: 12.2 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is November (9.7 days).
Average UV index in January
Rochester, 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
Rochester, United Kingdom
- Average cloud cover in January: 57
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in January
Rochester, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Rochester, United Kingdom
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