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
January, with average temperatures reaching a high of 39.7°F (4.3°C) and a low of 29.7°F (-1.3°C), is the coldest month.Humidity
In January, the average relative humidity is 74%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.3 days and typically collects 1.61" (41mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Cologne, during January, snow falls for 3.8 days and regularly aggregates up to 1.61" (41mm) of snow. In Cologne, New Jersey, during the entire year, snow falls for 12.6 days and aggregates up to 5.79" (147mm) of snow.Daylight
The average length of the day in January is 9h and 46min.On the first day of January in Cologne, sunrise is at 7:18 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:16 pm EST.
Sunshine
In Cologne, the average sunshine in January is 5.3h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 2 suggests this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What part of the year is the coldest in Cologne?
Is it cold in Cologne during January?
What is the average humidity in January in Cologne?
What is the driest month in Cologne?
How much does it rain in Cologne in January?
How much does it snow in Cologne in January?
What is the average length of the day in January in Cologne?
When is the sunrise / sunset in January in Cologne?
How long on average sun shines in January in Cologne?
What are the months with the lowest UV index in Cologne?
How high is the UV index in January in Cologne?
Average temperature in January
Cologne, NJ
- Average high temperature in January: 39.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in January
Cologne, NJ
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Cologne, NJ
- Average wind speed in January: 10.6mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in January
Cologne, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Cologne, NJ
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is August (2.91").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in January
Cologne, NJ
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (16.1 days).
The months with the least rainy days are January and November (8.3 days).
Average snowfall in January
Cologne, NJ
- Average snowfall in January: 1.61"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Cologne, NJ
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is January (3.8 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
Cologne, NJ
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Cologne, NJ
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Cologne, NJ
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in January
Cologne, NJ
- Average cloud cover in January: 42
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Cologne, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Cologne, New Jersey, USA
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