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
Rotterdam's January weather reaches an average high of 28.6°F (-1.9°C) and an average low of 16.9°F (-8.4°C), making it the coldest month.Humidity
In January, the average relative humidity is 81%.Rainfall
January is the month with the least rainfall. Rain falls for 6.2 days and accumulates 1.57" (40mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Rotterdam, in January, during 8.5 snowfall days, 5.43" (138mm) of snow is typically accumulated. In Rotterdam, during the entire year, snow falls for 36.5 days and aggregates up to 22.56" (573mm) of snow.Daylight
In Rotterdam, the average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 7:26 am and sunset at 4:32 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:06 pm EST.
Sunshine
In Rotterdam, the average sunshine in January is 4.3h.UV index
The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January in Rotterdam?
How many hours of daylight does Rotterdam have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What is the UV index intensity in January in Rotterdam?
Average temperature in January
Rotterdam, NY
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 16.9°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in January
Rotterdam, NY
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Rotterdam, NY
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Rotterdam, NY
- Average humidity in January: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Rotterdam, NY
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in January
Rotterdam, NY
- Average rainfall days in January: 6.2 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in January
Rotterdam, NY
- Average snowfall in January: 5.43"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rotterdam, NY
- Average snowfall days in January: 8.5 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rotterdam, NY
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in January
Rotterdam, NY
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in January
Rotterdam, NY
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Rotterdam, NY
- Average cloud cover in January: 55
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Rotterdam, NY
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May and September (5mi).
Rotterdam, New York, USA
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