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 stands out as Rockville Centre's coldest month, with temperatures ranging between an average high of 37.8°F (3.2°C) and a low of 29.7°F (-1.3°C).Humidity
In Rockville Centre, the average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 7.8 days and typically collects 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Rockville Centre, during January, snow falls for 4.5 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, there are 15.3 snowfall days, and 5.04" (128mm) of snow is accumulated.Daylight
In Rockville Centre, the average length of the day in January is 9h and 40min.On the first day of January, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:10 pm EST.
Sunshine
In Rockville Centre, New York, the average sunshine in January is 5.2h.UV index
The months with the lowest UV index in Rockville Centre are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In January, the average maximum UV index of 2 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. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What time of the year is the coldest in Rockville Centre?
How cold is January in Rockville Centre?
What is the average humidity in January in Rockville Centre?
What is the driest month in Rockville Centre?
How many days does it rain in January in Rockville Centre?
How much does it snow in Rockville Centre in January?
What is the average length of the day in January in Rockville Centre?
When are sunrise and sunset in January in Rockville Centre?
How long on average sun shines in January in Rockville Centre?
When is the lowest UV index in Rockville Centre?
How high is the UV index in January in Rockville Centre?
Average temperature in January
Rockville Centre, NY
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in January
Rockville Centre, NY
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Rockville Centre, NY
- Average wind speed in January: 13.6mph
The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in January
Rockville Centre, NY
- Average humidity in January: 73%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Rockville Centre, NY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is July (4.17").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in January
Rockville Centre, NY
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in January
Rockville Centre, NY
- Average snowfall in January: 1.26"
The month with the highest snowfall is March (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Rockville Centre, NY
- Average snowfall days in January: 4.5 days
The months with the highest number of snowfall days are January and February (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rockville Centre, NY
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Rockville Centre, NY
- Average sunshine days in January: 18.7 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in January
Rockville Centre, NY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in January
Rockville Centre, NY
- Average cloud cover in January: 44
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Rockville Centre, NY
- 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).
Rockville Centre, New York, USA
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