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 its high-temperature average of 35.1°F (1.7°C) and a low-temperature average of 23.7°F (-4.6°C), is the coldest month.Humidity
In Rockville, Rhode Island, the average relative humidity in January is 76%.Rainfall
In Rockville, in January, during 9.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Rockville, Rhode Island, during the entire year, the rain falls for 162.4 days and collects up to 33.78" (858mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Rockville. In Rockville, in January, during 6.9 snowfall days, 2.48" (63mm) of snow is typically accumulated. In Rockville, during the entire year, snow falls for 27.9 days and aggregates up to 12.2" (310mm) of snow.Daylight
In Rockville, the average length of the day in January is 9h and 35min.On the first day of January, sunrise is at 7:13 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:01 pm EST.
Sunshine
In January, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest in Rockville?
How cold is it in Rockville in January?
What is the average humidity in January in Rockville?
How much does it rain in Rockville in January?
How much does it snow in Rockville in January?
What is the average length of the day in January in Rockville?
When are sunrise and sunset in January in Rockville?
How long on average sun shines in January in Rockville?
What are the months with the lowest UV index in Rockville?
How high is the UV index in January in Rockville?
Average temperature in January
Rockville, RI
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 23.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in January
Rockville, RI
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Rockville, RI
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Rockville, RI
- Average humidity in January: 76%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Rockville, RI
- Average rainfall in January: 2.68"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in January
Rockville, RI
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Rockville, RI
- Average snowfall in January: 2.48"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Rockville, RI
- Average snowfall days in January: 6.9 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Rockville, RI
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Rockville, RI
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in January
Rockville, RI
- 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, November and December (UV index 2).
Average cloud cover in January
Rockville, RI
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Rockville, RI
- 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, Rhode Island, USA
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