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 commencement of January notes an average high-temperature of a still cold 33.3°F (0.7°C), exhibiting little difference from the previous month. Throughout January, Rockford experiences a low-temperature average of 22.6°F (-5.2°C).Humidity
With an average relative humidity of 91%, January is the most humid month.Rainfall
January is the month with the most rainfall. Rain falls for 9.7 days and accumulates 2.28" (58mm) of precipitation.Snowfall
Months with snowfall in Rockford are January through May, September through December. January is the month with the most snowfall. Snow falls for 13.3 days and accumulates 10.51" (267mm) of snow.Daylight
In January, the average length of the day is 8h and 58min.On the first day of January, sunrise is at 7:35 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:47 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.8h of sunshine.UV index
In Rockford, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during January leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
How cold is it in Rockford in January?
What is the most humid month in Rockford?
What is the average humidity in January in Rockford?
What is the rainiest month in Rockford?
How many days does it rain in January in Rockford?
When does it snow the most in Rockford?
How many days does it snow in January in Rockford?
How many hours of daylight does Rockford have in January?
When are sunrise and sunset in January in Rockford?
What is the month with the least sunshine in Rockford?
How many hours of sunshine does Rockford have in January?
What is the UV index intensity in January in Rockford?
Average temperature in January
Rockford, WA
- Average high temperature in January: 33.3°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in January: 22.6°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in January
Rockford, WA
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in January
Rockford, WA
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in January
Rockford, WA
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).
Average rainfall in January
Rockford, WA
- Average rainfall in January: 2.28"
The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in January
Rockford, WA
- Average rainfall days in January: 9.7 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).
Average snowfall in January
Rockford, WA
- Average snowfall in January: 10.51"
The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Rockford, WA
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Rockford, WA
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in January
Rockford, WA
- Average sunshine days in January: 13.2 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in January
Rockford, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Rockford, WA
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in January
Rockford, WA
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Rockford, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
