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 ushers in an average high-temperature of a still cold 42.1°F (5.6°C), aligning closely with the preceding month. January nights are marked by an average temperature drop to a subzero cold 31.3°F (-0.4°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 87%.Rainfall
The months with the most rainfall are January and December, with an average 6.1" (155mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In January, it is snowing for 3.8 days. Throughout January, 3.82" (97mm) of snow is accumulated. In South Prairie, during the entire year, snow falls for 22.3 days and aggregates up to 15.47" (393mm) of snow.Daylight
In South Prairie, the average length of the day in January is 9h and 1min.On the first day of January, sunrise is at 7:54 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:08 pm PST.
Sunshine
In South Prairie, the average sunshine in January is 4.1h.UV index
In South Prairie, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January in South Prairie?
What is the rainiest month?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does South Prairie have in January?
What is the UV index intensity in January?
Average temperature in January
South Prairie, WA
- Average high temperature in January: 42.1°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in January: 31.3°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure in January
South Prairie, WA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in January
South Prairie, WA
- Average wind speed in January: 5.3mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in January
South Prairie, WA
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in January
South Prairie, WA
- Average rainfall in January: 6.1"
The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in January
South Prairie, WA
- Average rainfall days in January: 18.5 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in January
South Prairie, WA
- Average snowfall in January: 3.82"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
South Prairie, WA
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
South Prairie, 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 36min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in January
South Prairie, WA
- Average sunshine days in January: 10 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in January
South Prairie, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in January
South Prairie, WA
- Average cloud cover in January: 58
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
South Prairie, WA
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
South Prairie, Washington, USA
Weather forecast for your location
2. Allow the app to use your location