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's weather records an average high-temperature of a frosty 44.2°F (6.8°C), showing little deviation from December. In January, the nighttime temperature in Porter lowers to an average of 34.3°F (1.3°C).Humidity
In January, the average relative humidity is 90%.Rainfall
January is the month with the most rainfall in Porter. Rain falls for 19.2 days and accumulates 7.32" (186mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Porter, in January, during 1.9 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Porter, Washington, during the entire year, snow falls for 9.1 days and aggregates up to 5.75" (146mm) of snow.Daylight
In January, the average length of the day in Porter, Washington, is 9h and 2min.On the first day of January, sunrise is at 7:58 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:14 pm PST.
Sunshine
In January, the average sunshine is 3.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Porter in January?
What is the average humidity in January in Porter?
What is the rainiest month in Porter?
How much does it rain in Porter in January?
How much does it snow in Porter in January?
How many hours of daylight does Porter have in January?
What time are sunrise and sunset in January in Porter?
How many hours of sunshine does Porter have in January?
What are the months with the lowest UV index in Porter?
What is the UV index intensity in January in Porter?
Average temperature in January
Porter, WA
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in January: 34.3°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in January
Porter, WA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in January
Porter, WA
- Average wind speed in January: 4.4mph
The windiest month (with the highest average wind speed) is June (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.5mph).
Average humidity in January
Porter, WA
- Average humidity in January: 90%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Porter, WA
- Average rainfall in January: 7.32"
The wettest month (with the highest rainfall) is January (7.32").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in January
Porter, WA
- Average rainfall days in January: 19.2 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in January
Porter, WA
- Average snowfall in January: 1.57"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Porter, WA
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Porter, WA
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 3h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in January
Porter, WA
- Average sunshine days in January: 9.4 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in January
Porter, WA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Porter, WA
- Average cloud cover in January: 67
The months with the most cloud cover are January and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in January
Porter, WA
- Average visibility in January: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Porter, Washington, USA
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