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
With the advent of January, Piedmont's high-temperatures adjust to a still cold 41.4°F (5.2°C), closely aligning with the preceding month. The nighttime temperature in January experiences a minor dip, averaging a still wintry 32.9°F (0.5°C).Humidity
January and December, with an average relative humidity of 89%, are the most humid months.Rainfall
The month with the most rainfall is January, when the rain falls for 14.8 days and typically aggregates up to 3.35" (85mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 2.8 days. Throughout January, 3.07" (78mm) of snow is accumulated. In Piedmont, during the entire year, snow falls for 20 days and aggregates up to 11.06" (281mm) of snow.Daylight
In January, the average length of the day is 8h and 54min.On the first day of January, sunrise is at 8:05 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:12 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index in Piedmont are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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?
What is the wettest month?
How many days does it rain in January in Piedmont?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Piedmont?
What is the month with the least sunshine?
How many hours of sunshine does Piedmont have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Piedmont, WA
- Average high temperature in January: 41.4°F
The warmest month (with the highest average high temperature) is August (69.1°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in January: 32.9°F
The month with the highest average low temperature is August (48.6°F).
The coldest months (with the lowest average low temperature) are February and December (31.5°F).
Average pressure in January
Piedmont, WA
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).
Average wind speed in January
Piedmont, WA
- Average wind speed in January: 5.2mph
The windiest months (with the highest average wind speed) are January and November (5.2mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in January
Piedmont, WA
- Average humidity in January: 89%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in January
Piedmont, WA
- Average rainfall in January: 3.35"
The wettest month (with the highest rainfall) is January (3.35").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in January
Piedmont, WA
- Average rainfall days in January: 14.8 days
The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in January
Piedmont, WA
- Average snowfall in January: 3.07"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Piedmont, WA
- Average snowfall days in January: 2.8 days
The month with the highest number of snowfall days is February (7.2 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
Piedmont, WA
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Piedmont, WA
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in January
Piedmont, WA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Piedmont, WA
- Average cloud cover in January: 61
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Piedmont, WA
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Piedmont, Washington, USA
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