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 transition into January shows a subtle variation to a wintry 32.9°F (0.5°C) from December's 31.5°F (-0.3°C) in the average high-temperature. Reardan, in January, witnesses an average low-temperature of 23°F (-5°C).Humidity
The most humid month in Reardan is January, with an average relative humidity of 90%.Rainfall
The months with the most rainfall are January and December, with an average 1.93" (49mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is January, when snow falls for 14.3 days and typically aggregates up to 10.08" (256mm) of snow.Daylight
In January, the average length of the day is 8h and 57min.On the first day of the month, sunrise is at 7:39 am and sunset at 4:10 pm. On the last day of January, sunrise is at 7:19 am and sunset at 4:50 pm PST.
Sunshine
In January, the average sunshine is 4.1h.UV index
In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in January translates into these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be attentive! The reflective property of snow can nearly double 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?
What is the wettest month?
How many days does it rain in January in Reardan?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January in Reardan?
What time are sunrise and sunset in January in Reardan?
How many hours of sunshine does Reardan have in January?
What is the UV index intensity in January?
Average temperature in January
Reardan, WA
- Average high temperature in January: 32.9°F
The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in January: 23°F
The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in January
Reardan, 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 (29.9"Hg).
Average wind speed in January
Reardan, WA
- Average wind speed in January: 6.2mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in January
Reardan, WA
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).
Average rainfall in January
Reardan, WA
- Average rainfall in January: 1.93"
The wettest months (with the highest rainfall) are January and December (1.93").
The driest month (with the least rainfall) is August (0.28").
Average rainfall days in January
Reardan, WA
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is July (4.6 days).
Average snowfall in January
Reardan, WA
- Average snowfall in January: 10.08"
The month with the highest snowfall is January (10.08").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Reardan, WA
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Reardan, WA
- Average daylight in January: 8h and 5min
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: 4h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in January
Reardan, WA
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is March (11.1 days).
Average UV index in January
Reardan, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in January
Reardan, WA
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in January
Reardan, WA
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Reardan, Washington, USA
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