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 advent denotes a minor fluctuation in the average high-temperature to a still wintry 42.1°F (5.6°C) from December's 40.5°F (4.7°C). Lyman's nocturnal January readings average at a still icy 33.6°F (0.9°C), showing little variation from the daytime temperatures.Humidity
January through March, with an average relative humidity of 86%, are the most humid months in Lyman.Rainfall
In Lyman, during January, the rain falls for 18.8 days and regularly aggregates up to 6.54" (166mm) of precipitation. In Lyman, during the entire year, the rain falls for 203.2 days and collects up to 49.72" (1263mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Lyman, Washington, in January, snow falls for 2.6 days, with typically accumulated 3.62" (92mm) of snow. In Lyman, during the entire year, snow falls for 12 days and aggregates up to 12.32" (313mm) of snow.Daylight
In January, the average length of the day is 8h and 51min.On the first day of January, sunrise is at 8:00 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:04 pm PST.
Sunshine
In January, the average sunshine is 3.8h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 2 suggests these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Lyman?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January in Lyman?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index in Lyman?
How high is the UV index in January?
Average temperature in January
Lyman, WA
- Average high temperature in January: 42.1°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).
- Average low temperature in January: 33.6°F
The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).
Average pressure in January
Lyman, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Lyman, WA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in January
Lyman, WA
- Average humidity in January: 86%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).
Average rainfall in January
Lyman, WA
- Average rainfall in January: 6.54"
The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").
Average rainfall days in January
Lyman, WA
- Average rainfall days in January: 18.8 days
The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).
Average snowfall in January
Lyman, WA
- Average snowfall in January: 3.62"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Lyman, WA
- Average snowfall days in January: 2.6 days
The month with the highest number of snowfall days is February (4.3 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
Lyman, WA
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
Lyman, WA
- Average sunshine days in January: 9.9 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in January
Lyman, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Lyman, WA
- Average cloud cover in January: 60
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Lyman, WA
- Average visibility in January: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
Lyman, Washington, USA
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