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
January
Weather in January
Temperature
The transition from December to January brings an average high-temperature of a still chilly 44.6°F (7°C), barely different from December's 43°F (6.1°C). Lacey experiences an average low-temperature reading of 34.3°F (1.3°C) throughout January.Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 89%.Rainfall
In Lacey, in January, it is raining for 18.9 days, with typically 5.71" (145mm) of accumulated precipitation. Throughout the year, there are 177.4 rainfall days, and 37.05" (941mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Lacey, in January, snow falls for 1.9 days, with typically accumulated 1.38" (35mm) of snow. In Lacey, during the entire year, snow falls for 8.7 days and aggregates up to 5.31" (135mm) of snow.Daylight
The average length of the day in January is 9h and 1min.On the first day of January, sunrise is at 7:57 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:11 pm PST.
Sunshine
In Lacey, the average sunshine in January is 3.5h.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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Lacey have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Lacey have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Lacey, WA
- Average high temperature in January: 44.6°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in January: 34.3°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in January
Lacey, 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 March (30.01"Hg).
Average wind speed in January
Lacey, WA
- Average wind speed in January: 4.5mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in January
Lacey, WA
- Average humidity in January: 89%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in January
Lacey, WA
- Average rainfall in January: 5.71"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in January
Lacey, WA
- Average rainfall days in January: 18.9 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in January
Lacey, WA
- Average snowfall in January: 1.38"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Lacey, WA
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is February (3.3 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
Lacey, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in January
Lacey, WA
- Average sunshine days in January: 9.8 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in January
Lacey, 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
Lacey, WA
- Average cloud cover in January: 65
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in January
Lacey, WA
- Average visibility in January: 4mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).