January weather forecast
Lacey, WA

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Weather in January

January in Lacey, Washington, introduces the year with a brisk note. A blanket of clouds covers the sky for much of the month, causing frequent rainfall. Snowfall is also a distinct possibility, as the temperatures often oscillate near the freezing point. On the brighter side, the limited hours of daylight are revitalized by 3.5h of sunshine. This month sees the lowest average daytime temperature, at 44.6°F (7°C), providing a frosty welcome to the year.

Temperature

The arrival of January records an average high-temperature of a still chilly 44.6°F (7°C), closely related to the 43°F (6.1°C) observed in December. In Lacey, the nighttime temperature averages to an icy 34.3°F (1.3°C) during January.

Humidity

The months with the highest humidity in Lacey are January, November and December, with an average relative humidity of 89%.

Rainfall

In Lacey, during January, the rain falls for 18.9 days and regularly aggregates up to 5.71" (145mm) of 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, Washington, during the entire year, snow falls for 8.7 days and aggregates up to 5.31" (135mm) of snow.

Daylight

In Lacey, the average length of the day in January is 9h and 1min.
On the first day of January in Lacey, Washington, 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 January, the average sunshine in Lacey is 3.5h.

UV index

The months with the lowest UV index in Lacey are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, a regular UV index of 2 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold does it get in Lacey in January?

The high-temperature during January is 44.6°F (7°C) and the low-temperature is 34.3°F (1.3°C).

What is the most humid month in Lacey?

The months with the highest humidity are January, November and December, with an average relative humidity of 89%.

What is the average humidity in January in Lacey?

The average relative humidity in January in Lacey, Washington, is 89%.

How much does it rain in Lacey in January?

In Lacey, during January, the rain falls for 18.9 days and regularly aggregates up to 5.71" (145mm) of precipitation.

How much does it snow in Lacey in January?

In Lacey, Washington, in January, snow falls for 1.9 days, with typically accumulated 1.38" (35mm) of snow.

How many hours of daylight does Lacey have in January?

The average day length in January in Lacey, Washington, is 9h and 1min.

What time are sunrise and sunset in January in Lacey?

In January, on the first day of the month, sunrise is at 7:57 am and sunset at 4:32 pm. On the last day of the month, in Lacey, sunrise is at 7:37 am and sunset at 5:11 pm PST.

How many hours of sunshine does Lacey have in January?

In January, the average sunshine duration in Lacey, Washington, is 3.5h.

What is the month with the lowest UV index in Lacey?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in January in Lacey?

In January, the average daily maximum UV index in Lacey, Washington, is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
43°F 6.1°C
44.6°F 7°C
46°F 7.8°C
Average low temperature
33.4°F 0.8°C
34.3°F 1.3°C
33.6°F 0.9°C
Average pressure
30.08" 764mmHg
30.09" 764mmHg
30.06" 764mmHg
Average wind speed
4.2mph 6.8km/h
4.5mph 7.2km/h
4.5mph 7.2km/h
Average max. wind speed
4.7mph 7.6km/h
5mph 8km/h
5mph 8km/h
Average wind speed gusts
7.4mph 11.9km/h
7.8mph 12.6km/h
7.7mph 12.4km/h
Average humidity
89%
89%
88%
Average rainfall
5.79" 147mm
5.71" 145mm
3.5" 89mm
Average rainfall days
18.8
18.9
17.4
Average snowfall
0.31" 8mm
1.38" 35mm
2.32" 59mm
Average snowfall days
1.4
1.9
3.3
Average daylight
8h 4min
9h 0min
10h 2min
Average sunshine
3h 2min
3h 3min
3h 4min
Average sunshine days
9.8
9.8
8.4
Average UV index
2
2
2
Average cloud cover
65%
65%
64%
Average visibility
4mi 6.4km
4mi 6.4km
4mi 6.4km

Average temperature in January
Lacey, WA

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).

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Average pressure in January
Lacey, WA

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).

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Average wind speed in January
Lacey, WA

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).

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Average humidity in January
Lacey, WA

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%).

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Average rainfall in January
Lacey, WA

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").

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Average rainfall days in January
Lacey, WA

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).

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Average snowfall in January
Lacey, WA

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").

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Average snowfall days in January
Lacey, WA

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).

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Average daylight in January /
Average sunshine in January
Lacey, WA

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).

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Average sunshine days in January
Lacey, WA

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).

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Average UV index in January
Lacey, WA

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).

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Average cloud cover in January
Lacey, WA

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).

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Average visibility in January
Lacey, WA

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).

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Lacey, Washington, USA

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