January weather forecast
East Olympia, WA

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Weather in January

January, like December, is a frosty winter month in East Olympia, Washington, with an average temperature fluctuating between 34.3°F (1.3°C) and 44.6°F (7°C).

Temperature

The onset of January brings with it an average high-temperature of a still frosty 44.6°F (7°C), showing a negligible variation from the month before. East Olympia's nighttime temperature in January falls to an average of 34.3°F (1.3°C).

Humidity

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

Rainfall

In East Olympia, in January, it is raining for 18.9 days, with typically 5.71" (145mm) of accumulated precipitation. In East Olympia, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In January, it is snowing for 1.9 days. Throughout January, 1.38" (35mm) of snow is accumulated. In East Olympia, during the entire year, snow falls for 8.7 days and aggregates up to 5.31" (135mm) of snow.

Daylight

In January, the average length of the day in East Olympia is 9h and 2min.
On the first day of January, sunrise is at 7:56 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:12 pm PST.

Sunshine

In January, the average sunshine 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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in East Olympia during January?

The high-temperature, in January, in East Olympia, records 44.6°F (7°C), while the low-temperature is 34.3°F (1.3°C).

What is the most humid month in East Olympia?

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

What is the average humidity in January in East Olympia?

In January, the average relative humidity in East Olympia is 89%.

How much does it rain in East Olympia in January?

In January, in East Olympia, Washington, the rain falls for 18.9 days. Throughout January, 5.71" (145mm) of precipitation is accumulated.

How much does it snow in East Olympia in January?

In East Olympia, in January, during 1.9 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the average length of the day in January in East Olympia?

The average day length in January in East Olympia is 9h and 2min.

When are sunrise and sunset in January in East Olympia?

In January, on the first day of the month, sunrise is at 7:56 am and sunset at 4:32 pm. On the last day of the month, in East Olympia, Washington, sunrise is at 7:37 am and sunset at 5:12 pm PST.

How long on average sun shines in January in East Olympia?

In January, the average sunshine duration is 3.5h.

When is the lowest UV index in East Olympia?

The months with the lowest UV index in East Olympia, Washington, are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in January in East Olympia?

The average daily maximum UV index in January in East Olympia is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average max. wind speed
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
East Olympia, WA

Average temperature in January - East Olympia, 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
East Olympia, WA

Average pressure in January - East Olympia, 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
East Olympia, WA

Average wind speed in January - East Olympia, 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
East Olympia, WA

Average humidity in January - East Olympia, 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
East Olympia, WA

Average rainfall in January - East Olympia, 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
East Olympia, WA

Average rainfall days in January - East Olympia, 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
East Olympia, WA

Average snowfall in January - East Olympia, 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
East Olympia, WA

Average snowfall days in January - East Olympia, 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
East Olympia, WA

Average daylight in January / Average sunshine in January - East Olympia, 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
East Olympia, WA

Average sunshine days in January - East Olympia, 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
East Olympia, WA

Average UV index in January - East Olympia, 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
East Olympia, WA

Average cloud cover in January - East Olympia, 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
East Olympia, WA

Average visibility in January - East Olympia, 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).

East Olympia, Washington, USA

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