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
Menlo's transition from December to January introduces an average high-temperature of a still frosty 45.7°F (7.6°C), marking an insignificant variation from the 44.1°F (6.7°C). January registers an average low temperature of 37.2°F (2.9°C), subtly lower than the daytime maximum.Humidity
In January, the average relative humidity is 87%.Rainfall
In January, the rain falls for 12.9 days. Throughout January, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 126 rainfall days, and 8.5" (216mm) of precipitation is accumulated.Snowfall
January through March and November are months with snowfall. January is the month with the most snowfall. Snow falls for 1.1 days and accumulates 0.47" (12mm) of snow.Daylight
In January, the average length of the day in Menlo is 9h and 4min.On the first day of January, sunrise is at 7:58 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:16 pm PST.
Sunshine
With an average of 3.5h of sunshine, January has the least sunshine of the year.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Menlo in January?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most?
When does it start to snow?
How many hours of daylight does Menlo have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Menlo, WA
- Average high temperature in January: 45.7°F
The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in January: 37.2°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (36.3°F).
Average pressure in January
Menlo, WA
- Average pressure in January: 30.07"Hg
The months with the highest atmospheric pressure are January, April and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in January
Menlo, WA
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in January
Menlo, WA
- Average humidity in January: 87%
The months with the highest relative humidity are November and December (88%).
The months with the lowest relative humidity are June and July (80%).
Average rainfall in January
Menlo, WA
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is December (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in January
Menlo, WA
- Average rainfall days in January: 12.9 days
The months with the highest number of rainy days are March and December (14.4 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in January
Menlo, WA
- Average snowfall in January: 0.47"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in January
Menlo, WA
- Average snowfall days in January: 1.1 days
The months with the highest number of snowfall days are January and February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Menlo, WA
- Average daylight in January: 9h and 1min
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 July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Menlo, WA
- Average sunshine days in January: 14.2 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in January
Menlo, 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, November and December (UV index 2).
Average cloud cover in January
Menlo, WA
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in January
Menlo, WA
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (5mi).
The months with the lowest visibility are July, August and September (4mi).
Menlo, Washington, USA
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