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
The introduction of January in Winthrop sees an average high-temperature of a still freezing cold 29.3°F (-1.5°C), hardly deviating from December. The nighttime temperature, during January, averages of 14.2°F (-9.9°C).Humidity
The most humid month is January, with an average relative humidity of 93%.Rainfall
In Winthrop, Washington, during January, the rain falls for 12 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Winthrop, during the entire year, the rain falls for 142.6 days and collects up to 17.91" (455mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. In January, it is snowing for 14.8 days. Throughout January, 11.81" (300mm) of snow is accumulated. In Winthrop, during the entire year, snow falls for 66.9 days and aggregates up to 43.98" (1117mm) of snow.Daylight
In January, the average length of the day is 8h and 51min.On the first day of the month, sunrise is at 7:52 am and sunset at 4:16 pm. On the last day of January, sunrise is at 7:31 am and sunset at 4:57 pm PST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year in Winthrop.UV index
January, February and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in January transforms into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is it in Winthrop in January?
What is the most humid month in Winthrop?
What is the average humidity in January in Winthrop?
How many days does it rain in January in Winthrop?
How much does it snow in Winthrop in January?
What is the average length of the day in January in Winthrop?
When are sunrise and sunset in January in Winthrop?
What is the month with the least sunshine in Winthrop?
How long on average sun shines in January in Winthrop?
What is the month with the lowest UV index in Winthrop?
What is the UV index reading in January in Winthrop?
Average temperature in January
Winthrop, WA
- Average high temperature in January: 29.3°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in January: 14.2°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (13.5°F).
Average pressure in January
Winthrop, WA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).
Average wind speed in January
Winthrop, WA
- Average wind speed in January: 3.6mph
The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are January and December (3.6mph).
Average humidity in January
Winthrop, WA
- Average humidity in January: 93%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in January
Winthrop, WA
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Winthrop, WA
- Average rainfall days in January: 12 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in January
Winthrop, WA
- Average snowfall in January: 11.81"
The month with the highest snowfall is December (12.87").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in January
Winthrop, WA
- Average snowfall days in January: 14.8 days
The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Winthrop, 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: 4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Winthrop, WA
- Average sunshine days in January: 11.1 days
The month with the most sunshine days is August (23 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in January
Winthrop, WA
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in January
Winthrop, WA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in January
Winthrop, WA
- Average visibility in January: 3mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Winthrop, Washington, USA
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