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
As Sleepy Hollow steps into January, the average high-temperature holds at a still freezing cold 30.4°F (-0.9°C), hinting at a minor fluctuation from the prior month. In Sleepy Hollow, the expected average low-temperature for January is a still subzero cold 17.6°F (-8°C).Humidity
January is the most humid month, with an average relative humidity of 78%.Rainfall
January is the month with the least rainfall. Rain falls for 2 days and accumulates 0.39" (10mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Sleepy Hollow, Wyoming, in January, during 7 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Sleepy Hollow, during the entire year, snow falls for 50.5 days and aggregates up to 19.53" (496mm) of snow.Daylight
In January, the average length of the day is 9h and 19min.On the first day of the month, sunrise is at 7:37 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:09 pm MST.
Sunshine
In Sleepy Hollow, the average sunshine in January is 5.8h.UV index
The months with the lowest UV index are January, February, April, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January in Sleepy Hollow?
How much does it snow in Sleepy Hollow in January?
How many hours of daylight does Sleepy Hollow have in January?
When is the sunrise / sunset in January?
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
Sleepy Hollow, WY
- Average high temperature in January: 30.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in January: 17.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in January
Sleepy Hollow, WY
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Sleepy Hollow, WY
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in January
Sleepy Hollow, WY
- Average humidity in January: 78%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall in January
Sleepy Hollow, WY
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in January
Sleepy Hollow, WY
- Average rainfall days in January: 2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in January
Sleepy Hollow, WY
- Average snowfall in January: 2.01"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Sleepy Hollow, WY
- Average snowfall days in January: 7 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Sleepy Hollow, WY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 5h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in January
Sleepy Hollow, WY
- Average sunshine days in January: 21.5 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in January
Sleepy Hollow, WY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover in January
Sleepy Hollow, WY
- Average cloud cover in January: 41
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in January
Sleepy Hollow, WY
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sleepy Hollow, Wyoming, USA
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