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 average high-temperature during January registers at a still freezing cold 30.4°F (-0.9°C), closely corresponding to the preceding month. In the month of January, Sleepy Hollow's average low-temperature falls to a still freezing cold 17.6°F (-8°C).Humidity
The most humid month is January, 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
January through May, September through December are months with snowfall. In Sleepy Hollow, during January, snow falls for 7 days and regularly aggregates up to 2.01" (51mm) of snow. Throughout the year, there are 50.5 snowfall days, and 19.53" (496mm) of snow is accumulated.Daylight
In Sleepy Hollow, the average length of the day in January 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
The average sunshine in January is 5.8h.UV index
The months with the lowest UV index in Sleepy Hollow 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 low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is January in Sleepy Hollow?
What is the most humid month in Sleepy Hollow?
What is the average humidity in January in Sleepy Hollow?
What is the driest month in Sleepy Hollow?
How much does it rain in Sleepy Hollow in January?
How many days does it snow in January in Sleepy Hollow?
How many hours of daylight does Sleepy Hollow have in January?
When are sunrise and sunset in January in Sleepy Hollow?
How long on average sun shines in January in Sleepy Hollow?
When is the lowest UV index in Sleepy Hollow?
How high is the UV index in January in Sleepy Hollow?
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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