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 27.1°F (-2.7°C), closely corresponding to the preceding month. Newcastle records an average low of 12.2°F (-11°C) throughout the nights in January.Humidity
In January, the average relative humidity is 83%.Rainfall
In Newcastle, Wyoming, in January, during 4.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Newcastle, during the entire year, the rain falls for 123.2 days and collects up to 19.37" (492mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Newcastle, in January, snow falls for 12.8 days, with typically accumulated 4.33" (110mm) of snow. Throughout the year, there are 80.3 snowfall days, and 41.38" (1051mm) of snow is accumulated.Daylight
In Newcastle, the average length of the day in January is 9h and 22min.On the first day of January, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:05 pm MST.
Sunshine
In January, the average sunshine is 5.8h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Newcastle?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Newcastle have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January in Newcastle?
Average temperature in January
Newcastle, WY
- Average high temperature in January: 27.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.2°F).
- Average low temperature in January: 12.2°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (10.8°F).
Average pressure in January
Newcastle, WY
- Average pressure in January: 30.13"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Newcastle, WY
- Average wind speed in January: 8.7mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in January
Newcastle, WY
- Average humidity in January: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (53%).
Average rainfall in January
Newcastle, WY
- Average rainfall in January: 0.75"
The wettest months (with the highest rainfall) are June and July (2.68").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in January
Newcastle, WY
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in January
Newcastle, WY
- Average snowfall in January: 4.33"
The month with the highest snowfall is April (8.82").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Newcastle, WY
- Average snowfall days in January: 12.8 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Newcastle, WY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in January
Newcastle, WY
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in January
Newcastle, WY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Newcastle, WY
- Average cloud cover in January: 42
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in January
Newcastle, WY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Newcastle, Wyoming, USA
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