January weather forecastOpal, WY
January
Weather in January
January, the same as December, in Opal, Wyoming, is a freezing cold winter month, with an average temperature ranging between min 9.9°F (-12.3°C) and max 26.6°F (-3°C).Temperature
January experiences an average high-temperature of a still subzero cold 26.6°F (-3°C), barely different from December's 25.7°F (-3.5°C). Opal cools down to an average low-temperature of 9.9°F (-12.3°C) throughout the month of January.Humidity
The months with the highest humidity in Opal are January and February, with an average relative humidity of 87%.Rainfall
In Opal, in January, during 7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 96.8 rainfall days, and 11.46" (291mm) of precipitation is accumulated.Snowfall
Months with snowfall in Opal, Wyoming, are January through June, September through December. In January, in Opal, Wyoming, it is snowing for 12.9 days. Throughout January, 4.45" (113mm) of snow is accumulated. Throughout the year, in Opal, there are 88.9 snowfall days, and 38.86" (987mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:48 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:34 pm MST.
Sunshine
With an average of 5.7h of sunshine, January has the least sunshine of the year.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Opal. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Opal, WY
- Average high temperature in January: 26.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in January: 9.9°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in January
Opal, WY
- Average pressure in January: 30.29"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Opal, WY
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Opal, WY
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).
Average rainfall in January
Opal, WY
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in January
Opal, WY
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in January
Opal, WY
- Average snowfall in January: 4.45"
The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Opal, WY
- Average snowfall days in January: 12.9 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Opal, WY
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in January
Opal, WY
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).
Average UV index in January
Opal, WY
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Opal, WY
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in January
Opal, WY
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
