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 arrival of January brings an average high-temperature of a still freezing cold 27.5°F (-2.5°C), closely following the temperature pattern of December. Throughout the month of January, the average temperature dips to an extreme cold 13.3°F (-10.4°C) at night.Humidity
The most humid month is January, with an average relative humidity of 83%.Rainfall
In Hanna, in January, during 5.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 80.5 rainfall days, and 8.39" (213mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Hanna, Wyoming, during January, snow falls for 11.1 days and regularly aggregates up to 3.58" (91mm) of snow. In Hanna, during the entire year, snow falls for 70.3 days and aggregates up to 29.57" (751mm) of snow.Daylight
In Hanna, the average length of the day in January is 9h and 33min.On the first day of January, sunrise is at 7:33 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:19 pm MST.
Sunshine
The average sunshine in January is 6.1h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 in January translates into these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Hanna have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Hanna, WY
- Average high temperature in January: 27.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in January: 13.3°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in January
Hanna, WY
- Average pressure in January: 30.21"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Hanna, WY
- Average wind speed in January: 11.9mph
The windiest month (with the highest average wind speed) is November (12.4mph).
The calmest months (with the lowest average wind speed) are July and August (9.3mph).
Average humidity in January
Hanna, WY
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (34%).
Average rainfall in January
Hanna, WY
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in January
Hanna, WY
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Hanna, WY
- Average snowfall in January: 3.58"
The month with the highest snowfall is March (5.47").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Hanna, WY
- Average snowfall days in January: 11.1 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Hanna, WY
- Average daylight in January: 9h and 3min
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: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 5h and 54min).
Average sunshine days in January
Hanna, WY
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in January
Hanna, 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
Hanna, 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 13).
Average visibility in January
Hanna, WY
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Hanna, Wyoming, USA
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