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
At the onset of January, Merna records an average high-temperature of a still freezing cold 25.2°F (-3.8°C), showing little deviation from the preceding month. An average nighttime temperature of 5.2°F (-14.9°C) is recorded during January.Humidity
The months with the highest humidity in Merna, Wyoming, are January and February, with an average relative humidity of 87%.Rainfall
In Merna, in January, it is raining for 8.1 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 109.9 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Merna. In Merna, during January, snow falls for 13 days and regularly aggregates up to 5.94" (151mm) of snow. In Merna, during the entire year, snow falls for 89 days and aggregates up to 43.43" (1103mm) of snow.Daylight
The average length of the day in January is 9h and 27min.On the first day of the month, sunrise is at 7:52 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:37 am and sunset at 5:32 pm MST.
Sunshine
The month with the least sunshine is January, with an average of 6.2h of sunshine.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Merna. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the UV index of 2 transforms into the following advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Merna in January?
What is the most humid month in Merna?
What is the average humidity in January in Merna?
How many days does it rain in January in Merna?
How much does it snow in Merna in January?
What is the average length of the day in January in Merna?
When is the sunrise / sunset in January in Merna?
What is the month with the least sunshine in Merna?
How many hours of sunshine does Merna have in January?
What is the month with the lowest UV index in Merna?
What is the UV index intensity in January in Merna?
Average temperature in January
Merna, WY
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (23.7°F).
- Average low temperature in January: 5.2°F
The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is December (5°F).
Average pressure in January
Merna, WY
- Average pressure in January: 30.28"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Merna, WY
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in January
Merna, 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 (39%).
Average rainfall in January
Merna, WY
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in January
Merna, WY
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in January
Merna, WY
- Average snowfall in January: 5.94"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Merna, WY
- Average snowfall days in January: 13 days
The months with the highest number of snowfall days are February and March (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Merna, WY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in January
Merna, WY
- Average sunshine days in January: 16.9 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in January
Merna, 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
Merna, WY
- Average cloud cover in January: 36
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in January
Merna, 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).
Merna, Wyoming, USA
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