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
Rolla's January reports an average high-temperature of a still frosty 47.5°F (8.6°C), exhibiting a minor difference from December. Throughout January, an average low-temperature of 28.8°F (-1.8°C) is experienced.Humidity
The average relative humidity in January is 57%.Rainfall
In Rolla, during January, the rain falls for 2.8 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Rolla, during the entire year, the rain falls for 97.1 days and collects up to 14.25" (362mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 3.1 days and typically aggregates up to 1.38" (35mm) of snow.Daylight
The average length of the day in January is 9h and 58min.On the first day of January, sunrise is at 8:00 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 6:09 pm CST.
Sunshine
The average sunshine in January is 7.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Rolla. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in January translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Rolla have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Rolla, KS
- Average high temperature in January: 47.5°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.4°F).
- Average low temperature in January: 28.8°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is December (28°F).
Average pressure in January
Rolla, KS
- 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 (29.81"Hg).
Average wind speed in January
Rolla, KS
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest months (with the lowest average wind speed) are January and August (10.4mph).
Average humidity in January
Rolla, KS
- Average humidity in January: 57%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (45%).
Average rainfall in January
Rolla, KS
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in January
Rolla, KS
- Average rainfall days in January: 2.8 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (2.4 days).
Average snowfall in January
Rolla, KS
- Average snowfall in January: 1.38"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Rolla, KS
- Average snowfall days in January: 3.1 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rolla, KS
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 7h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in January
Rolla, KS
- Average sunshine days in January: 25 days
The month with the most sunshine days is November (26.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Rolla, KS
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Rolla, KS
- Average cloud cover in January: 22
The month with the most cloud cover is February (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in January
Rolla, KS
- 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).
Rolla, Kansas, USA
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