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 lowest temperatures are recorded in January, with averages reaching a high of 45.1°F (7.3°C) and a low of 31.5°F (-0.3°C).Humidity
The average relative humidity in January in Black Rock is 73%.Rainfall
In Black Rock, during January, the rain falls for 8.7 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, in Black Rock, there are 145.5 rainfall days, and 35.47" (901mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Black Rock, in January, during 2.7 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 7.1 snowfall days, and 3.82" (97mm) of snow is accumulated.Daylight
In Black Rock, the average length of the day in January is 10h and 2min.On the first day of the month, sunrise is at 7:15 am and sunset at 5:00 pm. On the last day of January, in Black Rock, sunrise is at 7:05 am and sunset at 5:29 pm CST.
Sunshine
In January, the average sunshine in Black Rock, Arkansas, is 5.2h.UV index
The months with the lowest UV index in Black Rock, Arkansas, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What time of the year is the coldest in Black Rock?
What are the temperatures in Black Rock in January?
What is the average humidity in January in Black Rock?
How many days does it rain in January in Black Rock?
How many days does it snow in January in Black Rock?
What is the average length of the day in January in Black Rock?
When are sunrise and sunset in January in Black Rock?
How many hours of sunshine does Black Rock have in January?
What are the months with the lowest UV index in Black Rock?
How high is the UV index in January in Black Rock?
Average temperature in January
Black Rock, AR
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in January: 31.5°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in January
Black Rock, AR
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Black Rock, AR
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Black Rock, AR
- Average humidity in January: 73%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Black Rock, AR
- Average rainfall in January: 2.32"
The wettest month (with the highest rainfall) is April (4.61").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in January
Black Rock, AR
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in January
Black Rock, AR
- Average snowfall in January: 0.59"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in January
Black Rock, AR
- Average snowfall days in January: 2.7 days
The month with the highest number of snowfall days is January (2.7 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
Black Rock, AR
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 5h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Black Rock, AR
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is October (19.8 days).
The months with the least sunshine days are April and May (13.8 days).
Average UV index in January
Black Rock, AR
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Black Rock, AR
- Average cloud cover in January: 42
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in January
Black Rock, AR
- 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).
Black Rock, Arkansas, USA
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