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
Mountain Brook's January weather, marked by an average high temperature of 50.7°F (10.4°C) and an average low temperature of 35.2°F (1.8°C), is the coldest in the year.Humidity
In January, the average relative humidity is 75%.Rainfall
In Mountain Brook, during January, the rain falls for 8.7 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 143.1 rainfall days, and 18.58" (472mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 0.8 days and accumulates 0.12" (3mm) of snow.Daylight
In Mountain Brook, Alabama, the average length of the day in January is 10h and 14min.On the first day of January, sunrise is at 6:51 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 5:16 pm CST.
Sunshine
In January, the average sunshine is 5.2h.UV index
The average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during January leads to these instructions:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Mountain Brook?
What is the average January temperature?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does Mountain Brook have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
How high is the UV index in January?
Average temperature in January
Mountain Brook, AL
- Average high temperature in January: 50.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in January
Mountain Brook, AL
- 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 (29.98"Hg).
Average wind speed in January
Mountain Brook, AL
- Average wind speed in January: 7.3mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in January
Mountain Brook, AL
- Average humidity in January: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Mountain Brook, AL
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in January
Mountain Brook, AL
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in January
Mountain Brook, AL
- Average snowfall in January: 0.12"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Mountain Brook, AL
- Average snowfall days in January: 0.8 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Mountain Brook, AL
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Mountain Brook, AL
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in January
Mountain Brook, AL
- Average UV index in January: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in January
Mountain Brook, AL
- Average cloud cover in January: 44
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in January
Mountain Brook, AL
- 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).
Mountain Brook, Alabama, USA
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