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
In Grantley, the lowest temperatures are generally noted in January, averaging a high of 49.8°F (9.9°C) and a low of 33.8°F (1°C).Humidity
In Grantley, the average relative humidity in January is 75%.Rainfall
In Grantley, during January, the rain falls for 10.1 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 154.5 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. The month with the most snowfall in Grantley is January, when snow falls for 1.3 days and typically aggregates up to 0.55" (14mm) of snow.Daylight
In Grantley, the average length of the day in January is 10h and 12min.On the first day of the month, sunrise is at 6:47 am and sunset at 4:44 pm. On the last day of January, sunrise is at 6:39 am and sunset at 5:11 pm CST.
Sunshine
In January, the average sunshine is 5.2h.UV index
In Grantley, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In January, a regular UV index of 3 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Grantley have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Grantley have in January?
What is the UV index intensity in January?
Average temperature in January
Grantley, AL
- Average high temperature in January: 49.8°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in January: 33.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in January
Grantley, 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
Grantley, AL
- Average wind speed in January: 7.1mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Grantley, AL
- Average humidity in January: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Grantley, AL
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").
Average rainfall days in January
Grantley, AL
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in January
Grantley, AL
- Average snowfall in January: 0.55"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Grantley, AL
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Grantley, AL
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 5h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Grantley, AL
- Average sunshine days in January: 19 days
The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in January
Grantley, AL
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in January
Grantley, AL
- Average cloud cover in January: 44
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in January
Grantley, AL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Grantley, Alabama, USA
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