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
Temperature records mark January as the coldest month, with highs averaging 49.8°F (9.9°C) and lows at 33.8°F (1°C).Humidity
In January, the average relative humidity is 75%.Rainfall
In Grantley, in January, during 10.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. 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 in Grantley, Alabama. The month with the most snowfall is January, when snow falls for 1.3 days and typically aggregates up to 0.55" (14mm) of snow.Daylight
The average length of the day in January is 10h and 12min.On the first day of January in Grantley, sunrise is at 6:47 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 5:11 pm CST.
Sunshine
In Grantley, Alabama, the average sunshine in January is 5.2h.UV index
In January, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: During January, 3 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To guard against the harmful effects of the Sun, minimize exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the coldest time of year in Grantley?
What is the average January temperature in Grantley?
What is the average humidity in January in Grantley?
How many days does it rain in January in Grantley?
When does it snow the most in Grantley?
How much does it snow in Grantley in January?
What is the average length of the day in January in Grantley?
What time are sunrise and sunset in January in Grantley?
How many hours of sunshine does Grantley have in January?
How high is the UV index in January in Grantley?
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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