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 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
January is the month when Sumatra experiences its coldest temperatures, averaging a high of 60.8°F (16°C) and a low of 45.3°F (7.4°C).Humidity
January, May and October, with an average relative humidity of 72%, are the least humid months.Rainfall
In Sumatra, during January, the rain falls for 10.3 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Sumatra, during the entire year, the rain falls for 164.7 days and collects up to 30.63" (778mm) of precipitation.Daylight
The average length of the day in January is 10h and 28min.On the first day of the month, sunrise is at 7:35 am and sunset at 5:50 pm. On the last day of January, sunrise is at 7:30 am and sunset at 6:15 pm EST.
Sunshine
In January, the average sunshine is 6h.UV index
The month with the lowest UV index is January, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in January interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What is the usual temperature for Sumatra in January?
What are the least humid months?
What is the average humidity in January?
How much does it rain in January?
How many hours of daylight does Sumatra have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Sumatra have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Sumatra, FL
- Average high temperature in January: 60.8°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in January: 45.3°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).
Average pressure in January
Sumatra, FL
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in January
Sumatra, FL
- Average wind speed in January: 7mph
The windiest months (with the highest average wind speed) are January and March (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Sumatra, FL
- Average humidity in January: 72%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, May and October (72%).
Average rainfall in January
Sumatra, FL
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in January
Sumatra, FL
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (7.5 days).
Average daylight in January /
Average sunshine in January
Sumatra, FL
- Average daylight in January: 10h and 3min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January: 6h and 0min
The months with the most sunshine are May, June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Sumatra, FL
- Average sunshine days in January: 19.2 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in January
Sumatra, FL
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in January
Sumatra, FL
- Average cloud cover in January: 35
The months with the most cloud cover are February and December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in January
Sumatra, FL
- 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).
Sumatra, Florida, USA
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