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 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
Alton reaches its lowest average temperatures in January, measuring 62.2°F (16.8°C) at the peak and 44.2°F (6.8°C) at the lowest.Humidity
In Alton, the average relative humidity in January is 72%.Rainfall
In Alton, in January, during 8.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 173.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
In Alton, Florida, snow does not fall in January, March through December.Daylight
In Alton, the average length of the day in January is 10h and 28min.On the first day of the month, sunrise is at 7:28 am and sunset at 5:43 pm. On the last day of January, sunrise is at 7:23 am and sunset at 6:08 pm EST.
Sunshine
In Alton, the average sunshine in January is 6.5h.UV index
The month with the lowest UV index is January, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 3 in January leads to these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
When it does not snow?
Does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January in Alton?
Average temperature in January
Alton, FL
- Average high temperature in January: 62.2°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in January: 44.2°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in January
Alton, FL
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in January
Alton, FL
- Average wind speed in January: 6mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in January
Alton, FL
- Average humidity in January: 72%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is May (70%).
Average rainfall in January
Alton, FL
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is August (4.57").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in January
Alton, FL
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is November (7.2 days).
Average snowfall days in January
Alton, FL
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Alton, FL
- Average daylight in January: 10h and 3min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January: 6h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in January
Alton, FL
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in January
Alton, 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
Alton, FL
- Average cloud cover in January: 36
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in January
Alton, FL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Alton, Florida, USA
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