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United StatesThe weather in January in Alton
It's cool to moderate in January in Alton with an average temperature of 17°C. Temperatures this month range from a low of 15°C to a high of 20°C. At night, you can expect temperatures between 2°C and 9°C.
Looking for sun and warm weather? January isn’t a good month to be in Alton. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Alton, Louisiana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 32°C in 2023, Alton reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 1°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -9°C to a highest value of 24°C.
Rainfall amount
In January, there is an average of 185 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in January for Alton
Click on any day in January to get detailed info about the usual weather on that day in Alton. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| Alton | New York | |
|---|---|---|
| Average temperature | 17°C | 5°C |
| Max. temperature | 20°C | 11°C |
| Min. temperature | 2°C | -5°C |
| Total precipitation | 185 mm | 97 mm |
| Rainy days | 18 days | 12 days |
Start of January
The month of January starts in Alton with cool temps, averaging around 17°C during the day and nights around 6°C.
Mid January
By mid-January, daytime temps rise to around 18°C, with nights around 5°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of January
By the end of January, the average daytime temperature in Alton is around 18°C, while nighttime temps are about 5°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Alton for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in January in Alton, Louisiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Alton
Temperature in January in Alton over the years
Precipitation charts
These charts show the average amount of precipitation in January in Alton, Louisiana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in January in Alton
Total precipitation in January in Alton over the years
Daily UV index in January in Alton
This chart shows the average daily UV index in January in Alton, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in January in Alton
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Average weather in Alton by month
Click on a month below to see detailed weather info for Alton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.