What’s the climate like in Alton?
The current climate of Alton features average monthly temperatures ranging from highs of 33°C during the day to lows of 17°C. The average yearly temperature is around 27°C. At night, temperatures in the colder months average around 5°C and in the warmer months around 24°C.
The highest temperature recorded in Alton in recent years was 42°C in August 2023. The lowest daytime temperature recorded was 1°C in January 2018.
On average, Alton receives 2749 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Best time to visit Alton?
The best time to visit Alton for pleasant to warm weather is January through December. There might be some rain during this period, but the temperatures are just right for exploring Alton.
Climate Table of Alton
The climate table of Alton shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 17 | 20 | 24 | 26 | 30 | 32 | 33 | 33 | 32 | 28 | 23 | 20 |
| Temp. min (°C) | 5 | 9 | 13 | 15 | 19 | 23 | 24 | 24 | 22 | 16 | 10 | 9 |
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| Precipitation (mm) | 185 | 235 | 183 | 231 | 220 | 309 | 303 | 343 | 176 | 148 | 141 | 275 |
| UV Index | 3 | 4 | 6 | 6 | 7 | 7 | 5 | 6 | 7 | 5 | 5 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 27°C
- Highest temperature: 33°C in July and August
- Lowest temperature: 17°C in January
- Precipitation: 2749 mm per year, averaging 229 mm per month
- Driest months: 141 mm in November, 148 mm in October and 176 mm in September
- Wettest months: 343 mm in August, 309 mm in June and 303 mm in July
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Table of Contents
Average Temperature per Month in Alton
This graph shows the average maximum temperatures per month in Alton, Louisiana. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Alton
This graph shows how much precipitation Alton, Louisiana, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Alton
This graph shows the average UV index per month in Alton, Louisiana. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Alton
This graph shows the average yearly temperature in Alton, Louisiana. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Alton
This chart shows the total yearly precipitation in Alton, Louisiana, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences 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.
