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United StatesThe weather in March in Alton
It's cool in March in Alton with an average temperature of 14°C. Temperatures this month range from a low of 8°C to a high of 19°C. At night, you can expect temperatures between -3°C and 7°C.
Looking for sun? March isn’t a good month to be in Alton. There’s too much chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in March for Alton, Illinois. 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 29°C in 2017, Alton reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was -8°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -17°C to a highest value of 19°C.
Precipitation and snowfall
In March, there is an average of 130 mm of precipitation, spread over 15 days. Of the total precipitation, about 2,5 cm falls as snow in March. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in March for Alton
Click on any day in March 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.
March weather comparison
| Alton | New York | |
|---|---|---|
| Average temperature | 14°C | 11°C |
| Max. temperature | 19°C | 14°C |
| Min. temperature | -3°C | -5°C |
| Total precipitation | 130 mm | 63 mm |
| Rainy days | 15 days | 10 days |
| Total snowfall | 2,5 cm | 7 cm |
| Snowy days | 2 days | 4 days |
Start of March
The month of March starts in Alton with cool temps, averaging around 12°C during the day and nights around 1°C.
Mid March
By mid-March, daytime temps rise to around 14°C, with nights around 4°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of March
By the end of March, the average daytime temperature in Alton is around 15°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 5 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 March in Alton, Illinois. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in March in Alton
Temperature in March in Alton over the years
Precipitation charts
These charts show the average amount of precipitation in March in Alton, Illinois. 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 March in Alton
Total precipitation in March in Alton over the years
Daily Snowfall in March in Alton
Snowfall in March in Alton per year
Daily UV index in March in Alton
This chart shows the average daily UV index in March 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 March 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.