March weather forecastChatham, IL
March
Weather in March
March, the first month of the spring in Chatham, is a cool month, with an average temperature fluctuating between 51.4°F (10.8°C) and 36°F (2.2°C).Temperature
As Chatham welcomes March, the average high-temperature sees a rise, transitioning from a wintry 38.3°F (3.5°C) in February to a fresh 51.4°F (10.8°C). During March, the nighttime temperature in Chatham averages to a wintry 36°F (2.2°C).Humidity
In Chatham, the average relative humidity in March is 75%.Rainfall
In March, in Chatham, the rain falls for 8.9 days. Throughout March, 0.71" (18mm) of precipitation is accumulated. In Chatham, Illinois, during the entire year, the rain falls for 104.2 days and collects up to 9.29" (236mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In March, it is snowing for 2.3 days. Throughout March, 0.31" (8mm) of snow is accumulated. In Chatham, during the entire year, snow falls for 18.6 days and aggregates up to 2.68" (68mm) of snow.Daylight
In Chatham, Illinois, the average length of the day in March is 11h and 59min.On the first day of March in Chatham, sunrise is at 6:30 am and sunset at 5:51 pm CST. On the last day of the month, sunrise is at 6:43 am and sunset at 7:22 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In Chatham, the average sunshine in March is 6.6h.UV index
In Chatham, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 3 during March morphs into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Chatham, IL
- Average high temperature in March: 51.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in March: 36°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in March
Chatham, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in March
Chatham, IL
- Average wind speed in March: 10mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in March
Chatham, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
Chatham, IL
- Average rainfall in March: 0.71"
The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in March
Chatham, IL
- Average rainfall days in March: 8.9 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in March
Chatham, IL
- Average snowfall in March: 0.31"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Chatham, IL
- Average snowfall days in March: 2.3 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Chatham, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in March: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in March
Chatham, IL
- Average sunshine days in March: 18.6 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (14 days).
Average UV index in March
Chatham, IL
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Chatham, IL
- Average cloud cover in March: 47
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in March
Chatham, IL
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





