Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Chambersburg, Illinois, with an average temperature varying between 32.7°F (0.4°C) and 20.3°F (-6.5°C). In Chambersburg, January is the month with the lowest recorded average temperatures, measuring a high of 32.7°F (0.4°C) and a low of 20.3°F (-6.5°C). Weather in January »
Weather in February
February, the last month of the winter in Chambersburg, is also a wintry month, with an average temperature varying between 37.9°F (3.3°C) and 24.3°F (-4.3°C). Chambersburg's weather in February indicates an average high-temperature of a still icy 37.9°F (3.3°C), nearly consistent with the 32.7°F (0.4°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Chambersburg, is a fresh month, with an average temperature varying between 35.2°F (1.8°C) and 50.9°F (10.5°C). As March sets, the average high-temperature shows an increase, moving up from a cold 37.9°F (3.3°C) in February to a fresh 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Chambersburg, Illinois, with an average temperature fluctuating between 62.6°F (17°C) and 45.3°F (7.4°C). Chambersburg in April shows a temperature shift, moving from an average high of a fresh 50.9°F (10.5°C) in March to a refreshing 62.6°F (17°C). Weather in April »
Weather in May
May, the last month of the spring in Chambersburg, is an agreeable month, with temperature in the range of an average high of 72°F (22.2°C) and an average low of 55.6°F (13.1°C). As May arrives, a rise in the average high-temperature is observed, moving from a refreshing 62.6°F (17°C) in April to an agreeable 72°F (22.2°C). Weather in May »
Weather in June
June, the first month of the summer in Chambersburg, is a moderately hot month, with an average temperature ranging between min 64°F (17.8°C) and max 81°F (27.2°C). The start of June signals an increase in the average high-temperature, moving from an agreeable 72°F (22.2°C) in May to a moderately hot 81°F (27.2°C). Weather in June »
Weather in July
July, like June, in Chambersburg, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 83.7°F (28.7°C) and 66.6°F (19.2°C). The warmest month is July, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 66.6°F (19.2°C). For July, the heat index is estimated at a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Chambersburg, Illinois, with an average temperature fluctuating between 64.4°F (18°C) and 82.9°F (28.3°C). Chambersburg marks the start of August with an average high-temperature of a still warm 82.9°F (28.3°C), hinting at a slight fluctuation from July's 83.7°F (28.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Chambersburg, Illinois, with an average temperature ranging between max 77.7°F (25.4°C) and min 58.1°F (14.5°C). The arrival of September sees an average high-temperature of a still moderately hot 77.7°F (25.4°C), hardly diverging from August's 82.9°F (28.3°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Chambersburg, Illinois, with an average temperature fluctuating between 46.8°F (8.2°C) and 63.9°F (17.7°C). Onset of October comes with a temperature decline, the average high falling from a warm 77.7°F (25.4°C) in September to a refreshing 63.9°F (17.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Chambersburg, is also a fresh month, with an average temperature fluctuating between 50°F (10°C) and 35.6°F (2°C). The arrival of November signals a shift in temperature, down from a refreshing 63.9°F (17.7°C) in October to a cool 50°F (10°C). Weather in November »
Weather in December
December, the first month of the winter in Chambersburg, is also an icy month, with an average temperature varying between 26.8°F (-2.9°C) and 38.5°F (3.6°C). As December commences, the average high-temperature shows a reduction, transitioning from a cool 50°F (10°C) in November to a cold 38.5°F (3.6°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Chambersburg?
January, noted for its average high-temperature of 32.7°F (0.4°C) and an average low-temperature of 20.3°F (-6.5°C), is considered the coldest month in Chambersburg, Illinois.
What is the driest month in Chambersburg?
The month with the least rainfall is January, when the rain falls for 5.3 days and typically collects 0.98" (25mm) of precipitation.
How much does it rain in Chambersburg?
Throughout the year, in Chambersburg, there are 132 rainfall days, and 22.17" (563mm) of precipitation is accumulated.
When does it snow in Chambersburg?
Months with snowfall are January through April, November and December.
What is the snowiest month in Chambersburg?
January is the month with the most snowfall in Chambersburg, Illinois. Snow falls for 7.8 days and accumulates 3.19" (81mm) of snow.
How many days does it snow in Chambersburg?
In Chambersburg, during the entire year, snow falls for 23.8 days and aggregates up to 8.5" (216mm) of snow.
What is the month with the least sunshine in Chambersburg?
The month with the least sunshine in Chambersburg, Illinois, is January, with an average of 4.3h of sunshine.
What are the months with the lowest UV index in Chambersburg?
The months with the lowest UV index in Chambersburg, Illinois, are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in Chambersburg?
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 ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Chambersburg?
The month with the most rainfall in Chambersburg, Illinois, is May, when the rain falls for 16.9 days and typically aggregates up to 3.23" (82mm) of precipitation.
When it does not snow in Chambersburg?
In Chambersburg, snow does not fall in May through October.
When are the longest days in Chambersburg?
The month with the longest days in Chambersburg, Illinois, is June, with an average of 14h and 54min of daylight.
What are the months with the most sunshine in Chambersburg?
June and July, with an average of 10.2h of sunshine, are months with the most sunshine in Chambersburg.
What are the months with the highest UV index in Chambersburg?
The months with the highest UV index in Chambersburg are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Chambersburg?
Chambersburg, Illinois, experiences its average highest temperatures in July, reaching a peak of 83.7°F (28.7°C) and a minimum of 66.6°F (19.2°C).
What is the most humid month in Chambersburg?
The most humid month in Chambersburg is July, with an average relative humidity of 82%.
What is the least humid month in Chambersburg?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days in Chambersburg?
The month with the shortest days in Chambersburg is December, with an average of 9h and 24min of daylight.
Average temperature
Chambersburg, IL
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.7°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 (20.3°F).
Average pressure
Chambersburg, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"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
Chambersburg, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Chambersburg, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Chambersburg, IL
- Average rainfall in January:
0.98" - Average rainfall in February:
1.06" - Average rainfall in March:
1.85" - Average rainfall in April:
2.44" - Average rainfall in May:
3.23" - Average rainfall in June:
2.48"
- Average rainfall in July:
1.81" - Average rainfall in August:
1.89" - Average rainfall in September:
2.2" - Average rainfall in October:
1.69" - Average rainfall in November:
1.46" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days
Chambersburg, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is May (16.9 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall
Chambersburg, IL
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Chambersburg, IL
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Chambersburg, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 January:
4h and 2min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Chambersburg, IL
- Average sunshine days in January:
20 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Chambersburg, IL
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
Chambersburg, IL
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility
Chambersburg, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chambersburg, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location