May weather forecast
Chambersburg, IL

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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).

Temperature

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). Chambersburg's average low-temperature in May is measured at a mild 55.6°F (13.1°C).

Humidity

In Chambersburg, Illinois, the average relative humidity in May is 80%.

Rainfall

The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

In Chambersburg, snow does not fall in May through October.

Daylight

The average length of the day in May is 14h and 23min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of May, in Chambersburg, sunrise is at 5:36 am and sunset at 8:24 pm CDT.

Sunshine

In Chambersburg, the average sunshine in May is 8.9h.

UV index

In Chambersburg, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during May leads to these instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Chambersburg in May?

May temperatures in Chambersburg vary between a high-temperature of 72°F (22.2°C) and a low-temperature of 55.6°F (13.1°C).

What is the average humidity in May in Chambersburg?

In Chambersburg, the average relative humidity in May is 80%.

What is the rainiest month in Chambersburg?

The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.23" (82mm) of precipitation.

How much does it rain in Chambersburg in May?

In May, in Chambersburg, the rain falls for 16.9 days. Throughout May, 3.23" (82mm) of precipitation is accumulated.

When it does not snow in Chambersburg?

In Chambersburg, Illinois, snow does not fall in May through October.

Does it snow in Chambersburg in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Chambersburg?

In Chambersburg, the average day length in May is 14h and 23min.

What time are sunrise and sunset in May in Chambersburg?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of the month, in Chambersburg, Illinois, sunrise is at 5:36 am and sunset at 8:24 pm CDT.

How many hours of sunshine does Chambersburg have in May?

The average sunshine duration in May is 8.9h.

What is the UV index intensity in May in Chambersburg?

In May, the average daily maximum UV index in Chambersburg, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Chambersburg, IL

Average temperature in May - Chambersburg, IL
  • Average high temperature in May: 72°F

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).

  • Average low temperature in May: 55.6°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 in May
Chambersburg, IL

Average pressure in May - Chambersburg, IL
  • Average pressure in May: 29.94"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 May
Chambersburg, IL

Average wind speed in May - Chambersburg, IL
  • Average wind speed in May: 8.3mph

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 in May
Chambersburg, IL

Average humidity in May - Chambersburg, IL
  • Average humidity in May: 80%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Chambersburg, IL

Average rainfall in May - Chambersburg, IL
  • Average rainfall in May: 3.23"

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 in May
Chambersburg, IL

Average rainfall days in May - Chambersburg, IL
  • Average rainfall days in May: 16.9 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 in May
Chambersburg, IL

Average snowfall in May - Chambersburg, IL
  • Average snowfall in May: 0"

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 in May
Chambersburg, IL

Average snowfall days in May - Chambersburg, IL
  • Average snowfall days in May: 0 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 in May /
Average sunshine in May
Chambersburg, IL

Average daylight in May / Average sunshine in May - Chambersburg, IL
  • Average daylight in May: 14h 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 May: 8h and 5min

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 in May
Chambersburg, IL

Average sunshine days in May - Chambersburg, IL
  • Average sunshine days in May: 11.4 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 in May
Chambersburg, IL

Average UV index in May - Chambersburg, IL
  • Average UV index in May: 5

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 May
Chambersburg, IL

Average cloud cover in May - Chambersburg, IL
  • Average cloud cover in May: 40

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 in May
Chambersburg, IL

Average visibility in May - Chambersburg, IL
  • Average visibility in May: 6mi

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

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