August weather forecast
Christopher, IL

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Weather in August

August, the last month of the summer in Christopher, is another warm month, with an average temperature ranging between max 85.3°F (29.6°C) and min 66°F (18.9°C).

Temperature

As Christopher steps into August, the average high-temperature is measured at a moderately hot 85.3°F (29.6°C), displaying minor differences from July's 87.1°F (30.6°C). Christopher witnesses a consistent average low-temperature of 66°F (18.9°C) throughout August.

Heat index

For most parts of August, the heat index is estimated at a sweltering 96.8°F (36°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 11.3 days. Throughout August, 1.61" (41mm) of precipitation is accumulated. In Christopher, during the entire year, the rain falls for 122.7 days and collects up to 18.03" (458mm) of precipitation.

Snowfall

In Christopher, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 35min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 in August translates into these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. 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.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature during August are 85.3°F (29.6°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 96.8°F (36°C).

What is the average humidity in August?

In Christopher, the average relative humidity in August is 77%.

How many days does it rain in August?

In Christopher, during August, the rain falls for 11.3 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Christopher have in August?

In Christopher, the average day length in August is 13h and 35min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.2h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe 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 August
Christopher, IL

Average temperature in August - Christopher, IL
  • Average high temperature in August: 85.3°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in August
Christopher, IL

Average pressure in August - Christopher, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Christopher, IL

Average wind speed in August - Christopher, IL
  • Average wind speed in August: 5.9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in August
Christopher, IL

Average humidity in August - Christopher, IL
  • Average humidity in August: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Christopher, IL

Average rainfall in August - Christopher, IL
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in August
Christopher, IL

Average rainfall days in August - Christopher, IL
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in August
Christopher, IL

Average snowfall in August - Christopher, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Christopher, IL

Average snowfall days in August - Christopher, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Christopher, IL

Average daylight in August / Average sunshine in August - Christopher, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in August
Christopher, IL

Average sunshine days in August - Christopher, IL
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in August
Christopher, IL

Average UV index in August - Christopher, IL
  • Average UV index in August: 6

The months with the highest UV index are May, 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 August
Christopher, IL

Average cloud cover in August - Christopher, IL
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in August
Christopher, IL

Average visibility in August - Christopher, IL
  • Average visibility in August: 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).

Christopher, Illinois, USA

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