August weather forecast
New Salem, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in New Salem, Illinois, with an average temperature ranging between min 65.5°F (18.6°C) and max 83.5°F (28.6°C).

Temperature

The commencement of August brings an average high-temperature of a still moderately hot 83.5°F (28.6°C), marking an inconsequential divergence from July. The average low-temperature of 65.5°F (18.6°C) is witnessed in New Salem during August.

Heat index

In August, the heat index is estimated at a tropical 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, the rain falls for 12.4 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in New Salem, there are 128.8 rainfall days, and 18.35" (466mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in New Salem is 13h and 41min.
On the first day of August, sunrise is at 6:03 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:35 pm CDT.

Sunshine

In New Salem, the average sunshine in August is 10h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during August translates into the following guidance:
Resist overexposure. Safeguarding from solar damage is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

How hot is August in New Salem?

The average high-temperature and low-temperature in New Salem, Illinois, during August are 83.5°F (28.6°C) and 65.5°F (18.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 91.4°F (33°C).

What is the average humidity in August in New Salem?

In New Salem, Illinois, the average relative humidity in August is 78%.

How much does it rain in New Salem in August?

In August, in New Salem, Illinois, the rain falls for 12.4 days. Throughout August, 1.85" (47mm) of precipitation is accumulated.

When it does not snow in New Salem?

May through October are months without snowfall.

How many hours of daylight does New Salem have in August?

In August, the average day length is 13h and 41min.

What time are sunrise and sunset in August in New Salem?

On the first day of August in New Salem, Illinois, sunrise is at 6:03 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:35 pm CDT.

How long on average sun shines in August in New Salem?

The average sunshine duration in August in New Salem is 10h.

What is the month with the highest UV index in New Salem?

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

What is the UV index reading in August in New Salem?

In New Salem, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
New Salem, IL

Average temperature in August - New Salem, IL
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in August
New Salem, IL

Average pressure in August - New Salem, IL
  • Average pressure in August: 29.97"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).

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Average wind speed in August
New Salem, IL

Average wind speed in August - New Salem, IL
  • Average wind speed in August: 6.2mph

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in August
New Salem, IL

Average humidity in August - New Salem, IL
  • Average humidity in August: 78%

The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
New Salem, IL

Average rainfall in August - New Salem, IL
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is February (0.75").

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Average rainfall days in August
New Salem, IL

Average rainfall days in August - New Salem, IL
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in August
New Salem, IL

Average snowfall in August - New Salem, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
New Salem, IL

Average snowfall days in August - New Salem, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
New Salem, IL

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

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 August: 10h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in August
New Salem, IL

Average sunshine days in August - New Salem, IL
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in August
New Salem, IL

Average UV index in August - New Salem, IL
  • Average UV index in August: 6

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).

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Average cloud cover in August
New Salem, IL

Average cloud cover in August - New Salem, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

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Average visibility in August
New Salem, IL

Average visibility in August - New Salem, 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).

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New Salem, Illinois, USA

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