July weather forecast
Otterville, IL

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Weather in July

July, like June, in Otterville, Illinois, is a moderately hot summer month, with an average temperature varying between 84.7°F (29.3°C) and 67.6°F (19.8°C).

Temperature

The temperatures reach their highest averages in July, with highs of 84.7°F (29.3°C) and lows of 67.6°F (19.8°C).

Heat index

For most parts of July, the heat index is evaluated at a fiery hot 96.8°F (36°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The most humid month in Otterville, Illinois, is July, with an average relative humidity of 80%.

Rainfall

In Otterville, in July, during 15.9 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 136.5 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Otterville.

Daylight

In Otterville, the average length of the day in July is 14h and 35min.
On the first day of the month, sunrise is at 5:39 am and sunset at 8:31 pm. On the last day of July, in Otterville, Illinois, sunrise is at 6:02 am and sunset at 8:13 pm CDT.

Sunshine

The average sunshine in July in Otterville is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during July translates into the following guidance:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What are the warmest months in Otterville?

July, noted for its average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 67.6°F (19.8°C), is considered the warmest month in Otterville, Illinois.

How hot is it in Otterville in July?

The high-temperature, in July, in Otterville, is 84.7°F (29.3°C), while the low-temperature averages to 67.6°F (19.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is evaluated at 96.8°F (36°C).

What is the most humid month in Otterville?

The most humid month in Otterville is July, with an average relative humidity of 80%.

What is the average humidity in July in Otterville?

The average relative humidity in July is 80%.

How many days does it rain in July in Otterville?

In Otterville, Illinois, in July, it is raining for 15.9 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow in Otterville?

In Otterville, Illinois, snow does not fall in April through October.

How many hours of daylight does Otterville have in July?

The average day length in July in Otterville is 14h and 35min.

What time are sunrise and sunset in July in Otterville?

On the first day of July, sunrise is at 5:39 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:13 pm CDT.

How many hours of sunshine does Otterville have in July?

In July, the average sunshine duration in Otterville is 10.3h.

What is the month with the highest UV index in Otterville?

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

What is the UV index intensity in July in Otterville?

In July, the average daily maximum UV index in Otterville is 6. A UV Index reading of 6 to 7 represents a high health threat 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 July
Otterville, IL

Average temperature in July - Otterville, IL
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in July
Otterville, IL

Average pressure in July - Otterville, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Otterville, IL

Average wind speed in July - Otterville, IL
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in July
Otterville, IL

Average humidity in July - Otterville, IL
  • Average humidity in July: 80%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Otterville, IL

Average rainfall in July - Otterville, IL
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in July
Otterville, IL

Average rainfall days in July - Otterville, IL
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in July
Otterville, IL

Average snowfall in July - Otterville, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Otterville, IL

Average snowfall days in July - Otterville, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Otterville, IL

Average daylight in July / Average sunshine in July - Otterville, IL
  • Average daylight in July: 14h 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 30min).

  • Average sunshine in July: 10h and 2min

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 30min).

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Average sunshine days in July
Otterville, IL

Average sunshine days in July - Otterville, IL
  • Average sunshine days in July: 13.1 days

The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and June (12.3 days).

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Average UV index in July
Otterville, IL

Average UV index in July - Otterville, IL
  • Average UV index in July: 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).

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Average cloud cover in July
Otterville, IL

Average cloud cover in July - Otterville, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).

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Average visibility in July
Otterville, IL

Average visibility in July - Otterville, IL
  • Average visibility in July: 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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Otterville, Illinois, USA

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