July weather forecast
Serena, IL

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Weather in July

July, like June, in Serena, Illinois, is another warm summer month, with an average temperature fluctuating between 81°F (27.2°C) and 64°F (17.8°C).

Temperature

The highest temperatures are recorded in July, with averages reaching a high of 81°F (27.2°C) and a low of 64°F (17.8°C).

Heat index

During July, the heat index is appraised at a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

The most humid month is July, with an average relative humidity of 85%.

Rainfall

In July, in Serena, the rain falls for 10.9 days. Throughout July, 0.98" (25mm) of precipitation is accumulated. Throughout the year, there are 97.4 rainfall days, and 8.07" (205mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Serena, the average length of the day in July is 14h and 50min.
On the first day of July in Serena, sunrise is at 5:25 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:13 pm CDT.

Sunshine

The average sunshine in July is 9.6h.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What month is the hottest in Serena?

Serena's warmest month, July, registers temperatures that range from a high of 81°F (27.2°C) to a low of 64°F (17.8°C).

What is the usual temperature for Serena in July?

During July, Serena experiences an average high-temperature of 81°F (27.2°C) and a low-temperature of 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is appraised at 87.8°F (31°C).

What is the most humid month in Serena?

July is the most humid month in Serena, Illinois, with an average relative humidity of 85%.

What is the average humidity in July in Serena?

In July, the average relative humidity in Serena, Illinois, is 85%.

How many days does it rain in July in Serena?

In Serena, during July, the rain falls for 10.9 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow in Serena?

May through September are months without snowfall.

What is the average length of the day in July in Serena?

In Serena, the average day length in July is 14h and 50min.

What time are sunrise and sunset in July in Serena?

On the first day of July, sunrise is at 5:25 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:13 pm CDT.

How many hours of sunshine does Serena have in July?

In July, the average sunshine duration in Serena, Illinois, is 9.6h.

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

June and July, with an average maximum UV index of 6, are months with the highest UV index in Serena, Illinois.

How high is the UV index in July in Serena?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents 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 July
Serena, IL

Average temperature in July - Serena, IL
  • Average high temperature in July: 81°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in July: 64°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in July
Serena, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Serena, IL

Average wind speed in July - Serena, IL
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in July
Serena, IL

Average humidity in July - Serena, IL
  • Average humidity in July: 85%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in July
Serena, IL

Average rainfall in July - Serena, IL
  • Average rainfall in July: 0.98"

The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is November (0.35").

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Average rainfall days in July
Serena, IL

Average rainfall days in July - Serena, IL
  • Average rainfall days in July: 10.9 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).

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Average snowfall in July
Serena, IL

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

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Serena, IL

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

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Serena, IL
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 9h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in July
Serena, IL

Average sunshine days in July - Serena, IL
  • Average sunshine days in July: 15 days

The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (14.7 days).

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Average UV index in July
Serena, IL

Average UV index in July - Serena, IL
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in July
Serena, IL

Average cloud cover in July - Serena, IL
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).

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Average visibility in July
Serena, IL

Average visibility in July - Serena, IL
  • Average visibility in July: 5mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Serena, Illinois, USA

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