July weather forecast
Serena, IL

Weather in July

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

Temperature

The warmest month is July, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64°F (17.8°C).

Heat index

The average heat index in July is evaluated at a tropical 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, wind, clothing, and metabolic differences affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In July, the rain falls for 10.9 days. Throughout July, 0.98" (25mm) of precipitation is accumulated. In Serena, during the entire year, the rain falls for 97.4 days and collects up to 8.07" (205mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July in Serena is 14h and 50min.
On the first day of July in Serena, sunrise is at 5:24 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:13 pm CDT.

Sunshine

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

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Serena?

July is the warmest month, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64°F (17.8°C).

What is the temperature in July in Serena?

The average high-temperature, in July, in Serena, is 81°F (27.2°C), while the average low-temperature is 64°F (17.8°C). in July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated 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 is 85%.

How much does it rain in Serena in July?

In July, the rain falls for 10.9 days. Throughout July, 0.98" (25mm) of precipitation is accumulated.

When it does not snow in Serena?

May through September are months without snowfall in Serena.

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

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

When are sunrise and sunset in July in Serena?

On the first day of July, sunrise is at 5:24 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:13 pm CDT.

How many hours of sunshine does Serena have in July?

The average sunshine duration in July 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.

How high is the UV index in July in Serena?

In July, the average daily maximum UV index in Serena is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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 50min

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 14min).

  • Average sunshine in July: 9h and 36min

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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