July weather forecast
Monmouth, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Monmouth, Illinois, with an average temperature ranging between min 64.9°F (18.3°C) and max 82°F (27.8°C).

Temperature

July is the warmest month, exhibiting average temperatures of 82°F (27.8°C) at the peak and 64.9°F (18.3°C) at the base.

Heat index

July's heat index is computed to be a hot 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The most humid month is July, with an average relative humidity of 84%.

Rainfall

In Monmouth, in July, during 17 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Monmouth, during the entire year, the rain falls for 149.4 days and collects up to 30.16" (766mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Monmouth, the average length of the day in July is 14h and 46min.
On the first day of July, sunrise is at 5:34 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:19 pm CDT.

Sunshine

In July, the average sunshine is 10h.

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 risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the UV index of 6 transforms into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Monmouth?

July, with average temperatures reaching a high of 82°F (27.8°C) and a low of 64.9°F (18.3°C), is the warmest month.

What are July temperatures?

In July, the average high-temperature and low-temperature are 82°F (27.8°C) and 64.9°F (18.3°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 July is computed to be 89.6°F (32°C).

What is the most humid month?

The most humid month is July, with an average relative humidity of 84%.

What is the average humidity in July?

In Monmouth, the average relative humidity in July is 84%.

How many days does it rain in July?

In Monmouth, in July, it is raining for 17 days, with typically 3.03" (77mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Monmouth have in July?

In July, the average day length is 14h and 46min.

When are sunrise and sunset in July?

On the first day of July in Monmouth, sunrise is at 5:34 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:19 pm CDT.

How long on average sun shines in July?

The average sunshine duration in July is 10h.

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

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
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
Monmouth, IL

Average temperature in July - Monmouth, IL
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average pressure in July
Monmouth, IL

Average pressure in July - Monmouth, IL
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in July
Monmouth, IL

Average wind speed in July - Monmouth, IL
  • Average wind speed in July: 6.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in July
Monmouth, IL

Average humidity in July - Monmouth, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Monmouth, IL

Average rainfall in July - Monmouth, IL
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in July
Monmouth, IL

Average rainfall days in July - Monmouth, IL
  • Average rainfall days in July: 17 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in July
Monmouth, IL

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

The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Monmouth, IL

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

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Monmouth, 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 18min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in July
Monmouth, IL

Average sunshine days in July - Monmouth, IL
  • Average sunshine days in July: 9.9 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in July
Monmouth, IL

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

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

Average cloud cover in July
Monmouth, IL

Average cloud cover in July - Monmouth, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in July
Monmouth, IL

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

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

Monmouth, Illinois, USA

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