July weather forecast
Geneseo, IL

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Weather in July

July, like June, in Geneseo, Illinois, is a moderately hot summer month, with an average temperature ranging between min 64.9°F (18.3°C) and max 81.1°F (27.3°C).

Temperature

July is the warmest month, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64.9°F (18.3°C).

Heat index

July's heat index is evaluated at a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The months with the highest humidity are January and July, with an average relative humidity of 84%.

Rainfall

In Geneseo, during July, the rain falls for 13 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 118.8 rainfall days, and 15.04" (382mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in July is 14h and 49min.
On the first day of July, sunrise is at 5:31 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:18 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10h of sunshine.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

In Geneseo, July is the warmest month, with temperatures averaging a high of 81.1°F (27.3°C) and a low of 64.9°F (18.3°C).

What is the average July temperature?

The average high-temperature and low-temperature during July are 81.1°F (27.3°C) and 64.9°F (18.3°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in July is evaluated at 87.8°F (31°C).

What is the most humid month?

January and July, with an average relative humidity of 84%, are most humid months.

What is the average humidity in July?

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

How much does it rain in Geneseo in July?

In Geneseo, in July, during 13 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

When it does not snow?

In Geneseo, Illinois, snow does not fall in May through September.

How many hours of daylight does Geneseo have in July?

In Geneseo, Illinois, the average day length in July is 14h and 49min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:31 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:18 pm CDT.

What month has the most sunshine in Geneseo?

July has the most sunshine of the year in Geneseo, with an average of 10h of sunshine.

How many hours of sunshine does Geneseo have in July?

In Geneseo, the average sunshine duration in July is 10h.

When is the highest UV index in Geneseo?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Geneseo, IL

Average temperature in July - Geneseo, IL
  • Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28°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 (16°F).

Average pressure in July
Geneseo, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Geneseo, IL

Average wind speed in July - Geneseo, IL
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in July
Geneseo, IL

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

The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Geneseo, IL

Average rainfall in July - Geneseo, IL
  • Average rainfall in July: 1.65"

The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and December (0.63").

Average rainfall days in July
Geneseo, IL

Average rainfall days in July - Geneseo, IL
  • Average rainfall days in July: 13 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in July
Geneseo, IL

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Geneseo, IL

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

The month with the highest number of snowfall days is January (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
Geneseo, IL

Average daylight in July / Average sunshine in July - Geneseo, 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: 10h

The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).

Average sunshine days in July
Geneseo, IL

Average sunshine days in July - Geneseo, IL
  • Average sunshine days in July: 15.5 days

The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is June (12 days).

Average UV index in July
Geneseo, IL

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

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

Average cloud cover in July
Geneseo, IL

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in July
Geneseo, IL

Average visibility in July - Geneseo, 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).

Geneseo, Illinois, USA

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