July weather forecast
Bismarck, IL

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Weather in July

July, like June, in Bismarck, Illinois, is another warm summer month, with an average temperature fluctuating between 64.9°F (18.3°C) and 81.3°F (27.4°C).

Temperature

In Bismarck, July is the month with the highest recorded average temperatures, measuring a high of 81.3°F (27.4°C) and a low of 64.9°F (18.3°C).

Heat index

For most parts of July, the heat index is evaluated at a hot 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

With an average relative humidity of 84%, July is the most humid month.

Rainfall

In Bismarck, in July, during 17.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Bismarck, during the entire year, the rain falls for 151.8 days and collects up to 25.63" (651mm) of precipitation.

Snowfall

In Bismarck, snow does not fall in May through October.

Daylight

The average length of the day in July is 14h and 43min.
On the first day of July, sunrise is at 5:24 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:05 pm CDT.

Sunshine

The average sunshine in July is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. 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. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

July, noted for its average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64.9°F (18.3°C), is considered the warmest month.

What are July temperatures?

During July, Bismarck experiences an average high-temperature of 81.3°F (27.4°C) and a low-temperature of 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the most humid month?

With an average relative humidity of 84%, July is the most humid month.

What is the average humidity in July?

The average relative humidity in July is 84%.

How many days does it rain in July?

In July, the rain falls for 17.8 days. Throughout July, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Bismarck?

May through October are months without snowfall.

How many hours of daylight does Bismarck have in July?

In July, the average day length is 14h and 43min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:24 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:05 pm CDT.

How long on average sun shines in July?

The average sunshine duration in July is 9.9h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Bismarck, IL

Average temperature in July - Bismarck, IL
  • Average high temperature in July: 81.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°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 (20.5°F).

Average pressure in July
Bismarck, IL

Average pressure in July - Bismarck, IL
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Bismarck, IL

Average wind speed in July - Bismarck, IL
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in July
Bismarck, IL

Average humidity in July - Bismarck, 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 (72%).

Average rainfall in July
Bismarck, IL

Average rainfall in July - Bismarck, IL
  • Average rainfall in July: 2.44"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days in July
Bismarck, IL

Average rainfall days in July - Bismarck, IL
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in July
Bismarck, IL

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Bismarck, IL

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

The month with the highest number of snowfall days is January (10.6 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
Bismarck, IL

Average daylight in July / Average sunshine in July - Bismarck, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 9h and 5min

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 0min).

Average sunshine days in July
Bismarck, IL

Average sunshine days in July - Bismarck, IL
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in July
Bismarck, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Bismarck, IL

Average cloud cover in July - Bismarck, IL
  • Average cloud cover in July: 33

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in July
Bismarck, IL

Average visibility in July - Bismarck, 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).

Bismarck, Illinois, USA

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