August weather forecast
Belvidere, IL

Share

Weather in August

August, the last month of the summer in Belvidere, is another warm month, with an average temperature ranging between min 60.4°F (15.8°C) and max 78.1°F (25.6°C).

Temperature

August's average high-temperature is a still warm 78.1°F (25.6°C), maintaining a close comparison with July's 79.9°F (26.6°C). Throughout August, Belvidere's nights cool down to an average of 60.4°F (15.8°C).

Humidity

In Belvidere, the average relative humidity in August is 84%.

Rainfall

In August, in Belvidere, Illinois, the rain falls for 16.3 days. Throughout August, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 154 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day in Belvidere, Illinois, is 13h and 50min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:14 pm. On the last day of August, in Belvidere, sunrise is at 6:20 am and sunset at 7:30 pm CDT.

Sunshine

The months with the most sunshine in Belvidere are July and August, with an average of 9.7h of sunshine.

UV index

In Belvidere, Illinois, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, an average UV index of 5 transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
[Resources]

Frequently asked questions

What are August temperatures in Belvidere?

In Belvidere, in August, the average high-temperature is 78.1°F (25.6°C), and the average low-temperature is 60.4°F (15.8°C).

What is the average humidity in August in Belvidere?

The average relative humidity in August in Belvidere is 84%.

How much does it rain in Belvidere in August?

In Belvidere, during August, the rain falls for 16.3 days and regularly aggregates up to 2.8" (71mm) of precipitation.

When it does not snow in Belvidere?

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

What is the average length of the day in August in Belvidere?

The average day length in August is 13h and 50min.

When is the sunrise / sunset in August in Belvidere?

In August, on the first day of the month, sunrise is at 5:49 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:30 pm CDT.

What are the months with the most sunshine in Belvidere?

The months with the most sunshine are July and August, with an average of 9.7h of sunshine.

How long on average sun shines in August in Belvidere?

In Belvidere, the average sunshine duration in August is 9.7h.

What is the UV index intensity in August in Belvidere?

In August, the average daily maximum UV index in Belvidere is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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 August
Belvidere, IL

Average temperature in August - Belvidere, IL
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

[Resources]

Average pressure in August
Belvidere, IL

Average pressure in August - Belvidere, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in August
Belvidere, IL

Average wind speed in August - Belvidere, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

[Resources]

Average humidity in August
Belvidere, IL

Average humidity in August - Belvidere, IL
  • Average humidity in August: 84%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).

[Resources]

Average rainfall in August
Belvidere, IL

Average rainfall in August - Belvidere, IL
  • Average rainfall in August: 2.8"

The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is February (1.46").

[Resources]

Average rainfall days in August
Belvidere, IL

Average rainfall days in August - Belvidere, IL
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (5.6 days).

[Resources]

Average snowfall in August
Belvidere, IL

Average snowfall in August - Belvidere, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5.35").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
Belvidere, IL

Average snowfall days in August - Belvidere, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Belvidere, IL

Average daylight in August / Average sunshine in August - Belvidere, IL
  • Average daylight in August: 13h and 5min

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

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in August
Belvidere, IL

Average sunshine days in August - Belvidere, IL
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.2 days).

[Resources]

Average UV index in August
Belvidere, IL

Average UV index in August - Belvidere, IL
  • Average UV index in August: 5

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

[Resources]

Average cloud cover in August
Belvidere, IL

Average cloud cover in August - Belvidere, IL
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 34).

[Resources]

Average visibility in August
Belvidere, IL

Average visibility in August - Belvidere, IL
  • Average visibility in August: 5mi

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

[Resources]

Belvidere, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location