Madison
Wisconsin, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Madison, WI

A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening
A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening
August, the last month of the summer, in Madison, is also a moderately hot month, with average temperature fluctuating between 77.4°F (25.2°C) and 59.5°F (15.3°C).

Temperature

In Madison, the average high-temperature is relatively the same as in July - a still warm 77.4°F (25.2°C). The average low-temperature, in Madison, is 59.5°F (15.3°C).

Humidity

In August, the average relative humidity in Madison is 82%.

Rainfall

In Madison, Wisconsin, during August, the rain falls for 5.4 days and regularly aggregates up to 0.31" (8mm) of precipitation. Throughout the year, there are 50.2 rainfall days, and 4.76" (121mm) of precipitation is accumulated.

Snowfall

In Madison snow does not fall in May through September.

Daylight

In August, the average length of the day in Madison, Wisconsin, is 13.9h.

Sunshine

The average sunshine in Madison is 9.7h.

UV index

In Madison, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in Madison?

In Madison, in August, the average high-temperature is 77.4°F (25.2°C), and the average low-temperature is 59.5°F (15.3°C).

What is the average humidity in August in Madison?

In August, the average relative humidity in Madison is 82%.

How much does it rain in Madison in August?

In August, in Madison, Wisconsin, the rain falls for 5.4 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in Madison?

May through September are months without snowfall.

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

In Madison, Wisconsin, the average length of the day in August is 13.9h.

How long on average sun shines in August in Madison?

In Madison, the average sunshine in August is 9.7h.

How high is the UV index in August in Madison?

The average daily maximum UV index in August in Madison is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Madison, WI
  • Average high temperature in August: 25.2°C

The warmest month (with the highest average high temperature) is July (25.9°C).
The month with the lowest average high temperature is January (-4.5°C).

  • Average low temperature in August: 15.3°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-11.8°C).

Average humidity in August - Madison, WI
  • Average humidity in August: 82%

Months with the highest relative humidity are January and February (88%).
Months with the lowest relative humidity are April and October (77%).

Average rainfall in August - Madison, WI
  • Average rainfall in August: 8mm

The wettest month (with the highest rainfall) is July (16mm).
Driest months (with the lowest rainfall) are January, March, November and December (6mm).

Average rainfall days in August - Madison, WI
  • Average rainfall days in August: 5.4 days

The month with the highest number of rainy days is June (6.7 days).
The month with the lowest number of rainy days is January (1.1 days).

Average snowfall in August - Madison, WI
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (24mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

Average snowfall days in August - Madison, WI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.6 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Madison, WI
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in August: 9.7h

The month with most sunshine is July (Average sunshine: 9.8h).
The month with least sunshine is January (Average sunshine: 3.3h).

Average UV index in August - Madison, WI
  • Average UV index in August: 5

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).