August weather forecast
Hammond, IL

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Weather in August

August, the last month of the summer in Hammond, is another warm month, with an average temperature fluctuating between 81°F (27.2°C) and 63.7°F (17.6°C).

Temperature

Hammond indicates an average high-temperature of a still moderately hot 81°F (27.2°C) in August, showing minor variation from July's 82°F (27.8°C). Hammond's temperature in August lowers to a consistent average of 63.7°F (17.6°C) during the nights.

Heat index

The average heat index in August is calculated to be a tropical 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Note that heat index values are valued for light wind and location in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

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

Rainfall

In August, the rain falls for 14.3 days. Throughout August, 2.01" (51mm) of precipitation is accumulated. In Hammond, during the entire year, the rain falls for 143.6 days and collects up to 21.57" (548mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 41min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:26 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

June through August, 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: An average maximum UV index of 6 in August leads to these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What is the temperature in August in Hammond?

In Hammond, in August, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 82%.

How many days does it rain in August?

In Hammond, Illinois, in August, it is raining for 14.3 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Hammond?

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

How many hours of daylight does Hammond have in August?

In August, the average day length is 13h and 41min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:54 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:26 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.8h.

When is the highest UV index in Hammond?

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

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 August
Hammond, IL

Average temperature in August - Hammond, IL
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in August
Hammond, IL

Average pressure in August - Hammond, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Hammond, IL

Average wind speed in August - Hammond, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Hammond, IL

Average humidity in August - Hammond, IL
  • Average humidity in August: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Hammond, IL

Average rainfall in August - Hammond, IL
  • Average rainfall in August: 2.01"

The wettest months (with the highest rainfall) are April and May (2.56").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in August
Hammond, IL

Average rainfall days in August - Hammond, IL
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in August
Hammond, IL

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

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Hammond, IL

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

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Hammond, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Hammond, IL

Average sunshine days in August - Hammond, IL
  • Average sunshine days in August: 12 days

The months with the most sunshine days are October and November (18.1 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in August
Hammond, IL

Average UV index in August - Hammond, IL
  • Average UV index in August: 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 August
Hammond, IL

Average cloud cover in August - Hammond, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).

Average visibility in August
Hammond, IL

Average visibility in August - Hammond, IL
  • Average visibility in August: 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).

Hammond, Illinois, USA

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