August weather forecast
Saint Croix, IN

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Weather in August

August, the last month of the summer in Saint Croix, is also a moderately hot month, with an average temperature varying between 65.5°F (18.6°C) and 84.7°F (29.3°C).

Temperature

With the advent of August, Saint Croix experiences an average high-temperature of a still moderately hot 84.7°F (29.3°C), mirroring a close resemblance to the previous month. August nights observe an average temperature dip to a refreshing 65.5°F (18.6°C).

Heat index

For August, the heat index is computed to be a sweltering 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 hold particular significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in August is 77%.

Rainfall

In Saint Croix, in August, it is raining for 12.2 days, with typically 1.46" (37mm) of accumulated precipitation. In Saint Croix, during the entire year, the rain falls for 131.3 days and collects up to 18.94" (481mm) of precipitation.

Snowfall

May through October are months without snowfall in Saint Croix.

Daylight

In August, the average length of the day is 13h and 36min.
On the first day of August, sunrise is at 5:49 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:17 pm CDT.

Sunshine

The average sunshine in August is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

Saint Croix in August has an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 65.5°F (18.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 95°F (35°C).

What is the average humidity in August?

The average relative humidity in August is 77%.

How much does it rain in August?

In Saint Croix, in August, during 12.2 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow?

In Saint Croix, snow does not fall in May through October.

What is the average length of the day in August?

In Saint Croix, the average day length in August is 13h and 36min.

What time are sunrise and sunset in August?

On the first day of August in Saint Croix, sunrise is at 5:49 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:17 pm CDT.

How many hours of sunshine does Saint Croix have in August?

The average sunshine duration in August is 9.4h.

What are the months with the highest UV index?

May 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?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Saint Croix, IN

Average temperature in August - Saint Croix, IN
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in August
Saint Croix, IN

Average pressure in August - Saint Croix, IN
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Saint Croix, IN

Average wind speed in August - Saint Croix, IN
  • Average wind speed in August: 5.3mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in August
Saint Croix, IN

Average humidity in August - Saint Croix, IN
  • Average humidity in August: 77%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Saint Croix, IN

Average rainfall in August - Saint Croix, IN
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is April (2.32").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in August
Saint Croix, IN

Average rainfall days in August - Saint Croix, IN
  • Average rainfall days in August: 12.2 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in August
Saint Croix, IN

Average snowfall in August - Saint Croix, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Saint Croix, IN

Average snowfall days in August - Saint Croix, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6 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
Saint Croix, IN

Average daylight in August / Average sunshine in August - Saint Croix, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in August
Saint Croix, IN

Average sunshine days in August - Saint Croix, IN
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in August
Saint Croix, IN

Average UV index in August - Saint Croix, IN
  • Average UV index in August: 6

The months with the highest UV index are May, 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
Saint Croix, IN

Average cloud cover in August - Saint Croix, IN
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Saint Croix, IN

Average visibility in August - Saint Croix, IN
  • Average visibility in August: 6mi

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

Saint Croix, Indiana, USA

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