August weather forecast
Alpena, AR

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Weather in August

August, the last month of the summer in Alpena, is another tropical month, with an average temperature varying between 66.4°F (19.1°C) and 88°F (31.1°C).

Temperature

The average high-temperature during August registers at a still hot 88°F (31.1°C), closely corresponding to the preceding month. Against the backdrop of high daytime temperatures, an average low-temperature of 66.4°F (19.1°C) is noted during August nights in Alpena.

Heat index

August's average heat index is estimated at a fiery hot 102.2°F (39°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in August is 74%.

Rainfall

In August, in Alpena, the rain falls for 15.7 days. Throughout August, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 145.5 rainfall days, and 31.89" (810mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Alpena, the average length of the day in August is 13h and 30min.
On the first day of August, sunrise is at 6:20 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:42 pm CDT.

Sunshine

The average sunshine in August is 10.5h.

UV index

May 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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

How hot does it get in August?

In August, in Alpena, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 66.4°F (19.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 102.2°F (39°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

How many days does it rain in August?

In August, the rain falls for 15.7 days. Throughout August, 2.72" (69mm) of precipitation is accumulated.

When it does not snow in Alpena?

June through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 30min.

When are sunrise and sunset in August in Alpena?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:42 pm CDT.

How many hours of sunshine does Alpena have in August?

The average sunshine duration in August is 10.5h.

When is the highest UV index?

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

What is the UV index reading in August?

In Alpena, the average daily maximum UV index in August is 6. A UV Index 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
Alpena, AR

Average temperature in August - Alpena, AR
  • Average high temperature in August: 88°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average pressure in August
Alpena, AR

Average pressure in August - Alpena, AR
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Alpena, AR

Average wind speed in August - Alpena, AR
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in August
Alpena, AR

Average humidity in August - Alpena, AR
  • Average humidity in August: 74%

The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January and October (73%).

Average rainfall in August
Alpena, AR

Average rainfall in August - Alpena, AR
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are January and February (1.97").

Average rainfall days in August
Alpena, AR

Average rainfall days in August - Alpena, AR
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is December (7.5 days).

Average snowfall in August
Alpena, AR

Average snowfall in August - Alpena, AR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Alpena, AR

Average snowfall days in August - Alpena, AR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Alpena, AR

Average daylight in August / Average sunshine in August - Alpena, AR
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

Average sunshine days in August
Alpena, AR

Average sunshine days in August - Alpena, AR
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in August
Alpena, AR

Average UV index in August - Alpena, AR
  • 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 and December (UV index 2).

Average cloud cover in August
Alpena, AR

Average cloud cover in August - Alpena, AR
  • Average cloud cover in August: 28

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in August
Alpena, AR

Average visibility in August - Alpena, AR
  • Average visibility in August: 6mi

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

Alpena, Arkansas, USA

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