August weather forecast
Jefferson, OK

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Weather in August

The last month of the summer, August, is another tropical month in Jefferson, Oklahoma, with an average temperature ranging between min 72.9°F (22.7°C) and max 93.4°F (34.1°C).

Temperature

The start of August marks an average high-temperature of a tropical 93.4°F (34.1°C), hardly distinguishable from the conditions in July. In Jefferson, an average temperature of 72.9°F (22.7°C) is noted during August nights.

Heat index

The heat index value during August is calculated to be a blisteringly hot 105.8°F (41°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Know that the heat index computations account for shaded terrains and slight winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 56%.

Rainfall

In Jefferson, in August, during 12.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 115 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Jefferson, the average length of the day in August is 13h and 31min.
On the first day of the month, sunrise is at 6:37 am and sunset at 8:37 pm. On the last day of August, sunrise is at 7:02 am and sunset at 8:00 pm CDT.

Sunshine

In August, the average sunshine is 11h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 7 suggests this advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, the average high-temperature and low-temperature are 93.4°F (34.1°C) and 72.9°F (22.7°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 105.8°F (41°C).

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 56%.

What is the average humidity in August in Jefferson?

The average relative humidity in August is 56%.

How many days does it rain in August?

In August, in Jefferson, the rain falls for 12.6 days. Throughout August, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

In Jefferson, snow does not fall in May through September.

What is the average length of the day in August?

In Jefferson, the average day length in August is 13h and 31min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:37 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:00 pm CDT.

How many hours of sunshine does Jefferson have in August?

In Jefferson, Oklahoma, the average sunshine duration in August is 11h.

When is the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in August?

In Jefferson, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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
Jefferson, OK

Average temperature in August - Jefferson, OK
  • Average high temperature in August: 93.4°F

The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (47.1°F).

  • Average low temperature in August: 72.9°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in August
Jefferson, OK

Average pressure in August - Jefferson, OK
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in August
Jefferson, OK

Average wind speed in August - Jefferson, OK
  • Average wind speed in August: 8.5mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in August
Jefferson, OK

Average humidity in August - Jefferson, OK
  • Average humidity in August: 56%

The month with the highest relative humidity is May (69%).
The months with the lowest relative humidity are July and August (56%).

Average rainfall in August
Jefferson, OK

Average rainfall in August - Jefferson, OK
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in August
Jefferson, OK

Average rainfall days in August - Jefferson, OK
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in August
Jefferson, OK

Average snowfall in August - Jefferson, OK
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Jefferson, OK

Average snowfall days in August - Jefferson, OK
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.3 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
Jefferson, OK

Average daylight in August / Average sunshine in August - Jefferson, OK
  • 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: 11h and 0min

The months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

Average sunshine days in August
Jefferson, OK

Average sunshine days in August - Jefferson, OK
  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in August
Jefferson, OK

Average UV index in August - Jefferson, OK
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Jefferson, OK

Average cloud cover in August - Jefferson, OK
  • Average cloud cover in August: 19

The months with the most cloud cover are March and April (Cloud cover 35).
The months with the least cloud cover are June and August (Cloud cover 19).

Average visibility in August
Jefferson, OK

Average visibility in August - Jefferson, OK
  • 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).

Jefferson, Oklahoma, USA

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