August weather forecastHarlan, IN
August
Weather in August
The last month of the summer, August, is another warm month in Harlan, Indiana, with an average temperature varying between 79.2°F (26.2°C) and 61.3°F (16.3°C).Temperature
August's climate shows a minor adjustment in average high-temperatures to a still warm 79.2°F (26.2°C) from July's 81.1°F (27.3°C). During August, the nighttime temperature averages of 61.3°F (16.3°C).Humidity
In Harlan, the average relative humidity in August is 82%.Rainfall
In August, in Harlan, Indiana, the rain falls for 13.8 days. Throughout August, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 140.8 rainfall days, and 16.22" (412mm) of precipitation is accumulated.Snowfall
In Harlan, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 46min.On the first day of August in Harlan, Indiana, sunrise is at 6:35 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:13 pm EDT.
Sunshine
In Harlan, the average sunshine in August is 9.6h.UV index
In August, the average daily maximum UV index in Harlan is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the UV index of 5 transforms into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harlan, IN
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in August
Harlan, IN
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Harlan, IN
- Average wind speed in August: 6.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in August
Harlan, IN
- Average humidity in August: 82%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Harlan, IN
- Average rainfall in August: 1.42"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in August
Harlan, IN
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in August
Harlan, IN
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Harlan, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Harlan, IN
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Harlan, IN
- Average sunshine days in August: 13 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in August
Harlan, IN
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Harlan, IN
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in August
Harlan, IN
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
