Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Johnson witnesses its peak temperatures during July and August, when the average high-temperature reaches 81.3°F (27.4°C).Heat index
August's heat index is calculated to be 84.2°F (29°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in August in Johnson is 67%.Rainfall
In Johnson, during August, the rain falls for 10.6 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 102 rainfall days, and 19.17" (487mm) of precipitation is accumulated.Snowfall
In Johnson, snow does not fall in June through September.Daylight
In August, the average length of the day is 14h and 4min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:53 pm. On the last day of August, sunrise is at 6:46 am and sunset at 8:04 pm CDT.
Sunshine
In Johnson, Minnesota, the average sunshine in August is 10.3h.UV index
In August, the average daily maximum UV index in Johnson is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Johnson?
What is the average August temperature in Johnson?
What is the average humidity in August in Johnson?
How many days does it rain in August in Johnson?
When it does not snow in Johnson?
What is the average length of the day in August in Johnson?
What time are sunrise and sunset in August in Johnson?
How long on average sun shines in August in Johnson?
How high is the UV index in August in Johnson?
Average temperature in August
Johnson, MN
- Average high temperature in August: 81.3°F
The warmest months (with the highest average high temperature) are July and August (81.3°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in August
Johnson, MN
- Average pressure in August: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Johnson, MN
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in August
Johnson, MN
- Average humidity in August: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in August
Johnson, MN
- Average rainfall in August: 1.73"
The wettest months (with the highest rainfall) are June and July (3.03").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in August
Johnson, MN
- Average rainfall days in August: 10.6 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2 days).
Average snowfall in August
Johnson, MN
- Average snowfall in August: 0"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Johnson, MN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Johnson, MN
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Johnson, MN
- Average sunshine days in August: 17.9 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in August
Johnson, MN
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Johnson, MN
- Average cloud cover in August: 25
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in August
Johnson, MN
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Johnson, Minnesota, USA
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