August weather forecastSaint John, UT
August
Weather in August
August, the last month of the summer in Saint John, is also a moderately hot month, with an average temperature varying between 61.9°F (16.6°C) and 84.4°F (29.1°C).Temperature
The introduction of August notes a subtle temperature variation to a moderately hot 84.4°F (29.1°C) from July's 86.5°F (30.3°C). Saint John, in the heat of August, registers a significant plunge to a mean of 61.9°F (16.6°C) during the nights.Humidity
In August, the average relative humidity is 35%.Rainfall
In Saint John, in August, during 11.9 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Saint John, Utah, during the entire year, the rain falls for 120.7 days and collects up to 18.39" (467mm) of precipitation.Snowfall
In Saint John, snow does not fall in June through August.Daylight
In August, the average length of the day is 13h and 43min.On the first day of the month, sunrise is at 6:28 am and sunset at 8:44 pm. On the last day of August, sunrise is at 6:57 am and sunset at 8:02 pm MDT.
Sunshine
August has the most sunshine of the year, with an average of 11.9h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint John, UT
- Average high temperature in August: 84.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Saint John, UT
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Saint John, UT
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).
Average humidity in August
Saint John, UT
- Average humidity in August: 35%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (33%).
Average rainfall in August
Saint John, UT
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is April (2.09").
The driest month (with the least rainfall) is June (0.79").
Average rainfall days in August
Saint John, UT
- Average rainfall days in August: 11.9 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in August
Saint John, UT
- Average snowfall in August: 0"
The months with the highest snowfall are January and December (12.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Saint John, UT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Saint John, UT
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in August
Saint John, UT
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in August
Saint John, UT
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Saint John, UT
- Average cloud cover in August: 12
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in August
Saint John, UT
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
