August weather forecastHarper, OR
August
Weather in August
The last month of the summer, August, is another tropical month in Harper, Oregon, with an average temperature varying between 63.5°F (17.5°C) and 89.4°F (31.9°C).Temperature
The ushering in of August brings an average high-temperature of a still tropical 89.4°F (31.9°C), closely mirroring the 91°F (32.8°C) of July. Despite a significant daily temperature range, Harper's temperature falls to a steady low-temperature average of 63.5°F (17.5°C) in August.Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 28%.Rainfall
The months with the least rainfall are July and August Rain falls for 2.3 days and accumulates 0.08" (2mm) of rain.Snowfall
In Harper, snow does not fall in May through October.Daylight
In Harper, the average length of the day in August is 13h and 56min.On the first day of the month, sunrise is at 6:39 am and sunset at 9:13 pm. On the last day of August, sunrise is at 7:13 am and sunset at 8:27 pm MDT.
Sunshine
In August, the average sunshine is 11.2h.UV index
In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 during August translates into the following guidance:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harper, OR
- Average high temperature in August: 89.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in August: 63.5°F
The month with the highest average low temperature is August (63.5°F).
The coldest months (with the lowest average low temperature) are January and December (22.1°F).
Average pressure in August
Harper, OR
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in August
Harper, OR
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in August
Harper, OR
- Average humidity in August: 28%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (28%).
Average rainfall in August
Harper, OR
- Average rainfall in August: 0.08"
The wettest months (with the highest rainfall) are March and May (0.39").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in August
Harper, OR
- Average rainfall days in August: 2.3 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in August
Harper, OR
- Average snowfall in August: 0"
The month with the highest snowfall is December (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Harper, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Harper, OR
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in August
Harper, OR
- Average sunshine days in August: 25.9 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (20.1 days).
Average UV index in August
Harper, OR
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Harper, OR
- Average cloud cover in August: 8
The months with the most cloud cover are January and December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in August
Harper, OR
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
