September weather forecastLonerock, OR
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Lonerock, Oregon, with an average temperature varying between 72.7°F (22.6°C) and 54.1°F (12.3°C).Temperature
As September commences, the average high-temperature shows a reduction, transitioning from a warm 82.2°F (27.9°C) in August to an agreeable 72.7°F (22.6°C). Throughout September nights, Lonerock registers an average low-temperature of 54.1°F (12.3°C).Humidity
In Lonerock, the average relative humidity in September is 47%.Rainfall
In September, the rain falls for 6.6 days. Throughout September, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 131.9 rainfall days, and 13.54" (344mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 31.3 snowfall days, and 18.54" (471mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:22 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:41 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lonerock, OR
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in September
Lonerock, OR
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
Lonerock, OR
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in September
Lonerock, OR
- Average humidity in September: 47%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in September
Lonerock, OR
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in September
Lonerock, OR
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in September
Lonerock, OR
- Average snowfall in September: 0.24"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Lonerock, OR
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Lonerock, OR
- Average daylight in September: 12h and 30min
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 September: 10h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in September
Lonerock, OR
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index in September
Lonerock, OR
- Average UV index in September: 4
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 September
Lonerock, OR
- Average cloud cover in September: 16
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Lonerock, OR
- Average visibility in September: 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).
