September weather forecastGervais, OR
September
Weather in September
The first month of the autumn, September, is still a warm month in Gervais, Oregon, with an average temperature fluctuating between 73.9°F (23.3°C) and 50.9°F (10.5°C).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from 81.7°F (27.6°C) in August to a still moderately hot 73.9°F (23.3°C). Despite substantial daily fluctuations, the average low-temperature in Gervais is a fresh 50.9°F (10.5°C) during September.Humidity
The average relative humidity in September in Gervais is 70%.Rainfall
In Gervais, in September, during 10.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Gervais, during the entire year, the rain falls for 169.2 days and collects up to 28.35" (720mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Gervais, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:34 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:53 pm PDT.
Sunshine
In Gervais, the average sunshine in September is 9.5h.UV index
In Gervais, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gervais, OR
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in September
Gervais, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Gervais, OR
- Average wind speed in September: 4.2mph
The windiest months (with the highest average wind speed) are January and March (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Gervais, OR
- Average humidity in September: 70%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Gervais, OR
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Gervais, OR
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is March (19.9 days).
The months with the least rainy days are July and August (4.3 days).
Average snowfall in September
Gervais, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Gervais, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gervais, 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: 9h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Gervais, OR
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Gervais, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Gervais, OR
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Gervais, OR
- Average visibility in September: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
