Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 69.8°F (21°C). Christmas Valley's September nights bring a significant temperature shift, averaging at a chilly 45.9°F (7.7°C).Humidity
In Christmas Valley, the average relative humidity in September is 53%.Rainfall
In September, the rain falls for 5.4 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 91.4 rainfall days, and 15.67" (398mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.7 snowfall days, it receives 0.75" (19mm) of snow. In Christmas Valley, during the entire year, snow falls for 95 days and aggregates up to 73.15" (1858mm) of snow.Daylight
In Christmas Valley, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:27 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm PDT.
Sunshine
In September, the average sunshine is 11h.UV index
In Christmas Valley, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Christmas Valley have in September?
How high is the UV index in September in Christmas Valley?
Average temperature in September
Christmas Valley, OR
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in September: 45.9°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure in September
Christmas Valley, OR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in September
Christmas Valley, OR
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Christmas Valley, OR
- Average humidity in September: 53%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (45%).
Average rainfall in September
Christmas Valley, OR
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is February (2.13").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
Christmas Valley, OR
- Average rainfall days in September: 5.4 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in September
Christmas Valley, OR
- Average snowfall in September: 0.75"
The month with the highest snowfall is February (16.06").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Christmas Valley, OR
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is December (16.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Christmas Valley, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Christmas Valley, OR
- Average sunshine days in September: 22 days
The month with the most sunshine days is July (25.1 days).
The month with the least sunshine days is March (11.1 days).
Average UV index in September
Christmas Valley, OR
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Christmas Valley, OR
- Average cloud cover in September: 17
The months with the most cloud cover are February and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Christmas Valley, OR
- Average visibility in September: 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).
Christmas Valley, Oregon, USA
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