Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The arrival of October in Sisters signals a shift in temperature, down from an agreeable 69.8°F in September to a moderate 55.8°F. During the month of October, the temperature falls to an average of 38.5°F.Humidity
The average relative humidity in October is 68%.Rainfall
In Sisters, in October, it is raining for 12.7 days, with typically 1.73" of accumulated precipitation. Throughout the year, in Sisters, there are 142.1 rainfall days, and 22.87" of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Sisters. In October, it is snowing for 1.4 days. Throughout October, 0.71" of snow is accumulated. Throughout the year, in Sisters, Oregon, there are 70.7 snowfall days, and 60.04" of snow is accumulated.Daylight
In October, the average length of the day is 10h and 58min.On the first day of October, sunrise is at 7:04 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:57 pm PDT.
Sunshine
In Sisters, the average sunshine in October is 6.5h.UV index
In Sisters, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in October translates into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What are the temperatures in Sisters in October?
What is the average humidity in October in Sisters?
How many days does it rain in October in Sisters?
How many days does it snow in October in Sisters?
How many hours of daylight does Sisters have in October?
What time are sunrise and sunset in October in Sisters?
How many hours of sunshine does Sisters have in October?
What is the UV index intensity in October in Sisters?
Average temperature in October
Sisters, OR
- Average high temperature in October: 55.8°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in October: 38.5°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in October
Sisters, OR
- Average pressure in October: 30.06"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in October
Sisters, OR
- Average wind speed in October: 5.2mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in October
Sisters, OR
- Average humidity in October: 68%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in October
Sisters, OR
- Average rainfall in October: 1.73"
The wettest month (with the highest rainfall) is January (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in October
Sisters, OR
- Average rainfall days in October: 12.7 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (5 days).
Average snowfall in October
Sisters, OR
- Average snowfall in October: 0.71"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Sisters, OR
- Average snowfall days in October: 1.4 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Sisters, OR
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in October
Sisters, OR
- Average sunshine days in October: 15.7 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in October
Sisters, OR
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in October
Sisters, OR
- Average cloud cover in October: 32
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in October
Sisters, OR
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Sisters, Oregon, USA
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