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
With September's onset, the average high-temperature recedes from August's moderately hot 83.3°F (28.5°C) to a pleasant 73°F (22.8°C). Throughout the month of September, Wasco sees a steady low-temperature average of 53.2°F (11.8°C).Humidity
In September, the average relative humidity is 52%.Rainfall
In Wasco, during September, the rain falls for 3.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Wasco, during the entire year, the rain falls for 50.4 days and collects up to 2.6" (66mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Wasco, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:25 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:44 pm PDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Wasco?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Wasco have in September?
How high is the UV index in September?
Average temperature in September
Wasco, OR
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in September
Wasco, OR
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in September
Wasco, OR
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is June (8.8mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Wasco, OR
- Average humidity in September: 52%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in September
Wasco, OR
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is May (0.47").
The driest months (with the least rainfall) are April, July and November (0.12").
Average rainfall days in September
Wasco, OR
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is May (6.1 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in September
Wasco, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Wasco, 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
Wasco, OR
- Average daylight in September: 12h and 3min
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 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Wasco, OR
- Average sunshine days in September: 25.2 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is February (21.9 days).
Average UV index in September
Wasco, OR
- Average UV index in September: 4
The months with the highest UV index are June and 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
Wasco, OR
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Wasco, OR
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Wasco, Oregon, USA
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