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
A mild drop in Molalla's average high-temperature is observed in September, transitioning from a warm 79°F (26.1°C) in August to a pleasant 71.8°F (22.1°C). Molalla, during the nights of September, registers a substantial plunge from the daytime high, averaging at a chilly 48.7°F (9.3°C).Humidity
In Molalla, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Molalla, during the entire year, the rain falls for 175.6 days and collects up to 36.1" (917mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:46 pm. On the last day of September, in Molalla, sunrise is at 7:08 am and sunset at 6:51 pm PDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Molalla is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Molalla in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Molalla have in September?
What is the UV index reading in September?
Average temperature in September
Molalla, OR
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in September: 48.7°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in September
Molalla, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Molalla, OR
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is January (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Molalla, OR
- Average humidity in September: 71%
The months with the highest relative humidity are February and March (85%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Molalla, OR
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is December (5.39").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Molalla, OR
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in September
Molalla, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Molalla, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Molalla, 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: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Molalla, OR
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Molalla, OR
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Molalla, OR
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Molalla, OR
- Average visibility in September: 6mi
The months with the highest visibility are August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
Molalla, Oregon, USA
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