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 advent of September brings a subtle shift in temperature, with the average high moving from 82.4°F (28°C) in August to a still moderately hot 74.7°F (23.7°C). Canyondam experiences a dramatic descent in temperature during September, with the average nighttime reading settling at a chilly 44.2°F (6.8°C).Humidity
In Canyondam, the average relative humidity in September is 47%.Rainfall
In Canyondam, in September, it is raining for 4.4 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, there are 94 rainfall days, and 31.42" (798mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Canyondam. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. In Canyondam, during the entire year, snow falls for 64.4 days and aggregates up to 126.02" (3201mm) of snow.Daylight
In September, the average length of the day in Canyondam is 12h and 26min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm PDT.
Sunshine
In Canyondam, the average sunshine in September is 11.2h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Canyondam?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Canyondam have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Canyondam, CA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in September: 44.2°F
The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in September
Canyondam, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Canyondam, CA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Canyondam, CA
- Average humidity in September: 47%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is July (41%).
Average rainfall in September
Canyondam, CA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is March (5.51").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in September
Canyondam, CA
- Average rainfall days in September: 4.4 days
The months with the highest number of rainy days are March and April (13.2 days).
The month with the least rainy days is August (2.4 days).
Average snowfall in September
Canyondam, CA
- Average snowfall in September: 0.43"
The month with the highest snowfall is February (27.64").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Canyondam, CA
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (13.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Canyondam, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Canyondam, CA
- Average sunshine days in September: 23.9 days
The month with the most sunshine days is August (26.6 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in September
Canyondam, CA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Canyondam, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Canyondam, CA
- Average visibility in September: 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).
Canyondam, California, USA
Weather forecast for your location
2. Allow the app to use your location