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 onset of September brings with it an average high-temperature of a warm 85.1°F (29.5°C), showing a negligible variation from the month before. Despite the stark contrast with daytime temperatures, Amador City's September nights average at a moderate 57°F (13.9°C).Heat index
The heat index value during September is computed to be 84.2°F (29°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The average relative humidity in September is 42%.Rainfall
In Amador City, during September, the rain falls for 3 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 81.8 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
In Amador City, California, snow does not fall in January, April through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of September, in Amador City, sunrise is at 6:58 am and sunset at 6:47 pm PDT.
Sunshine
In Amador City, the average sunshine in September is 11.3h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is 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?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Amador City, CA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (37.9°F).
Average pressure in September
Amador City, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Amador City, CA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Amador City, CA
- Average humidity in September: 42%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).
Average rainfall in September
Amador City, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (4.69").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Amador City, CA
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is August (1.5 days).
Average snowfall in September
Amador City, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are January, April, May, June, July, August, September and October (0").
Average snowfall days in September
Amador City, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Amador City, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Amador City, CA
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (15.1 days).
Average UV index in September
Amador City, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Amador City, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Amador City, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Amador City, California, USA
Weather forecast for your location
2. Allow the app to use your location