Weathermondo.com
United StatesThe weather in September in Mammoth Mountain
It's warm in September in Mammoth Mountain with an average temperature of 26°C. Temperatures this month range from a low of 21°C to a high of 31°C. At night, you can expect temperatures between 1°C and 9°C.
Looking for great weather? September is a good time to be in Mammoth Mountain. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Mammoth Mountain, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 42°C in 2022, Mammoth Mountain reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -7°C to a highest value of 18°C.
Precipitation and snowfall
In September, there is an average of 4,3 mm of precipitation, spread over 1 day. Of the total precipitation, about 0,3 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the Southwest.
Daily weather in September for Mammoth Mountain
Click on any day in September to get detailed info about the usual weather on that day in Mammoth Mountain. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Mammoth Mountain | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 1°C | -5°C |
| Total precipitation | 4,3 mm | 57 mm |
| Rainy days | 1 day | 9 days |
| Total snowfall | 0,3 cm | 0 cm |
| Snowy days | 1 day | 0 days |
Start of September
The month of September starts in Mammoth Mountain with hot temps, averaging around 29°C during the day and nights around 8°C.
Mid September
By mid-September, daytime temps drop to around 25°C, with nights around 5°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Mammoth Mountain is around 24°C, while nighttime temps are about 3°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Mammoth Mountain for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Mammoth Mountain, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Mammoth Mountain
Temperature in September in Mammoth Mountain over the years
Precipitation charts
These charts show the average amount of precipitation in September in Mammoth Mountain, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Mammoth Mountain
Total precipitation in September in Mammoth Mountain over the years
Daily Snowfall in September in Mammoth Mountain
Snowfall in September in Mammoth Mountain per year
Daily UV index in September in Mammoth Mountain
This chart shows the average daily UV index in September in Mammoth Mountain, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Mammoth Mountain
Have you been to Mammoth Mountain in September?
Share your weather experience in September in Mammoth Mountain.
Average weather in Mammoth Mountain by month
Click on a month below to see detailed weather info for Mammoth Mountain. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.