The weather in September in McCarthy

It's cool to moderate in September in McCarthy with an average temperature of 15°C. Temperatures this month range from a low of 11°C to a high of 19°C. At night, you can expect temperatures between 4°C and 10°C.

Looking for sun and warm weather? September isn’t a good month to be in McCarthy. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for McCarthy, Idaho. 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 29°C in 2017, McCarthy reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was -4°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 64 mm of precipitation, spread over 9 days. Of the total precipitation, about 0,5 cm falls as snow in September. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in September for McCarthy

Click on any day in September to get detailed info about the usual weather on that day in McCarthy. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  McCarthy New York
Average temperature 15°C 27°C
Max. temperature 19°C 31°C
Min. temperature 4°C -5°C
Total precipitation 64 mm 57 mm
Rainy days 9 days 9 days
Total snowfall 0,5 cm 0 cm
Snowy days 1 day 0 days

Start of September

The month of September starts in McCarthy with mild temps, averaging around 18°C during the day and nights around 9°C.

Mid September

By mid-September, daytime temps drop to around 15°C, with nights around 7°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in McCarthy is around 14°C, while nighttime temps are about 6°C. A shower might pop up, but overall, the weather will be dry and 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 McCarthy for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in McCarthy, Idaho. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in McCarthy

Temperature in September in McCarthy over the years

Precipitation charts

These charts show the average amount of precipitation in September in McCarthy, Idaho. 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 McCarthy

Total precipitation in September in McCarthy over the years

Daily Snowfall in September in McCarthy

Snowfall in September in McCarthy per year

Daily UV index in September in McCarthy

This chart shows the average daily UV index in September in McCarthy, 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 McCarthy

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Average weather in McCarthy by month

Click on a month below to see detailed weather info for McCarthy. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.