Normal weather for Riverdale in September
It's warm in September in Riverdale with an average temperature of 27°C. Temperatures this month range from a low of 22°C to a high of 32°C. At night, you can expect temperatures between 11°C and 18°C.
In September, there is an average of 72 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the South.
Riverdale in September |
New York | ||
|---|---|---|---|
 Average Temperature |
27°C | 27°C | |
 High Temp |
32°C | 31°C | |
| Low Temp |
22°C | 21°C | |
 Total Precipitation |
72 mm | 57 mm | |
| Rainy Days |
10 days | 9 days | |
Start of September
The month of September starts in Riverdale with hot temps, averaging around 31°C during the day and nights around 17°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
Mid September
By mid-September, daytime temps drop to around 27°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
End of September
By the end of September, the average daytime temperature in Riverdale is around 24°C, while nighttime temps are about 12°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Riverdale?
Looking for great weather? September is a good time to be in Riverdale. The temperatures are nice, and there’s not too much rain.
Temperature records for Riverdale in September
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Daily Temperature in September in Riverdale
This chart shows the average daily high and low temperatures in September for Riverdale, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Riverdale
The chart below shows the average daily precipitation in September for Riverdale, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 10 days of precipitation in Riverdale.
Daily UV Index in September in Riverdale
This chart shows the average daily UV index in September in Riverdale, 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.
Temperature in September in Riverdale Over the Years
This chart shows the average temperature in September in Riverdale, measured in degrees Celsius, over the past few years.
Total Precipitation in September in Riverdale Over the Years
This chart shows the average precipitation in September in Riverdale, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in September for Riverdale
Click on any day in September to get detailed info about the usual weather on that day in Riverdale. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Riverdale
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Average Weather in Riverdale by Month
Click on a month below to see detailed weather info for Riverdale. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Riverdale for all months at once
