Normal weather for Umatilla in September
It's hot in September in Umatilla with an average temperature of 32°C. Temperatures this month range from a low of 31°C to a high of 33°C. At night, you can expect temperatures between 23°C and 25°C.
In September, there is an average of 162 mm of precipitation, spread over 17 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Umatilla in September |
New York | ||
|---|---|---|---|
 Average Temperature |
32°C | 27°C | |
 High Temp |
33°C | 31°C | |
| Low Temp |
31°C | 21°C | |
 Total Precipitation |
162 mm | 57 mm | |
| Rainy Days |
17 days | 9 days | |
Start of September
The month of September starts in Umatilla with hot temps, averaging around 33°C during the day and nights around 25°C. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps drop to around 32°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Umatilla is around 32°C, while nighttime temps are about 24°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
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UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Umatilla?
Looking for sun? September isn’t a good month to be in Umatilla. The temperature is nice, but there’s too much chance of rain.
The hurricane season in Umatilla runs from June to November.
Temperature records for Umatilla in September
Check out the climate of Umatilla for all months and discover the best travel time
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Daily Temperature in September in Umatilla
This chart shows the average daily high and low temperatures in September for Umatilla, 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 Umatilla
The chart below shows the average daily precipitation in September for Umatilla, 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 17 days of precipitation in Umatilla.
Daily UV Index in September in Umatilla
This chart shows the average daily UV index in September in Umatilla, 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 Umatilla Over the Years
This chart shows the average temperature in September in Umatilla, measured in degrees Celsius, over the past few years.
Total Precipitation in September in Umatilla Over the Years
This chart shows the average precipitation in September in Umatilla, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in September for Umatilla
Click on any day in September to get detailed info about the usual weather on that day in Umatilla. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Umatilla
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Average Weather in Umatilla by Month
Click on a month below to see detailed weather info for Umatilla. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
