Imperial Weather in September

September in Imperial brings high temperatures, with highs of 24°C (75°F) and nights dropping to 13°C (55°F). Rainfall is on the higher side this month, averaging around 76 mm (3 in), so keep a rain jacket handy.

Rainfall in Imperial in September

This month experiences about 11 days of rain according to historical data, averaging 76 mm (3 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Imperial in September

September tends to be one of the perfect months in Imperial, with 24°C (75°F) in the afternoon and 13°C (55°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Imperial in September

Expect a lot of sunshine this month, with about 197 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Imperial in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

If your ideal day consists of dry skies and pleasant temperatures, May, July, August and September typically offer the best circumstances for Imperial.

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Check the conditions for any month of the year.

• January
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• May
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For a detailed overview over the year and the best time to visit the United States of America, check out our Imperial's climate page.

Imperial Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 37%  

Precipitation 76 mm (3 in)  

Rainy days 11 days  

Humidity 72% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 197 hours *  

Percentage Sunshine 53% *  

* Data from: Pittsburgh, the United States of America (6 KM, 3 Miles).

What to Wear in Imperial in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Imperial in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Imperial's climate page.

More climate data for Imperial

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Imperial climate overview or explore weather in the United States of America.