Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Hummelstown Weather in September
Hummelstown in September averages 25°C (77°F) during the day and 14°C (57°F) at night. This is the wettest month of the year.
Rainfall in Hummelstown in September
It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. Records from the past 30 years suggest around 9 days of rain, with 140 mm (5.5 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Hummelstown in September
In September, Hummelstown gets high temperatures, with highs of 25°C (77°F). Nights cool to around 14°C (57°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Hummelstown in September
With approximately 226 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Hummelstown.
Hummelstown Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
140 mm (5.5 in)
Rainy days
9 days
Humidity
73% *
Sunshine
226 hours *
Percentage Sunshine
61% *
* Data from: Harrisburg, the United States of America (15 KM, 9 Miles).
Hummelstown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hummelstown - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Hummelstown 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. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Hummelstown in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Hummelstown 3-Day Forecast
More climate data for Hummelstown
Temperature Rainfall Sunshine Humidity
See the full Hummelstown climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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