Grain Valley Weather in September
September in Grain Valley typically sees daytime highs of 26°C (79°F) and nighttime lows of 14°C (57°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Grain Valley in September
Records from the past 30 years suggest around 9 days of rain, with 106 mm (4.2 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Grain Valley in September
September in Grain Valley brings typical temperatures with highs around 26°C (79°F) and lows of 14°C (57°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Grain Valley in September
The days are predominantly sunny, with an estimated total of around 238 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.Our weather planner can help you find worldwide destinations with pleasant weather during this period. October typically offers the best weather for Grain Valley.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Grain Valley's climate page.
Grain Valley Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
26°C (79°F)
Chance of Rain
31%
Precipitation
106 mm (4.2 in)
Rainy days
9 days
Humidity
69% *
Sunshine
238 hours *
Percentage Sunshine
63% *
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 →
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What to Wear in Grain Valley in September
Warm but pleasant conditions in Grain Valley in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Grain Valley in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Grain Valley's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grain Valley climate overview or explore weather in the United States of America.
