Keyes Summit, MO
Unincorporated community in St. Louis County, Missouri
Keyes Summit is a small unincorporated community in St. Louis County, Missouri. It is 2.1 miles W of Twin Oaks, the nearest town. Its ZIP code is 63122.
Keyes Summit at a glance
- State
- Missouri
- County
- St. Louis County
- ZIP code
- 63122
- Nearest town
- Twin Oaks (2.1 mi)
- Time zone
- America/Chicago
- Coordinates
- 38.5672, -90.4628
Weather in Keyes Summit now
Loading the National Weather Service forecast…
Keyes Summit weather by the hour
Keyes Summit weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Keyes Summit.
This week in Keyes Summit
Sunrise, sunset and moon in Keyes Summit
What is the weather usually like in Keyes Summit?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 22°F average low
- 42.3 inprecipitation per year · 1,075 mm
- 8.1 insnowfall per year · 21 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Keyes Summit: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ST CHARLES 7 SSW, MO US (USC00237398), adjusted for the elevation of Keyes Summit.
Keyes Summit weather month by month
Sunrise and sunset in Keyes Summit through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:16 AM | 5:06 PM | 9 h 49 min |
| February | 6:50 AM | 5:41 PM | 10 h 50 min |
| March | 7:11 AM | 7:10 PM | 11 h 59 min |
| April | 6:23 AM | 7:39 PM | 13 h 15 min |
| May | 5:48 AM | 8:08 PM | 14 h 19 min |
| June | 5:35 AM | 8:29 PM | 14 h 53 min |
| July | 5:48 AM | 8:27 PM | 14 h 38 min |
| August | 6:14 AM | 7:57 PM | 13 h 42 min |
| September | 6:42 AM | 7:11 PM | 12 h 29 min |
| October | 7:09 AM | 6:25 PM | 11 h 15 min |
| November | 6:42 AM | 4:50 PM | 10 h 7 min |
| December | 7:10 AM | 4:43 PM | 9 h 32 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Keyes Summit?
Keyes Summit has a hot-summer humid continental climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 22°F (-6°C).
It gets about 42.3 inches (1,075 mm) of precipitation a year. The wettest month is May and the driest is February. Snow is common: about 8 inches fall in an average year.
The best time to visit Keyes Summit is May–June and September–October. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Keyes Summit
The closest live webcam is Oakville › South, 8.5 miles SE of Keyes Summit.
Webcams: Windy.com. Distances in a straight line from Keyes Summit.
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Map of Keyes Summit, MO
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Keyes Summit Street View
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Questions about Keyes Summit
Where is Keyes Summit, MO?
Keyes Summit is an unincorporated community in St. Louis County, Missouri, 2.1 miles W of Twin Oaks.
What county is Keyes Summit in?
Keyes Summit is in St. Louis County, Missouri.
What is the ZIP code of Keyes Summit, MO?
The ZIP code for Keyes Summit is 63122.
What is the nearest town to Keyes Summit?
Twin Oaks, 2.1 miles away.
Are there webcams near Keyes Summit?
Yes. The closest is Oakville › South, 8.5 miles away.
What is the hottest month in Keyes Summit?
July, with an average high of 89°F (32°C).
What is the coldest month in Keyes Summit?
January, with an average low of 22°F (-6°C).
How much does it rain in Keyes Summit?
About 42.3 inches (1,075 mm) a year; the wettest month is May.
Does it snow in Keyes Summit?
Yes, about 8 inches of snow fall in an average year.
When is the best time to visit Keyes Summit?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Keyes Summit have?
Hot-summer humid continental (Köppen Dfa).
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