Coster, IA
Unincorporated community in Butler County, Iowa
Coster is a small unincorporated community in Butler County, Iowa. It is 7.0 miles NW of Allison, the nearest town. Its ZIP code is 50670.
Coster at a glance
- State
- Iowa
- County
- Butler County
- ZIP code
- 50670
- Nearest town
- Allison (7.0 mi)
- Time zone
- America/Chicago
- Coordinates
- 42.6717, -92.7114
Weather in Coster now
Loading the National Weather Service forecast…
Coster weather by the hour
Coster weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Coster.
This week in Coster
Sunrise, sunset and moon in Coster
What is the weather usually like in Coster?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 83°F average high
- Januarycoldest month · 8°F average low
- 35.4 inprecipitation per year · 899 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Coster: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ALLISON, IA US (USC00130157), adjusted for the elevation of Coster.
Coster weather month by month
Sunrise and sunset in Coster through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:36 AM | 5:04 PM | 9 h 27 min |
| February | 7:05 AM | 5:44 PM | 10 h 38 min |
| March | 7:20 AM | 7:18 PM | 11 h 57 min |
| April | 6:27 AM | 7:54 PM | 13 h 26 min |
| May | 5:46 AM | 8:27 PM | 14 h 41 min |
| June | 5:30 AM | 8:52 PM | 15 h 21 min |
| July | 5:45 AM | 8:48 PM | 15 h 3 min |
| August | 6:16 AM | 8:14 PM | 13 h 57 min |
| September | 6:49 AM | 7:22 PM | 12 h 32 min |
| October | 7:22 AM | 6:30 PM | 11 h 7 min |
| November | 7:01 AM | 4:49 PM | 9 h 48 min |
| December | 7:32 AM | 4:39 PM | 9 h 7 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Coster?
Coster has a hot-summer humid continental climate. The warmest month is July, with an average high of 83°F (28°C), and the coldest is January, with average lows of 8°F (-14°C).
It gets about 35.4 inches (899 mm) of precipitation a year. The wettest month is June and the driest is January.
The best time to visit Coster is June to September. 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 Coster
The closest live webcam is Janesville: WWD - US 218 @ Barrick Rd in - W (44), 13.2 miles E of Coster.
Webcams: Windy.com. Distances in a straight line from Coster.
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Map of Coster, IA
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Coster Street View
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Other communities near Coster
Questions about Coster
Where is Coster, IA?
Coster is an unincorporated community in Butler County, Iowa, 7.0 miles NW of Allison.
What county is Coster in?
Coster is in Butler County, Iowa.
What is the ZIP code of Coster, IA?
The ZIP code for Coster is 50670.
What is the nearest town to Coster?
Allison, 7.0 miles away.
Are there webcams near Coster?
Yes. The closest is Janesville: WWD - US 218 @ Barrick Rd in - W (44), 13.2 miles away.
What is the hottest month in Coster?
July, with an average high of 83°F (28°C).
What is the coldest month in Coster?
January, with an average low of 8°F (-14°C).
How much does it rain in Coster?
About 35.4 inches (899 mm) a year; the wettest month is June.
Does it snow in Coster?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Coster?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Coster have?
Hot-summer humid continental (Köppen Dfa).
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