O'Leary, IA
Unincorporated community in Plymouth County, Iowa
O'Leary is a small unincorporated community in Plymouth County, Iowa. It is 7.8 miles NW of Le Mars, the nearest town. Its ZIP code is 51045.
O'Leary at a glance
- State
- Iowa
- County
- Plymouth County
- ZIP code
- 51045
- Nearest town
- Le Mars (7.8 mi)
- Time zone
- America/Chicago
- Coordinates
- 42.7067, -96.0583
Weather in O'Leary now
Loading the National Weather Service forecast…
O'Leary weather by the hour
O'Leary weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of O'Leary.
This week in O'Leary
Sunrise, sunset and moon in O'Leary
What is the weather usually like in O'Leary?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 7°F average low
- 30.0 inprecipitation per year · 762 mm
- 30.9 insnowfall per year · 78 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit O'Leary: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station LE MARS, IA US (USC00134735), adjusted for the elevation of O'Leary.
O'Leary weather month by month
Sunrise and sunset in O'Leary through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:49 AM | 5:17 PM | 9 h 27 min |
| February | 7:19 AM | 5:57 PM | 10 h 38 min |
| March | 7:34 AM | 7:31 PM | 11 h 57 min |
| April | 6:40 AM | 8:07 PM | 13 h 27 min |
| May | 5:59 AM | 8:41 PM | 14 h 41 min |
| June | 5:43 AM | 9:05 PM | 15 h 21 min |
| July | 5:58 AM | 9:02 PM | 15 h 3 min |
| August | 6:29 AM | 8:27 PM | 13 h 58 min |
| September | 7:02 AM | 7:35 PM | 12 h 32 min |
| October | 7:36 AM | 6:43 PM | 11 h 7 min |
| November | 7:14 AM | 5:03 PM | 9 h 48 min |
| December | 7:46 AM | 4:52 PM | 9 h 6 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in O'Leary?
O'Leary has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 7°F (-14°C).
It gets about 30.0 inches (762 mm) of precipitation a year. The wettest month is June and the driest is January. Snow is common: about 31 inches fall in an average year.
The best time to visit O'Leary 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 O'Leary
The closest live webcam is Moville: 3BC - US 20 @ IA 140 (IWZ 3365), 15.5 miles S of O'Leary.
Webcams: Windy.com. Distances in a straight line from O'Leary.
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Map of O'Leary, IA
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O'Leary Street View
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Questions about O'Leary
Where is O'Leary, IA?
O'Leary is an unincorporated community in Plymouth County, Iowa, 7.8 miles NW of Le Mars.
What county is O'Leary in?
O'Leary is in Plymouth County, Iowa.
What is the ZIP code of O'Leary, IA?
The ZIP code for O'Leary is 51045.
What is the nearest town to O'Leary?
Le Mars, 7.8 miles away.
Are there webcams near O'Leary?
Yes. The closest is Moville: 3BC - US 20 @ IA 140 (IWZ 3365), 15.5 miles away.
What is the hottest month in O'Leary?
July, with an average high of 85°F (29°C).
What is the coldest month in O'Leary?
January, with an average low of 7°F (-14°C).
How much does it rain in O'Leary?
About 30.0 inches (762 mm) a year; the wettest month is June.
Does it snow in O'Leary?
Yes, about 31 inches of snow fall in an average year.
When is the best time to visit O'Leary?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does O'Leary have?
Hot-summer humid continental (Köppen Dfa).
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