Neptune, OH
Unincorporated community in Mercer County, Ohio
Neptune is a small unincorporated community in Mercer County, Ohio. It is 5.0 miles SW of Celina, the nearest town. Its ZIP code is 45862.
Neptune at a glance
- State
- Ohio
- County
- Mercer County
- ZIP code
- 45862
- Nearest town
- Celina (5.0 mi)
- Time zone
- America/New York
- Coordinates
- 40.6031, -84.4917
Weather in Neptune now
Loading the National Weather Service forecast…
Neptune weather by the hour
Neptune weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Neptune.
This week in Neptune
Sunrise, sunset and moon in Neptune
What is the weather usually like in Neptune?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 84°F average high
- Januarycoldest month · 19°F average low
- 39.8 inprecipitation per year · 1,010 mm
- 28.8 insnowfall per year · 73 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Neptune: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CELINA 3 NE, OH US (USC00331390), adjusted for the elevation of Neptune.
Neptune weather month by month
Sunrise and sunset in Neptune through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:57 AM | 5:37 PM | 9 h 39 min |
| February | 7:29 AM | 6:14 PM | 10 h 44 min |
| March | 7:47 AM | 7:45 PM | 11 h 58 min |
| April | 6:57 AM | 8:18 PM | 13 h 21 min |
| May | 6:19 AM | 8:49 PM | 14 h 30 min |
| June | 6:04 AM | 9:12 PM | 15 h 7 min |
| July | 6:18 AM | 9:09 PM | 14 h 50 min |
| August | 6:47 AM | 8:37 PM | 13 h 50 min |
| September | 7:17 AM | 7:48 PM | 12 h 30 min |
| October | 7:47 AM | 6:59 PM | 11 h 11 min |
| November | 7:23 AM | 5:21 PM | 9 h 58 min |
| December | 7:53 AM | 5:13 PM | 9 h 20 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Neptune?
Neptune has a hot-summer humid continental climate. The warmest month is July, with an average high of 84°F (29°C), and the coldest is January, with average lows of 19°F (-7°C).
It gets about 39.8 inches (1,010 mm) of precipitation a year. The wettest month is July and the driest is February. Snow is common: about 29 inches fall in an average year.
The best time to visit Neptune is May–June and August–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 Neptune
The closest live webcam is Mercer: US-33 at US-127, D01-022, 5.7 miles NW of Neptune.
Webcams: Windy.com. Distances in a straight line from Neptune.
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Map of Neptune, OH
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Neptune Street View
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Open in Google Maps ›Towns near Neptune
Other communities near Neptune
- Idlewild3.6 mi S
- Sandy Beach4.4 mi SE
- Sleepy Hollow Acres4.9 mi SW
- Earley5.2 mi W
- Villa Nova5.3 mi SE
- Club Island6.6 mi S
- Duckfoot Landing6.6 mi S
- Bass Landing6.6 mi S
- Bulkhead6.8 mi SE
- Doss Landing6.9 mi S
- South Shore Acres6.9 mi S
- The Maples7.0 mi S
- Southmoor Shores7.0 mi SE
- Tama7.0 mi W
- Woodhaven Mobile Home Park7.1 mi S
Questions about Neptune
Where is Neptune, OH?
Neptune is an unincorporated community in Mercer County, Ohio, 5.0 miles SW of Celina.
What county is Neptune in?
Neptune is in Mercer County, Ohio.
What is the ZIP code of Neptune, OH?
The ZIP code for Neptune is 45862.
What is the nearest town to Neptune?
Celina, 5.0 miles away.
Are there webcams near Neptune?
Yes. The closest is Mercer: US-33 at US-127, D01-022, 5.7 miles away.
What is the hottest month in Neptune?
July, with an average high of 84°F (29°C).
What is the coldest month in Neptune?
January, with an average low of 19°F (-7°C).
How much does it rain in Neptune?
About 39.8 inches (1,010 mm) a year; the wettest month is July.
Does it snow in Neptune?
Yes, about 29 inches of snow fall in an average year.
When is the best time to visit Neptune?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Neptune have?
Hot-summer humid continental (Köppen Dfa).
Last updated: