Ajax, SD
Unincorporated community in Custer County, South Dakota
Ajax is a small unincorporated community in Custer County, South Dakota. It is 3.9 miles S of Hermosa, the nearest town. Its ZIP code is 57703.
Ajax at a glance
- State
- South Dakota
- County
- Custer County
- ZIP code
- 57703
- Nearest town
- Hermosa (3.9 mi)
- Time zone
- America/Denver
- Coordinates
- 43.8975, -103.1814
Weather in Ajax now
Loading the National Weather Service forecast…
Ajax weather by the hour
Ajax weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Ajax.
This week in Ajax
Sunrise, sunset and moon in Ajax
What is the weather usually like in Ajax?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 86°F average high
- Januarycoldest month · 13°F average low
- 17.4 inprecipitation per year · 443 mm
- 48.5 insnowfall per year · 123 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Ajax: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station RAPID CITY RGNL AP, SD US (USW00024090), adjusted for the elevation of Ajax.
Ajax weather month by month
Sunrise and sunset in Ajax through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:21 AM | 4:42 PM | 9 h 20 min |
| February | 6:49 AM | 5:24 PM | 10 h 34 min |
| March | 7:02 AM | 7:00 PM | 11 h 57 min |
| April | 6:07 AM | 7:37 PM | 13 h 30 min |
| May | 5:24 AM | 8:13 PM | 14 h 48 min |
| June | 5:07 AM | 8:38 PM | 15 h 30 min |
| July | 5:22 AM | 8:34 PM | 15 h 11 min |
| August | 5:55 AM | 7:58 PM | 14 h 2 min |
| September | 6:30 AM | 7:04 PM | 12 h 33 min |
| October | 7:06 AM | 6:10 PM | 11 h 4 min |
| November | 6:46 AM | 4:28 PM | 9 h 42 min |
| December | 7:18 AM | 4:17 PM | 8 h 58 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Ajax?
Ajax has a cold semi-arid climate. The warmest month is July, with an average high of 86°F (30°C), and the coldest is January, with average lows of 13°F (-11°C).
It gets about 17.4 inches (443 mm) of precipitation a year. The wettest month is May and the driest is January. Snow is common: about 49 inches fall in an average year.
The best time to visit Ajax 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 Ajax
The closest live webcam is Arrowhead Estates › South-west, 11.3 miles NW of Ajax.
Webcams: Windy.com. Distances in a straight line from Ajax.
Do you know Ajax? Tell us about it
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Map of Ajax, SD
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Ajax Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Towns near Ajax
Other communities near Ajax
- Warbonnet7.4 mi N
- Rockerville9.7 mi NW
- Stratosphere Bowl9.8 mi NW
- Murphy10.5 mi N
- Wildwood Addition10.6 mi NW
- Spokane10.6 mi W
- Arrowhead Estates10.7 mi NW
- Gossage Memorial12.5 mi N
- Twilight Hills Addition12.8 mi N
- State Game Lodge13.3 mi SW
- McGee14.0 mi NW
- Sioux Village15.1 mi N
- Sioux Village15.1 mi N
- Hisega15.3 mi NW
- Sheridan15.4 mi W
Questions about Ajax
Where is Ajax, SD?
Ajax is an unincorporated community in Custer County, South Dakota, 3.9 miles S of Hermosa.
What county is Ajax in?
Ajax is in Custer County, South Dakota.
What is the ZIP code of Ajax, SD?
The ZIP code for Ajax is 57703.
What is the nearest town to Ajax?
Hermosa, 3.9 miles away.
Are there webcams near Ajax?
Yes. The closest is Arrowhead Estates › South-west, 11.3 miles away.
What is the hottest month in Ajax?
July, with an average high of 86°F (30°C).
What is the coldest month in Ajax?
January, with an average low of 13°F (-11°C).
How much does it rain in Ajax?
About 17.4 inches (443 mm) a year; the wettest month is May.
Does it snow in Ajax?
Yes, about 49 inches of snow fall in an average year.
When is the best time to visit Ajax?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Ajax have?
Cold semi-arid (Köppen BSk).
Last updated: