Grindstone, United States Page

World:United States:South Dakota
Latitude 44.1392 Longitude -101.9674 Altitude (feet) 2509
Lat (DMS) 44° 8' 21N Long (DMS) 101° 58' 3W Altitude (meters) 764
Time zone (est) America/Denver
Approximate population for 7 km radius from this point:

Weather Charts

New Covid-19 forecasts: Per the US DHS, the half-life of the SARS-CoV-2 virus in open air is inversely correlated to UV radiation, relative humidity, and temperature. Choose those graphs below for a rough estimate. UV radiation (sunlight) matters a lot (high UV is good), relative humidity and temperature matter less, but for both, high values are good. [1]
Example 1: High UV, 30C, RH 70% -> half life of 1.9 minutes.
Example 2: Low UV, 10C, RH 20% -> half life of 107 minutes. Two orders of magnitude worse.

Grindstone Temperature in Celsius

Display: Relative Humidity
Time in GMT, not local. Click-drag to zoom,click-click to reset,shift-click to drag.


Grindstone Cloud Cover in Percent

Display: Relative Humidity
Time in GMT, not local. Click-drag to zoom,click-click to reset,shift-click to drag.


Grindstone Precipitation

Display: Relative Humidity
Time in GMT, not local. Click-drag to zoom,click-click to reset,shift-click to drag.

Nearby Cities and Towns
West North East South
Creighton (12.5 nm)
Wall (14.7 nm)
Hilland (9.8 nm)
Dowling (historical) (11.7 nm)
Hartley (17.1 nm)
Pedro (18.1 nm)
Billsburg (20.0 nm)
Bridger (24.5 nm)
Milesville (22.8 nm)
Elevenmile Corner (13.4 nm)
Elbon (14.7 nm)
Philip (14.3 nm)
Philip Junction (16.8 nm)
Cottonwood (10.7 nm)
Quinn (11.4 nm)
Cactus Flat (18.5 nm)
Interior (24.7 nm)
Sevenmile Corner (22.5 nm)
Weta (24.4 nm)

Nearby Airports

Code IATA Kind Name City Distance Bearing Airlines
SD66 Small COOKS COTTONWOOD 9 nm S 176
6V4 Small WALL MUNI WALL 14 nm W 236
SD69 Heli BADLANDS INTERIOR 21 nm S 171
KRAP RAP Large RAPID CITY RGNL RAPID CITY 47 nm W 263 Allegiant Air, American Eagle, Delta Air Lines, Inc., United Express, http://en.wikipedia.org/wiki/Delta_Connection
KPIR PIR Large PIERRE RGNL PIERRE 73 nm E 78 CSA Air, Inc., Great Lakes Airlines
Nearby references in Wikipedia:
Distance Title
0.0 nm SW Grindstone, South Dakota
1.8 nm S 44th Missile Wing LGM-30 Minuteman Missile Launch Sites
6.0 nm N List of United States tornadoes in May 2011
9.8 nm NE Hilland, South Dakota
10.7 nm S Cottonwood, South Dakota
12.1 nm N Ellsworth Air Force Base
12.1 nm N 44th Missile Wing


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Sat Aug 27 18:49:04 2016