Arpan, United States Page

World:United States:South Dakota
Latitude 44.7883 Longitude -103.6491 Altitude (feet) 2900
Lat (DMS) 44° 47' 18N Long (DMS) 103° 38' 57W Altitude (meters) 883
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.

Arpan Temperature in Celsius

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


Arpan Cloud Cover in Percent

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


Arpan 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
Belle Fourche (11.1 nm) Castle Rock (14.2 nm) Newell (10.7 nm)
Vale (14.6 nm)
Empire (17.3 nm)
Fruitdale (7.5 nm)
Snoma (historical) (8.6 nm)
Nisland (8.0 nm)
Saint Onge (14.8 nm)
Jolly Dump (15.0 nm)
Whitewood (19.6 nm)
Crook City (20.8 nm)
Centennial City (historical) (21.2 nm)
Spearfish (20.0 nm)
Sturgis (23.5 nm)
Elizabethtown (historical) (24.2 nm)
Chinatown (24.7 nm)
Deadwood (24.9 nm)
Maitland (24.3 nm)

Nearby Airports

Code IATA Kind Name City Distance Bearing Airlines
EFC Small BELLE FOURCHE MUNI BELLE FOURCHE 9 nm W 250
SPF SPF Large BLACK HILLS CLYDE ICE FLD Spearfish 19 nm S 197
SD91 Heli STAR AVIATION NR 1 SPEARFISH 20 nm S 199
KRAP RAP Large RAPID CITY RGNL RAPID CITY 51 nm S 150 Allegiant Air, American Eagle, Delta Air Lines, Inc., United Express, http://en.wikipedia.org/wiki/Delta_Connection
Nearby references in Wikipedia:
Distance Title
0.0 nm NW Arpan, South Dakota
1.2 nm S 44th Missile Wing LGM-30 Minuteman Missile Launch Sites
3.3 nm S Belle Fourche Dam
7.5 nm S Fruitdale, South Dakota
6.3 nm E Ellsworth Air Force Base
6.3 nm E 44th Missile Wing
6.3 nm E 68th Missile Squadron


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Sat Aug 27 18:50:19 2016