Vs > Rapid City, South Dakota
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Helena, Mt vs Rapid City, South Dakota Climate & Distance Between

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  • The distance between Helena, Mt, Usa and Rapid City, South Dakota, Usa is approximately 740 km or 460 mi.
  • To reach Helena, Mt in this distance one would set out from Rapid City, South Dakota bearing 295.3° or WNW and follow the great circles arc to approach Helena, Mt bearing 289.1° or WNW .
  • Helena, Mt has a mid-latitude cool steppe climate (BSk) whereas Rapid City, South Dakota has a hot summer continental climate with no dry season (Dfa).
  • Both are in or near the cool temperate steppe biome.
  • The average temperature is 1.4 °C (2.5°F) cooler.
  • Average monthly temperatures vary by 0.1 °C (0.2°F) less in Helena, Mt. The continentality subtype is subcontinental for both.
  • Total annual precipitation averages 166.4 mm (6.6 in) less which is equivalent to 166.4 l/m² (4.08 US gal/ft²) or 1,664,000 l/ha (177,893 US gal/ac) less. About 2/3 as much.
  • The altitude of the sun at midday is overall 2.5° lower in Helena, Mt than in Rapid City, South Dakota.

Climate Comparison Table

The table shows values for Helena, Mt relative to Rapid City, South Dakota. You can also view this comparison the other way around from the perspective of Rapid City, South Dakota vs Helena, Mt.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -3 (-6) +-1 (-2) -1 (-1) -1 (-1) -1 (-2) -1 (-2) -1 (-1) -1 (-1) -2 (-3) -2 (-4) -2 (-4) -3 (-6) -2 (-3)
average temperature iconAverage Temperature °C ( °F) -2 (-3) +0 (+0) 0 (0) -1 (-1) -2 (-3) -2 (-3) -2 (-3) -1 (-3) -2 (-4) -2 (-4) -2 (-3) -2 (-4) -1 (-3)
minimum temperature iconAverage Min Temperature °C ( °F) 0 (-1) +1 (+2) +1 (+1) -1 (-1) -2 (-4) -2 (-4) -3 (-6) -2 (-4) -2 (-4) -2 (-3) -1 (-2) -1 (-2) -1 (-2)
rainfall iconAverage Precipitation mm (in) +8 (+0) -2 (0) -6 (0) -28 (-1) -36 (-1) -36 (-1) -38 (-1) -18 (-1) -2 (0) -13 (-1) +0 (+0) +4 (+0) -166 (-7)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 16' -0h 10' -0h 01' +0h 06' +0h 14' +0h 19' +0h 17' +0h 10' +0h 01' -0h 07' -0h 15' -0h 19'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -2.5 -2.5 -2.5 -2.6 -2.5 -2.6 -2.6 -2.6 -2.5 -2.6 -2.6 -2.5   -2.5

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Helena, Mt vs Rapid City, South Dakota Discussion

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