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Helena, Mt vs Rochambeau Climate & Distance Between

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  • The distance between Helena, Mt, Usa and Rochambeau, French Guiana is approximately 7,336 km or 4,559 mi.
  • To reach Helena, Mt in this distance one would set out from Rochambeau bearing 319.5° or NW and follow the great circles arc to approach Helena, Mt bearing 289.7° or WNW .
  • Helena, Mt has a mid-latitude cool steppe climate (BSk) whereas Rochambeau has a tropical rainforest climate (Af).
  • Helena, Mt is in or near the cool temperate steppe biome whereas Rochambeau is in or near the subtropical wet forest biome.
  • The average temperature is 19.7 °C (35.4°F) cooler.
  • Average monthly temperatures vary by 26.7 °C (48.1°F) more in Helena, Mt. The continentality subtype is subcontinental as opposed to extremely hyperoceanic.
  • Total annual precipitation averages 3379.2 mm (133 in) less which is equivalent to 3379.2 l/m² (82.93 US gal/ft²) or 33,792,000 l/ha (3,612,589 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 31.1° lower in Helena, Mt than in Rochambeau.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -30 (-54) -26 (-47) -22 (-40) -16 (-29) -11 (-19) -5 (-10) -1 (-2) -3 (-5) -11 (-19) -17 (-31) -25 (-45) -30 (-54) -17 (-30)
average temperature iconAverage Temperature °C ( °F) -33 (-59) -29 (-52) -25 (-45) -20 (-36) -15 (-27) -9 (-17) -5 (-10) -7 (-12) -14 (-25) -19 (-35) -27 (-48) -32 (-58) -20 (-35)
minimum temperature iconAverage Min Temperature °C ( °F) -35 (-64) -32 (-57) -28 (-51) -24 (-43) -19 (-34) -13 (-24) -10 (-18) -11 (-20) -17 (-30) -22 (-40) -28 (-51) -34 (-62) -23 (-41)
rainfall iconAverage Precipitation mm (in) -423 (-17) -295 (-12) -375 (-15) -375 (-15) -554 (-22) -412 (-16) -216 (-9) -132 (-5) -44 (-2) -67 (-3) -142 (-6) -344 (-14) -3379 (-133)
daylight iconAverage Daylight Hours & Minutes/ Day -2h 55' -1h 48' -0h 19' +1h 14' +2h 35' +3h 17' +2h 58' +1h 48' +0h 16' -1h 16' -2h 37' -3h 17'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -41.6 -41.4 -41.4 -27.4 -10.9 -4.6 -10.7 -27.5 -41.5 -41.5 -41.7 -41.7   -31.1

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Helena, Mt vs Rochambeau Discussion

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