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Helena, Mt vs Antananarivo Climate & Distance Between

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  • The distance between Helena, Mt, Usa and Antananarivo, Madagascar is approximately 16,401 km or 10,191 mi.
  • To reach Helena, Mt in this distance one would set out from Antananarivo bearing 333.4° or NNW and follow the great circles arc to approach Helena, Mt bearing 218.1° or SW .
  • Helena, Mt has a mid-latitude cool steppe climate (BSk) whereas Antananarivo has a subtropical highland climate with dry winters (Cwb).
  • Helena, Mt is in or near the cool temperate steppe biome whereas Antananarivo is in or near the subtropical moist forest biome.
  • The average annual temperature is 11.3 °C (20.4°F) cooler.
  • Average monthly temperatures vary by 21 °C (37.8°F) more in Helena, Mt. The continentality subtype is subcontinental as opposed to truly hyperoceanic.
  • Total annual precipitation averages 1161.8 mm (45.7 in) less which is equivalent to 1161.8 l/m (28.51 US gal/ft) or 11,618,000 l/ha (1,242,041 US gal/ac) less. About 1/5 as much.
  • The altitude of the sun at midday is overall 25.5° lower in Helena, Mt than in Antananarivo.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -28 (-50) -24 (-43) -19 (-34) -12 (-21) -5 (-8) +3 (+6) +9 (+16) +7 (+13) -3 (-5) -11 (-20) -21 (-37) -27 (-48) -11 (-19)
average temperature iconAverage Temperature °C ( °F) -27 (-49) -24 (-43) -19 (-35) -13 (-23) -5 (-10) +2 (+4) +7 (+12) +5 (+9) -3 (-6) -11 (-20) -20 (-36) -26 (-47) -11 (-20)
minimum temperature iconAverage Min Temperature °C ( °F) -29 (-52) -26 (-46) -22 (-39) -16 (-28) -8 (-15) -1 (-2) +2 (+4) +1 (+2) -6 (-10) -13 (-24) -21 (-38) -28 (-50) -14 (-25)
rainfall iconAverage Precipitation mm (in) -258 (-10) -269 (-11) -185 (-7) -40 (-2) +23 (+1) +40 (+2) +17 (+1) +22 (+1) +19 (+1) -61 (-2) -176 (-7) -295 (-12) -1162 (-46)
daylight iconAverage Daylight Hours & Minutes/ Day -4h 10' -2h 34' -0h 28' +1h 46' +3h 41' +4h 40' +4h 14' +2h 34' +0h 24' -1h 50' -3h 44' -4h 40'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day () -63.5 -48.1 -27.1 -3.9 +12.7 +19 +13 -3.8 -26.6 -48.7 -63.2 -65.3   -25.5

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Helena, Mt vs Antananarivo Discussion

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