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Niamey vs Helena, Mt Climate & Distance Between

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  • The distance between Niamey, Niger and Helena, Mt, Usa is approximately 10,672 km or 6,632 mi.
  • To reach Niamey in this distance one would set out from Helena, Mt bearing 63.1° or ENE and follow the great circles arc to approach Niamey bearing 140.9° or SE .
  • Niamey has a subtropical hot steppe climate (BSh) whereas Helena, Mt has a mid-latitude cool steppe climate (BSk).
  • Niamey is in or near the tropical very dry forest biome whereas Helena, Mt is in or near the cool temperate steppe biome.
  • The annual mean temperature is 22.7 °C (40.9°F) warmer.
  • Average monthly temperatures vary by 17.9 °C (32.2°F) less in Niamey. The continentality subtype is barely hyperoceanic as opposed to subcontinental.
  • Total annual precipitation averages 246.3 mm (9.7 in) more which is equivalent to 246.3 l/m² (6.04 US gal/ft²) or 2,463,000 l/ha (263,311 US gal/ac) more. About 1 5/6 as much.
  • The altitude of the sun at midday is overall 29° higher in Niamey than in Helena, Mt.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +34 (+61) +33 (+59) +32 (+58) +28 (+50) +22 (+39) +13 (+23) +5 (+8) +5 (+8) +13 (+24) +23 (+42) +30 (+55) +34 (+61) +23 (+41)
average temperature iconAverage Temperature °C ( °F) +31 (+56) +30 (+55) +30 (+54) +28 (+50) +23 (+41) +15 (+27) +8 (+15) +8 (+15) +16 (+29) +24 (+42) +28 (+51) +31 (+56) +23 (+41)
minimum temperature iconAverage Min Temperature °C ( °F) +29 (+51) +28 (+50) +28 (+51) +27 (+49) +24 (+42) +17 (+30) +12 (+22) +12 (+22) +19 (+33) +24 (+44) +26 (+46) +28 (+51) +23 (+41)
rainfall iconAverage Precipitation mm (in) -16 (-1) -10 (0) -15 (-1) -19 (-1) -11 (0) +21 (+1) +126 (+5) +138 (+5) +63 (+2) -6 (0) -12 (0) -15 (-1) +246 (+10)
daylight iconAverage Daylight Hours & Minutes/ Day +2h 28' +1h 31' +0h 16' -1h 02' -2h 11' -2h 47' -2h 30' -1h 31' -0h 14' +1h 04' +2h 12' +2h 47'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +33 +32.8 +32.9 +33 +19.5 +13.2 +19.2 +33.1 +33.1 +33.1 +33.1 +33.1   +29

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Niamey vs Helena, Mt Discussion

You are welcome to incorporate your thoughts on the differences in climate or other matters such as contrasts in culture, standard of living, demographics etc.

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Climate Guides for Locations near Niamey

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