Vs > Great Falls, Montana
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Jamestown vs Great Falls, Montana Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Great Falls, Montana, Usa is approximately 12,473 km or 7,751 mi.
  • To reach Jamestown in this distance one would set out from Great Falls, Montana bearing 89.6° or E and follow the great circles arc to approach Jamestown bearing 135.4° or SE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Great Falls, Montana has a warm summer continental/ hemiboreal climate with no dry season (Dfb).
  • The annual average temperature is 14.7 °C (26.5°F) warmer.
  • Average monthly temperatures vary by 22.1 °C (39.8°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to subcontinental.
  • Total annual precipitation averages 249.3 mm (9.8 in) less which is equivalent to 249.3 l/m² (6.12 US gal/ft²) or 2,493,000 l/ha (266,518 US gal/ac) less. About 1/3 as much.
  • The altitude of the sun at midday is overall 28° higher in Jamestown than in Great Falls, Montana.
  • Relative humidity levels are 19.3% higher.
  • The mean dew point temperature is 18.5°C (33.3°F) higher.

Climate Comparison Table

The table shows values for Jamestown relative to Great Falls, Montana. You can also view this comparison the other way around from the perspective of Great Falls, Montana vs Jamestown.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +28 (+50) +24 (+43) +22 (+39) +14 (+25) +6 (+10) +-1 (-1) -7 (-12) +-6 (-10) +1 (+2) +8 (+14) +17 (+30) +23 (+42) +11 (+19)
average temperature iconAverage Temperature °C ( °F) +30 (+54) +27 (+48) +23 (+42) +18 (+32) +10 (+19) +5 (+8) 0 (0) +1 (+1) +6 (+11) +11 (+21) +20 (+36) +27 (+48) +15 (+27)
minimum temperature iconAverage Min Temperature °C ( °F) +32 (+58) +29 (+53) +27 (+49) +21 (+38) +14 (+25) +9 (+16) +5 (+9) +6 (+10) +11 (+19) +16 (+29) +22 (+40) +29 (+52) +18 (+33)
rainfall iconAverage Precipitation mm (in) -15 (-1) -5 (0) -8 (0) -26 (-1) -46 (-2) -43 (-2) +2 (+0) -29 (-1) -27 (-1) -18 (-1) -17 (-1) -19 (-1) -249 (-10)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -3 ( -10) -3 ( -11) -4 ( -13) -5 ( -17) -6 ( -19) -7 ( -23) +1 (+3) -4 ( -13) -5 ( -17) -5 ( -16) -7 ( -23) -5 ( -16)   -53 ( -15)
daylight iconAverage Daylight Hours & Minutes/ Day +4h 07' +2h 32' +0h 27' -1h 45' -3h 38' -4h 37' -4h 10' -2h 32' -0h 23' +1h 48' +3h 41' +4h 37'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +62.5 +51.5 +30.8 +7.6 -8.9 -15.3 -9.3 +7.5 +30.4 +52 +62.2 +63.4   +28
relative humidity iconRelative Humidity (%) +0 +2 +5 +20 +27 +24 +37 +38 +32 +25 +15 +6   +19.3
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +27.8 (+50) +25 (+45) +22.5 (+41) +21.1 (+38) +16.5 (+30) +10.4 (+19) +10.2 (+18) +10.9 (+20) +14 (+25) +16.6 (+30) +21.5 (+39) +25.7 (+46) +18.5 (+33)

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Jamestown vs Great Falls, Montana Discussion

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