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Jamestown vs Onahama Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Onahama, Japan is approximately 15,986 km or 9,934 mi.
  • To reach Jamestown in this distance one would set out from Onahama bearing 296.5° or WNW and follow the great circles arc to approach Jamestown bearing 228.1° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Onahama has a humid subtropical climate (Cfa).
  • The annual mean temperature is 8.9 °C (16.1°F) warmer.
  • Average monthly temperatures vary by 16.8 °C (30.2°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to semicontinental.
  • Total annual precipitation averages 1219.8 mm (48 in) less which is equivalent to 1219.8 l/m² (29.94 US gal/ft²) or 12,198,000 l/ha (1,304,047 US gal/ac) less. About 1/9 as much.
  • The altitude of the sun at midday is overall 17.5° higher in Jamestown than in Onahama.
  • Relative humidity levels are 3.5% lower.
  • The mean dew point temperature is 7.7°C (13.9°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +19 (+34) +19 (+34) +18 (+32) +12 (+21) +5 (+9) +2 (+3) -3 (-5) -5 (-10) -3 (-5) +3 (+6) +8 (+14) +13 (+24) +7 (+13)
average temperature iconAverage Temperature °C ( °F) +21 (+38) +21 (+37) +18 (+33) +13 (+24) +7 (+12) +3 (+5) -2 (-3) -4 (-7) -1 (-2) +4 (+8) +11 (+19) +16 (+29) +9 (+16)
minimum temperature iconAverage Min Temperature °C ( °F) +23 (+41) +22 (+40) +21 (+37) +15 (+26) +8 (+14) +3 (+5) -2 (-4) -4 (-7) -1 (-1) +7 (+12) +12 (+22) +18 (+33) +10 (+18)
rainfall iconAverage Precipitation mm (in) -37 (-1) -52 (-2) -83 (-3) -118 (-5) -128 (-5) -139 (-5) -80 (-3) -128 (-5) -170 (-7) -160 (-6) -88 (-3) -37 (-1) -1220 (-48)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 03' +1h 54' +0h 20' -1h 18' -2h 42' -3h 25' -3h 06' -1h 54' -0h 18' +1h 21' +2h 44' +3h 25'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +52.1 +41.3 +20.5 -2.7 -19.3 -25.8 -19.9 -3.2 +19.6 +41.3 +51.6 +52.9   +17.5
relative humidity iconRelative Humidity (%) +3 +5 +1 -6 -5 -12 -13 -9 -6 -3 +2 +1   -3.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +20 (+36) +20.3 (+37) +17.4 (+31) +11.2 (+20) +5.6 (+10) +0.3 (+1) -4 (-7) -5.6 (-10) -2.1 (-4) +3.6 (+6) +10.5 (+19) +15.6 (+28) +7.7 (+14)

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Jamestown vs Onahama Discussion

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