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Jamestown vs Chios Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Chios, Greece is approximately 6,889 km or 4,281 mi.
  • To reach Jamestown in this distance one would set out from Chios bearing 215.1° or SW and follow the great circles arc to approach Jamestown bearing 208° or SSW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Chios has a Mediterranean hot climate (Csa).
  • The average annual temperature is 3.5 °C (6.2°F) warmer.
  • Average monthly temperatures vary by 13 °C (23.4°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly oceanic.
  • Total annual precipitation averages 519 mm (20.4 in) less which is equivalent to 519 l/m² (12.74 US gal/ft²) or 5,190,000 l/ha (554,845 US gal/ac) less. About 1/5 as much.
  • The altitude of the sun at midday is overall 18.9° higher in Jamestown than in Chios.
  • Relative humidity levels are 9.6% higher.
  • The mean dew point temperature is 5.7°C (10.2°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +14 (+25) +13 (+23) +12 (+22) +7 (+13) +-1 (-2) -6 (-11) -10 (-18) -9 (-16) -5 (-9) -1 (-2) +4 (+7) +9 (+16) +2 (+4)
average temperature iconAverage Temperature °C ( °F) +14 (+24) +14 (+24) +12 (+21) +8 (+14) +2 (+3) -4 (-6) -8 (-14) -7 (-12) -3 (-5) -1 (-1) +5 (+9) +10 (+17) +3 (+6)
minimum temperature iconAverage Min Temperature °C ( °F) +13 (+23) +14 (+25) +13 (+23) +9 (+16) +3 (+5) -2 (-4) -6 (-11) -5 (-9) -2 (-4) +1 (+2) +5 (+9) +9 (+16) +4 (+8)
rainfall iconAverage Precipitation mm (in) -120 (-5) -97 (-4) -48 (-2) -22 (-1) +3 (+0) +7 (+0) +30 (+1) +9 (+0) -3 (0) -40 (-2) -83 (-3) -155 (-6) -519 (-20)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -8 ( -26) -8 ( -28) -4 ( -13) -3 ( -10) 0 ( 0) +4 (+13) +7 (+23) +3 (+10) +1 (+3) -4 ( -13) -9 ( -30) -14 ( -45)   -35 ( -10)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 10' +1h 58' +0h 21' -1h 21' -2h 49' -3h 33' -3h 13' -1h 58' -0h 18' +1h 24' +2h 51' +3h 33'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +53.5 +42.6 +21.8 -1.3 -17.9 -24.4 -18.4 -1.7 +21.1 +42.8 +53.1 +54.3   +18.9
relative humidity iconRelative Humidity (%) -3 +0 +3 +8 +15 +20 +26 +23 +18 +7 +2 -4   +9.6
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +12.1 (+22) +12.8 (+23) +11.6 (+21) +9.5 (+17) +5 (+9) +1.8 (+3) -0.3 (-1) -0.5 (-1) +1.4 (+3) +1.1 (+2) +5.3 (+10) +8.1 (+15) +5.7 (+10)

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