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Jamestown vs Amman Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Amman, Jordan is approximately 6,935 km or 4,310 mi.
  • To reach Jamestown in this distance one would set out from Amman bearing 226.2° or SW and follow the great circles arc to approach Jamestown bearing 219.6° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Amman has a mid-latitude cool steppe climate (BSk).
  • The mean temperature is 4.7 °C (8.5°F) warmer.
  • Average monthly temperatures vary by 13.5 °C (24.3°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly oceanic.
  • Total annual precipitation averages 134 mm (5.3 in) less which is equivalent to 134 l/m² (3.29 US gal/ft²) or 1,340,000 l/ha (143,255 US gal/ac) less. About 1/2 as much.
  • The altitude of the sun at midday is overall 12.5° higher in Jamestown than in Amman.
  • Relative humidity levels are 19.1% higher.
  • The mean dew point temperature is 9.7°C (17.5°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +14 (+25) +12 (+22) +11 (+20) +4 (+7) +-4 (-7) -8 (-14) -10 (-18) -11 (-20) -9 (-16) +-5 (-9) +3 (+5) +9 (+16) +1 (+1)
average temperature iconAverage Temperature °C ( °F) +16 (+29) +15 (+27) +12 (+22) +8 (+15) +2 (+4) -3 (-5) -5 (-9) -5 (-9) -3 (-6) +0 (+0) +7 (+12) +13 (+23) +5 (+9)
minimum temperature iconAverage Min Temperature °C ( °F) +17 (+31) +16 (+29) +16 (+29) +11 (+20) +6 (+11) +2 (+4) -1 (-2) -2 (-4) +1 (+2) +4 (+7) +9 (+16) +14 (+25) +8 (+14)
rainfall iconAverage Precipitation mm (in) -54 (-2) -44 (-2) -31 (-1) -7 (0) +15 (+1) +18 (+1) +33 (+1) +10 (+0) +5 (+0) -6 (0) -25 (-1) -48 (-2) -134 (-5)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -6 ( -19) -5 ( -18) -3 ( -10) -1 ( -3) +2 (+6) +6 (+20) +8 (+26) +3 (+10) +2 (+7) -1 ( -3) -5 ( -17) -7 ( -23)   -7 ( -2)
daylight iconAverage Daylight Hours & Minutes/ Day +2h 40' +1h 39' +0h 18' -1h 09' -2h 22' -2h 59' -2h 42' -1h 40' -0h 15' +1h 11' +2h 24' +2h 59'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +47.1 +36.2 +15.4 -7.7 -24.3 -30.7 -24.8 -8.1 +14.8 +36.5 +46.7 +47.9   +12.5
relative humidity iconRelative Humidity (%) -6 +0 +5 +17 +35 +36 +37 +34 +29 +28 +16 -2   +19.1
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +14.1 (+25) +14.2 (+26) +12.9 (+23) +12.2 (+22) +11.8 (+21) +8.1 (+15) +5.8 (+10) +4.2 (+8) +4.3 (+8) +7.5 (+14) +10.2 (+18) +11.5 (+21) +9.7 (+17)

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Jamestown vs Amman Discussion

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