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Jamestown vs Teheran Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Teheran, Iran is approximately 8,298 km or 5,157 mi.
  • To reach Jamestown in this distance one would set out from Teheran bearing 236.8° or WSW and follow the great circles arc to approach Jamestown bearing 225° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Teheran has a mid-latitude cool steppe climate (BSk).
  • The annual average temperature is 4.8 °C (8.7°F) warmer.
  • Average monthly temperatures vary by 24.3 °C (43.7°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly continental.
  • Total annual precipitation averages 92.9 mm (3.7 in) less which is equivalent to 92.9 l/m² (2.28 US gal/ft²) or 929,000 l/ha (99,316 US gal/ac) less. About 3/5 as much.
  • The altitude of the sun at midday is overall 16.2° higher in Jamestown than in Teheran.
  • Relative humidity levels are 29.4% higher.
  • The mean dew point temperature is 13.7°C (24.7°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +19 (+34) +16 (+29) +12 (+22) +5 (+9) -4 (-7) -10 (-18) -14 (-25) -13 (-23) -9 (-16) +-1 (-2) +8 (+14) +14 (+25) +2 (+3)
average temperature iconAverage Temperature °C ( °F) +22 (+39) +19 (+34) +14 (+25) +8 (+14) 0 (0) -7 (-12) -11 (-19) -10 (-17) -5 (-10) +2 (+3) +10 (+18) +17 (+31) +5 (+9)
minimum temperature iconAverage Min Temperature °C ( °F) +22 (+40) +20 (+36) +17 (+31) +11 (+20) +4 (+7) -2 (-4) -6 (-11) -5 (-9) -1 (-2) +6 (+11) +13 (+23) +18 (+32) +8 (+15)
rainfall iconAverage Precipitation mm (in) -29 (-1) -24 (-1) -17 (-1) -18 (-1) +3 (+0) +15 (+1) +31 (+1) +9 (+0) +4 (+0) -12 (0) -21 (-1) -33 (-1) -93 (-4)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -1 ( -3) 0 ( 0) 0 ( 0) -3 ( -10) +1 (+3) +5 (+17) +8 (+26) +3 (+10) +2 (+7) -1 ( -3) -4 ( -13) -4 ( -13)   +6 (+2)
daylight iconAverage Daylight Hours & Minutes/ Day +2h 57' +1h 50' +0h 20' -1h 16' -2h 37' -3h 18' -2h 59' -1h 50' -0h 17' +1h 18' +2h 39' +3h 18'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +50.8 +39.9 +19.2 -4 -20.6 -27 -21.1 -4.4 +18.4 +40.1 +50.4 +51.6   +16.2
relative humidity iconRelative Humidity (%) -2 +8 +17 +26 +39 +48 +50 +52 +50 +36 +25 +4   +29.4
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +19.5 (+35) +19.6 (+35) +17.4 (+31) +14.6 (+26) +11.5 (+21) +10.3 (+19) +7.3 (+13) +8.8 (+16) +11.4 (+21) +11.9 (+21) +15.6 (+28) +16.8 (+30) +13.7 (+25)

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