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Jamestown vs Ottawa, Ontario Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Ottawa, Ontario, Canada is approximately 9,772 km or 6,072 mi.
  • To reach Jamestown in this distance one would set out from Ottawa, Ontario bearing 115.3° or ESE and follow the great circles arc to approach Jamestown bearing 138.6° or SE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Ottawa, Ontario has a warm summer continental/ hemiboreal climate with no dry season (Dfb).
  • The mean temperature is 15.8 °C (28.5°F) warmer.
  • Average monthly temperatures vary by 27.5 °C (49.5°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly continental.
  • Total annual precipitation averages 732.5 mm (28.8 in) less which is equivalent to 732.5 l/m² (17.98 US gal/ft²) or 7,325,000 l/ha (783,091 US gal/ac) less. About 1/6 as much.
  • The altitude of the sun at midday is overall 25.8° higher in Jamestown than in Ottawa, Ontario.
  • Relative humidity levels are 6.8% higher.
  • The mean dew point temperature is 16.6°C (29.8°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +33 (+60) +32 (+57) +26 (+47) +16 (+29) +5 (+10) +-1 (-1) -4 (-8) +-3 (-5) +2 (+4) +10 (+18) +18 (+33) +28 (+50) +14 (+24)
average temperature iconAverage Temperature °C ( °F) +35 (+62) +33 (+60) +27 (+48) +18 (+33) +9 (+16) +3 (+5) -1 (-1) +1 (+1) +5 (+10) +12 (+21) +20 (+35) +29 (+53) +16 (+29)
minimum temperature iconAverage Min Temperature °C ( °F) +36 (+65) +35 (+63) +29 (+52) +20 (+36) +12 (+21) +6 (+10) +2 (+3) +3 (+5) +7 (+13) +14 (+26) +20 (+36) +30 (+54) +18 (+32)
rainfall iconAverage Precipitation mm (in) -43 (-2) -40 (-2) -37 (-1) -55 (-2) -59 (-2) -66 (-3) -54 (-2) -78 (-3) -79 (-3) -73 (-3) -81 (-3) -70 (-3) -733 (-29)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -9 ( -29) -9 ( -32) -7 ( -23) -8 ( -27) -7 ( -23) -5 ( -17) -3 ( -10) -7 ( -23) -9 ( -30) -10 ( -32) -13 ( -43) -13 ( -42)   -100 ( -27)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 51' +2h 23' +0h 26' -1h 38' -3h 25' -4h 19' -3h 55' -2h 23' -0h 22' +1h 42' +3h 27' +4h 19'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +60.3 +49.4 +28.6 +5.5 -11.1 -17.4 -11.4 +5.3 +28.2 +49.8 +60.1 +61.2   +25.8
relative humidity iconRelative Humidity (%) -12 -9 -3 +9 +19 +16 +21 +22 +16 +10 +2 -10   +6.7
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +30.4 (+55) +29.6 (+53) +24.1 (+43) +18.9 (+34) +13 (+23) +6.6 (+12) +4.3 (+8) +5.7 (+10) +8.6 (+15) +13.3 (+24) +18.8 (+34) +25.6 (+46) +16.6 (+30)

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Jamestown vs Ottawa, Ontario Discussion

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