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Washington, District Of Columbia vs Vientiane Climate & Distance Between

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  • The distance between Washington, District Of Columbia, Usa and Vientiane, Laos is approximately 13,699 km or 8,513 mi.
  • To reach Washington, District Of Columbia in this distance one would set out from Vientiane bearing 359.6° or N and follow the great circles arc to approach Washington, District Of Columbia bearing 180.5° or S .
  • Washington, District Of Columbia has a humid subtropical climate (Cfa) whereas Vientiane has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • Washington, District Of Columbia is in or near the warm temperate moist forest biome whereas Vientiane is in or near the subtropical moist forest biome.
  • The annual mean temperature is 11.4 °C (20.5°F) cooler.
  • Average monthly temperatures vary by 18.5 °C (33.3°F) more in Washington, District Of Columbia. The continentality subtype is subcontinental as opposed to truly hyperoceanic.
  • Total annual precipitation averages 667.6 mm (26.3 in) less which is equivalent to 667.6 l/m² (16.38 US gal/ft²) or 6,676,000 l/ha (713,709 US gal/ac) less. About 3/5 as much.
  • There are 181 more hours of sunlight per year in Washington, District Of Columbia. In whichever way circa 0h 29' more per day or about 1 as many.
  • The altitude of the sun at midday is overall 19.1° lower in Washington, District Of Columbia than in Vientiane.
  • Relative humidity levels are 22.5% lower.
  • The mean dew point temperature is 16.1°C (28.9°F) lower.

Climate Comparison Table

The table shows values for Washington, District Of Columbia relative to Vientiane. You can also view this comparison the other way around from the perspective of Vientiane vs Washington, District Of Columbia.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -18 (-32) -17 (-30) -14 (-24) -10 (-17) -4 (-7) 1 (+2) 3 (+6) 3 (+5) -1 (-1) -6 (-11) -9 (-17) -14 (-25) -7 (-13)
average temperature iconAverage Temperature °C ( °F) -20 (-37) -21 (-38) -18 (-33) -15 (-27) -9 (-15) -4 (-6) -1 (-1) -1 (-3) -5 (-9) -11 (-20) -14 (-26) -18 (-32) -11 (-21)
minimum temperature iconAverage Min Temperature °C ( °F) -19 (-35) -20 (-37) -18 (-33) -16 (-29) -11 (-20) -6 (-10) -3 (-5) -4 (-6) -7 (-13) -13 (-23) -14 (-25) -17 (-31) -12 (-22)
rainfall iconAverage Precipitation mm (in) +64 (+3) +57 (+2) +45 (+2) -16 (-1) -162 (-6) -187 (-7) -169 (-7) -223 (-9) -211 (-8) -11 (0) +69 (+3) +76 (+3) -668 (-26)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +9 (+29) +7 (+25) +8 (+26) +1 (+3) -4 ( -13) -9 ( -30) -6 ( -19) -9 ( -29) -6 ( -20) +2 (+6) +7 (+23) +10 (+32)   +10 (+3)
sunshine iconAverage Sunlight Hours/ Day -2h 48' -1h 46' -0h 05' -0h 02' +1h 52' +5h 48' +4h 05' +3h 38' +2h 02' -1h 05' -2h 14' -3h 32'   +0h 29'
daylight iconAverage Daylight Hours & Minutes/ Day -1h 26' -0h 53' -0h 09' +0h 36' +1h 16' +1h 36' +1h 27' +0h 53' +0h 08' -0h 38' -1h 17' -1h 37'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -20.7 -20.6 -20.7 -20.7 -16.2 -9.9 -15.6 -21 -21 -20.9 -20.9 -20.9   -19.1
relative humidity iconRelative Humidity (%) -12 -16 -17 -23 -27 -30 -29 -29 -28 -24 -20 -15   -22.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -21.3 (-38) -22.8 (-41) -21.3 (-38) -20.1 (-36) -14.8 (-27) -10.6 (-19) -7.8 (-14) -8.2 (-15) -11.5 (-21) -16.2 (-29) -18.4 (-33) -19.7 (-35) -16.1 (-29)

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Washington, District Of Columbia vs Vientiane Discussion

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