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Vs > Chicago, Illinois
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Seattle, Washington vs Chicago, Illinois Climate & Distance Between

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  • The distance between Seattle, Washington, Usa and Chicago, Illinois, Usa is approximately 2,784 km or 1,730 mi.
  • To reach Seattle, Washington in this distance one would set out from Chicago, Illinois bearing 295.3° or WNW and follow the great circles arc to approach Seattle, Washington bearing 270.6° or W .
  • Seattle, Washington has a Mediterranean warm climate (Csb) whereas Chicago, Illinois has a hot summer continental climate with no dry season (Dfa).
  • Seattle, Washington is in or near the cool temperate wet forest biome whereas Chicago, Illinois is in or near the cool temperate moist forest biome.
  • The average annual temperature is 1 °C (1.9°F) warmer.
  • Average monthly temperatures vary by 14 °C (25.2°F) less in Seattle, Washington. The continentality subtype is truly oceanic as opposed to subcontinental.
  • Total annual precipitation averages 122.4 mm (4.8 in) more which is equivalent to 122.4 l/m² (3 US gal/ft²) or 1,224,000 l/ha (130,854 US gal/ac) more. About 1 1/7 as much.
  • There are 521 fewer hours of sunlight per year in Seattle, Washington. In whichever way circa 1h 25' less per day or about 4/5 as many.
  • The altitude of the sun at midday is overall 5.8° lower in Seattle, Washington than in Chicago, Illinois.
  • Relative humidity levels are 10.8% higher.
  • The mean dew point temperature is 3.3°C (5.9°F) higher.

Climate Comparison Table

The table shows values for Seattle, Washington relative to Chicago, Illinois. You can also view this comparison the other way around from the perspective of Chicago, Illinois vs Seattle, Washington.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +7 (+12) +8 (+15) +6 (+11) +1 (+1) -3 (-6) -5 (-9) -6 (-10) -5 (-8) -4 (-6) -1 (-3) +3 (+5) +6 (+11) +1 (+1)
average temperature iconAverage Temperature °C ( °F) +8 (+15) +9 (+16) +6 (+11) +1 (+1) -3 (-5) -5 (-8) -6 (-11) -5 (-9) -3 (-5) -1 (-1) +4 (+7) +7 (+12) +1 (+2)
minimum temperature iconAverage Min Temperature °C ( °F) +9 (+17) +9 (+17) +6 (+11) +1 (+2) -2 (-4) -4 (-8) -6 (-12) -5 (-9) -2 (-4) +0 (+1) +5 (+9) +8 (+14) +2 (+3)
rainfall iconAverage Precipitation mm (in) +89 (+4) +61 (+2) +26 (+1) -13 (-1) -48 (-2) -63 (-2) -64 (-3) -49 (-2) -20 (-1) +12 (+0) +88 (+3) +104 (+4) +122 (+5)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +9 (+29) +5 (+18) +4 (+13) 0 ( 0) -2 ( -6) -2 ( -7) -4 ( -13) -4 ( -13) 0 ( 0) +6 (+19) +7 (+23) +9 (+29)   +28 (+8)
sunshine iconAverage Sunlight Hours/ Day -2h 01' -1h 24' -1h 23' -0h 00' -1h 15' -2h 28' +0h 09' -1h 05' -1h 40' -2h 30' -1h 40' -1h 46'   -1h 25'
daylight iconAverage Daylight Hours & Minutes/ Day -0h 38' -0h 22' -0h 04' +0h 15' +0h 33' +0h 43' +0h 38' +0h 22' +0h 03' -0h 16' -0h 33' -0h 43'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -5.8 -5.8 -5.8 -5.8 -5.8 -5.9 -5.9 -5.9 -5.8 -5.9 -5.9 -5.8   -5.8
relative humidity iconRelative Humidity (%) +8 +8 +8 +6 +5 +5 +8 +12 +17 +23 +18 +12   +10.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +8.9 (+16) +9.4 (+17) +7 (+13) +2.1 (+4) -1.2 (-2) -3.1 (-6) -3.5 (-6) -1.4 (-3) +1.3 (+2) +4.5 (+8) +7 (+13) +8.2 (+15) +3.3 (+6)

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Seattle, Washington vs Chicago, Illinois Discussion

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