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Vs > Des Moines, Iowa
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Jamestown vs Des Moines, Iowa Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Des Moines, Iowa, Usa is approximately 11,005 km or 6,838 mi.
  • To reach Jamestown in this distance one would set out from Des Moines, Iowa bearing 103.4° or ESE and follow the great circles arc to approach Jamestown bearing 130.8° or SE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Des Moines, Iowa has a hot summer continental climate with no dry season (Dfa).
  • The mean annual temperature is 11.9 °C (21.5°F) warmer.
  • Average monthly temperatures vary by 27.8 °C (50°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly continental.
  • Total annual precipitation averages 704.3 mm (27.7 in) less which is equivalent to 704.3 l/m² (17.29 US gal/ft²) or 7,043,000 l/ha (752,943 US gal/ac) less. About 1/6 as much.
  • The altitude of the sun at midday is overall 22° higher in Jamestown than in Des Moines, Iowa.
  • Relative humidity levels are 10.1% higher.
  • The mean dew point temperature is 13.6°C (24.4°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +29 (+53) +26 (+47) +20 (+35) +10 (+19) +1 (+2) -5 (-9) -8 (-15) -7 (-13) +-2 (-4) +5 (+9) +14 (+25) +24 (+43) +9 (+16)
average temperature iconAverage Temperature °C ( °F) +31 (+56) +28 (+51) +21 (+38) +14 (+24) +5 (+9) -1 (-2) -5 (-9) -3 (-6) +2 (+3) +8 (+15) +17 (+31) +26 (+47) +12 (+21)
minimum temperature iconAverage Min Temperature °C ( °F) +33 (+59) +30 (+54) +24 (+44) +17 (+30) +8 (+15) +2 (+3) -2 (-4) -1 (-1) +5 (+8) +12 (+22) +19 (+35) +28 (+50) +15 (+26)
rainfall iconAverage Precipitation mm (in) -16 (-1) -18 (-1) -39 (-2) -75 (-3) -75 (-3) -95 (-4) -63 (-2) -97 (-4) -85 (-3) -65 (-3) -46 (-2) -31 (-1) -704 (-28)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -4 ( -13) -3 ( -11) -5 ( -16) -7 ( -23) -7 ( -23) -5 ( -17) 0 ( 0) -6 ( -19) -6 ( -20) -6 ( -19) -6 ( -20) -6 ( -19)   -61 ( -17)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 28' +2h 09' +0h 23' -1h 29' -3h 04' -3h 52' -3h 31' -2h 09' -0h 20' +1h 32' +3h 06' +3h 53'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +56.6 +45.6 +24.8 +1.7 -14.8 -21.2 -15.2 +1.6 +24.4 +46.1 +56.3 +57.4   +22
relative humidity iconRelative Humidity (%) -9 -4 +2 +12 +18 +15 +21 +19 +22 +20 +10 -5   +10.1
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +27.2 (+49) +25.4 (+46) +20 (+36) +15.7 (+28) +9.3 (+17) +2.6 (+5) +0.6 (+1) +1.3 (+2) +6.7 (+12) +12.4 (+22) +18.2 (+33) +23.4 (+42) +13.6 (+24)

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Jamestown vs Des Moines, Iowa Discussion

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