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Vs > San Francisco, California
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Rome/ Fiumicino vs San Francisco, California Climate & Distance Between

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  • The distance between Rome/ Fiumicino, Italy and San Francisco, California, Usa is approximately 10,058 km or 6,250 mi.
  • To reach Rome/ Fiumicino in this distance one would set out from San Francisco, California bearing 32° or NNE and follow the great circles arc to approach Rome/ Fiumicino bearing 145.7° or SE .
  • Rome/ Fiumicino has a Mediterranean hot climate (Csa) whereas San Francisco, California has a Mediterranean warm climate (Csb).
  • Both are in or near the warm temperate dry forest biome.
  • The annual mean temperature is 1.5 °C (2.6°F) warmer.
  • Average monthly temperatures vary by 6.5 °C (11.7°F) more in Rome/ Fiumicino. The continentality subtype is truly oceanic as opposed to barely hyperoceanic.
  • Total annual precipitation averages 232.7 mm (9.2 in) more which is equivalent to 232.7 l/m² (5.71 US gal/ft²) or 2,327,000 l/ha (248,772 US gal/ac) more. About 1 1/2 as much.
  • The altitude of the sun at midday is overall 4.2° lower in Rome/ Fiumicino than in San Francisco, California.
  • Relative humidity levels are 6.5% higher.
  • The mean dew point temperature is 2.8°C (5°F) higher.

Climate Comparison Table

The table shows values for Rome/ Fiumicino relative to San Francisco, California. You can also view this comparison the other way around from the perspective of San Francisco, California vs Rome/ Fiumicino.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) 0 (0) -2 (-3) -1 (-1) +0 (+1) +3 (+5) +4 (+8) +7 (+12) +6 (+11) +3 (+5) +1 (+1) 0 (+1) 1 (+1) +2 (+3)
average temperature iconAverage Temperature °C ( °F) -1 (-2) -2 (-4) -1 (-2) +0 (+0) +2 (+4) +4 (+8) +6 (+11) +6 (+11) +3 (+5) +1 (+2) 0 (0) 0 (0) +1 (+3)
minimum temperature iconAverage Min Temperature °C ( °F) -2 (-3) -3 (-5) -2 (-3) 0 (0) +2 (+4) +4 (+8) +6 (+11) +6 (+10) +3 (+5) +1 (+2) 0 (-1) -1 (-1) +1 (+2)
rainfall iconAverage Precipitation mm (in) -30 (-1) -6 (0) -13 (-1) +20 (+1) +27 (+1) +14 (+1) +14 (+1) +32 (+1) +63 (+2) +62 (+2) +38 (+1) +11 (+0) +233 (+9)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 22' -0h 13' -0h 02' +0h 09' +0h 20' +0h 25' +0h 23' +0h 13' +0h 02' -0h 09' -0h 20' -0h 25'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -4.3 -4.3 -4.3 -4.3 -4.3 -4.2 -4.1 -4 -4.1 -4.1 -4.1 -4.2   -4.2
relative humidity iconRelative Humidity (%) +0 +4 +9 +9 +9 +8 +3 +4 +9 +11 +9 +3   +6.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -1 (-2) -1.2 (-2) +0.6 (+1) +1.9 (+3) +4.3 (+8) +5.8 (+10) +6.7 (+12) +6.5 (+12) +4.6 (+8) +3.2 (+6) +1.7 (+3) +0.4 (+1) +2.8 (+5)

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Rome/ Fiumicino vs San Francisco, California Discussion

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