This report describes the typical weather at the Rome Urbe Airport (Rome, Italy) weather station over the course of an average October. It is based on the historical records from 1998 to 2012. Earlier records are either unavailable or unreliable.
Rome has a mediterranean climate with dry hot summers and mild winters. The area within 25 mi of this station is covered by shrublands (47%), croplands (22%), forests (18%), and oceans and seas (10%).
The month of October is characterized by falling daily high temperatures, with daily highs decreasing from 76°F to 69°F over the course of the month, exceeding 82°F or dropping below 63°F only one day in ten.
Over the course of October, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:21 hours, implying an average day-over-day decrease of 2.6 minutes.
The shortest day of the month is October 31 with 10:24 hours of daylight; the longest day is October 1 with 11:44 hours of daylight.
The earliest sunrise is at 6:38am on October 28; the latest sunset is at 6:51pm on October 1; the latest sunrise is at 7:37am on October 27; the earliest sunset is at 5:05pm on October 31.
Daylight saving time (DST) ends at 2:00am on October 28, 2012, shifting sunrise and sunset to an hour earlier.
The median cloud cover ranges from 50% (partly cloudy) to 57% (partly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 7% from the start to the end of the month.
On October 16, a representative day, the sky is clear or mostly clear 10% of the time, partly cloudy 14% of the time, and mostly cloudy or overcast 11% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around October 31, occurring in 28% of days. Precipitation is least likely around October 6, occurring in 24% of days.
Throughout October, the most common forms of precipitation are thunderstorms, light rain, and moderate rain.
Thunderstorms are the most severe precipitation observed during 34% of those days with precipitation. They are most likely around October 2, when it is observed during 10% of all days.
Light rain is the most severe precipitation observed during 32% of those days with precipitation. It is most likely around October 31, when it is observed during 9% of all days.
Moderate rain is the most severe precipitation observed during 29% of those days with precipitation. It is most likely around October 31, when it is observed during 9% of all days.
Either snow is exceptionally unlikely to fall at this location in October or this station does not reliably report precipitation types.
The relative humidity typically ranges from 50% (mildly humid) to 93% (very humid) over the course of a typical October, rarely dropping below 36% (comfortable) and reaching as high as 100% (very humid).
The air is driest around October 6, at which time the relative humidity drops below 58% (mildly humid) three days out of four; it is most humid around October 2, rising above 91% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical October, the dew point typically varies from 46°F (dry) to 62°F (comfortable) and is rarely below 37°F (dry) or above 67°F (muggy).
The time of the month between October 1 and October 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of October typical wind speeds vary from 0 mph to 9 mph (calm to gentle breeze), rarely exceeding 14 mph (moderate breeze).
The highest average wind speed of 3 mph (light air) occurs around October 1, at which time the average daily maximum wind speed is 9 mph (gentle breeze).
The lowest average wind speed of 3 mph (light air) occurs around October 20, at which time the average daily maximum wind speed is 7 mph (light breeze).