This report describes the typical weather at the Urumqi Diwopu International Airport (Urumqi, China) weather station over the course of an average October. It is based on the historical records from 1988 to 2012. Earlier records are either unavailable or unreliable.
Urumqi has a humid continental climate with hot summers and no dry season. The area within 25 mi of this station is covered by grasslands (53%), shrublands (32%), croplands (11%), and tundra (2%).
The month of October is characterized by very rapidly falling daily high temperatures, with daily highs decreasing from 68°F to 49°F over the course of the month, exceeding 78°F or dropping below 39°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 1:26 hours, implying an average day-over-day decrease of 2.8 minutes.
The shortest day of the month is October 31 with 10:17 hours of daylight; the longest day is October 1 with 11:43 hours of daylight.
The earliest sunrise is at 8:08am on October 1; the latest sunset is at 7:51pm on October 1; the latest sunrise is at 8:45am on October 31; the earliest sunset is at 7:02pm on October 31.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 36% (mostly clear) to 41% (partly cloudy).
On October 16, a representative day, the sky is clear or mostly clear 18% of the time, partly cloudy 2% of the time, and mostly cloudy or overcast 13% 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 33% of days. Precipitation is least likely around October 9, occurring in 24% of days.
Throughout October, the most common forms of precipitation are light rain, light snow, and moderate snow.
Light rain is the most severe precipitation observed during 55% of those days with precipitation. It is most likely around October 1, when it is observed during 19% of all days.
Light snow is the most severe precipitation observed during 27% of those days with precipitation. It is most likely around October 31, when it is observed during 13% of all days.
Moderate snow is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around October 31, when it is observed during 8% of all days.
The likelihood of snow falling is highest around October 31, occurring in 21% of days.
Either snow rarely accumulates at this location in October or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 31% (comfortable) to 86% (very humid) over the course of a typical October, rarely dropping below 16% (dry) and reaching as high as 100% (very humid).
The air is driest around October 1, at which time the relative humidity drops below 36% (comfortable) three days out of four; it is most humid around October 31, rising above 77% (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 27°F (dry) to 41°F (dry) and is rarely below 19°F (dry) or above 49°F (dry).
Over the course of October typical wind speeds vary from 0 mph to 8 mph (calm to gentle breeze), rarely exceeding 13 mph (moderate breeze).
The highest average wind speed of 4 mph (light breeze) occurs around October 1, at which time the average daily maximum wind speed is 8 mph (gentle breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around October 31, at which time the average daily maximum wind speed is 7 mph (light breeze).