This report describes the typical weather at the Perry Stokes Airport (Trinidad, Colorado, United States) weather station over the course of an average year. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Trinidad, Colorado has a cold semi-arid steppe climate. The area within 25 mi of this station is covered by shrublands (60%), forests (20%), and grasslands (20%).
Over the course of a year, the temperature typically varies from 18°F to 89°F and is rarely below 4°F or above 95°F.
The warm season lasts from June 4 to September 12 with an average daily high temperature above 80°F. The hottest day of the year is July 10, with an average high of 89°F and low of 60°F.
The cold season lasts from November 20 to February 25 with an average daily high temperature below 53°F. The coldest day of the year is December 30, with an average low of 18°F and high of 44°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 9:37 hours of daylight; the longest day is June 20 with 14:43 hours of daylight.
The earliest sunrise is at 5:36am on June 13 and the latest sunset is at 8:22pm on June 28. The latest sunrise is at 7:24am on November 3 and the earliest sunset is at 4:39pm on December 8.
Daylight saving time (DST) is observed in this location during 2012, starting in the spring on March 11 and ending in the fall on November 4.
The median cloud cover ranges from 3% (clear) to 23% (mostly clear). The sky is cloudiest on July 25 and clearest on October 22. The clearer part of the year begins around September 5. The cloudier part of the year begins around February 24.
On October 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 24% of the time.
On July 25, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 36% of the time, and clear or mostly clear 55% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around July 28, occurring in 50% of days. Precipitation is least likely around October 23, occurring in 20% of days.
Over the entire year, the most common forms of precipitation are thunderstorms, light snow, and light rain.
Thunderstorms are the most severe precipitation observed during 47% of those days with precipitation. They are most likely around July 23, when it is observed during 43% of all days.
Light snow is the most severe precipitation observed during 27% of those days with precipitation. It is most likely around February 11, when it is observed during 18% of all days.
Light rain is the most severe precipitation observed during 13% of those days with precipitation. It is most likely around May 7, when it is observed during 8% of all days.
During the warm season, which lasts from June 4 to September 12, there is a 44% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (82% of days with precipitation have at worst thunderstorms) and light rain (12%).
During the cold season, which lasts from November 20 to February 25, there is a 24% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light snow (69% of days with precipitation have at worst light snow) and moderate snow (21%).
The likelihood of snow falling is highest around February 15, occurring in 23% of days. The season in which it is relatively likely for snow to fall spans from October 18 to May 4.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 22% (dry) to 81% (humid) over the course of the year, rarely dropping below 9% (very dry) and reaching as high as 100% (very humid).
The air is driest around June 26, at which time the relative humidity drops below 28% (dry) three days out of four; it is most humid around December 16, exceeding 71% (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 year, the dew point typically varies from 7°F (dry) to 56°F (comfortable) and is rarely below -6°F (dry) or above 61°F (comfortable).
The time of the year between June 19 and September 8 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of the year typical wind speeds vary from 0 mph to 21 mph (calm to fresh breeze), rarely exceeding 31 mph (high wind).
The highest average wind speed of 11 mph (gentle breeze) occurs around April 9, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around December 13, at which time the average daily maximum wind speed is 16 mph (moderate breeze).