This report describes the typical weather at the Lic. Adolfo López Mateos International Airport (Toluca, Mexico) weather station over the course of an average year. It is based on the historical records from 1991 to 2012. Earlier records are either unavailable or unreliable.
Toluca has a mild temperate climate with dry winters and warm summers. The area within 25 mi of this station is covered by forests (55%), grasslands (18%), shrublands (17%), croplands (7%), and built-up areas (2%).
Over the course of a year, the temperature typically varies from 32°F to 76°F and is rarely below 27°F or above 81°F.
The warm season lasts from March 24 to June 5 with an average daily high temperature above 74°F. The hottest day of the year is April 30, with an average high of 76°F and low of 44°F.
The cold season lasts from December 6 to February 7 with an average daily high temperature below 68°F. The coldest day of the year is January 3, with an average low of 32°F and high of 67°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 10:58 hours of daylight; the longest day is June 20 with 13:18 hours of daylight.
The earliest sunrise is at 6:32am on March 31 and the latest sunset is at 8:21pm on July 5. The latest sunrise is at 7:38am on October 27 and the earliest sunset is at 5:58pm on November 23.
Daylight savings time (DST) is observed in this location during 2012, starting in the spring on April 1 and ending in the fall on October 28.
The median cloud cover ranges from 29% (mostly clear) to 91% (mostly cloudy). The sky is cloudiest on September 10 and clearest on February 4. The clearer part of the year begins around November 2. The cloudier part of the year begins around May 1.
On February 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 59% of the time, and overcast or mostly cloudy 22% of the time.
On September 10, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 72% of the time, and clear or mostly clear 6% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around July 30, occurring in 83% of days. Precipitation is least likely around December 23, occurring in 14% of days.
Over the entire year, the most common forms of precipitation are thunderstorms, moderate rain, and light rain.
Thunderstorms are the most severe precipitation observed during 52% of those days with precipitation. They are most likely around July 29, when it is observed during 51% of all days.
Moderate rain is the most severe precipitation observed during 23% of those days with precipitation. It is most likely around June 22, when it is observed during 16% of all days.
Light rain is the most severe precipitation observed during 22% of those days with precipitation. It is most likely around September 10, when it is observed during 19% of all days.
During the warm season, which lasts from March 24 to June 5, there is a 47% 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 (55% of days with precipitation have at worst thunderstorms), moderate rain (25%), and light rain (18%).
During the cold season, which lasts from December 6 to February 7, there is a 15% 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 moderate rain (36% of days with precipitation have at worst moderate rain), light rain (33%), thunderstorms (21%), and drizzle (9%).
Either snow is exceptionally unlikely to fall at any time during the year at this location or this station does not reliably report precipitation types.
The relative humidity typically ranges from 24% (dry) to 97% (very humid) over the course of the year, rarely dropping below 11% (very dry) and reaching as high as 100% (very humid).
The air is driest around March 11, at which time the relative humidity drops below 31% (comfortable) three days out of four; it is most humid around September 2, exceeding 95% (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 year, the dew point typically varies from 26°F (dry) to 56°F (comfortable) and is rarely below 13°F (dry) or above 58°F (comfortable).
The time of the year between May 11 and November 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 16 mph (calm to moderate breeze), rarely exceeding 22 mph (fresh breeze).
The highest average wind speed of 5 mph (light breeze) occurs around April 11, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 3 mph (light air) occurs around December 21, at which time the average daily maximum wind speed is 13 mph (moderate breeze).