Average Weather in San Francisco Tláloc Mexico
In San Francisco Tláloc, the wet season is overcast, the dry season is partly cloudy, and it is comfortable year round. Over the course of the year, the temperature typically varies from 41°F to 76°F and is rarely below 35°F or above 82°F.
Based on the tourism score, the best time of year to visit San Francisco Tláloc for warm-weather activities is from late March to late May.
The warm season lasts for 2.4 months, from March 26 to June 7, with an average daily high temperature above 74°F. The hottest day of the year is May 9, with an average high of 76°F and low of 51°F.
The cool season lasts for 2.3 months, from November 24 to February 4, with an average daily high temperature below 69°F. The coldest day of the year is January 12, with an average low of 41°F and high of 67°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In San Francisco Tláloc, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year in San Francisco Tláloc begins around October 30 and lasts for 6.9 months, ending around May 27. On February 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 31% of the time.
The cloudier part of the year begins around May 27 and lasts for 5.1 months, ending around October 30. On September 14, the cloudiest day of the year, the sky is overcast or mostly cloudy 89% of the time, and clear, mostly clear, or partly cloudy 11% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Francisco Tláloc varies very significantly throughout the year.
The wetter season lasts 4.7 months, from May 22 to October 12, with a greater than 41% chance of a given day being a wet day. The chance of a wet day peaks at 78% on July 3.
The drier season lasts 7.3 months, from October 12 to May 22. The smallest chance of a wet day is 4% on December 24.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 78% on July 3.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. San Francisco Tláloc experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 7.7 months, from March 31 to November 20, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 30, with an average total accumulation of 5.7 inches.
The rainless period of the year lasts for 4.3 months, from November 20 to March 31. The least rain falls around December 17, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The length of the day in San Francisco Tláloc varies over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 58 minutes of daylight; the longest day is June 21, with 13 hours, 18 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:28 AM on March 31, and the latest sunrise is 1 hour, 4 minutes later at 7:32 AM on October 27. The earliest sunset is at 5:54 PM on November 25, and the latest sunset is 2 hours, 22 minutes later at 8:16 PM on July 5.
Daylight saving time (DST) is observed in San Francisco Tláloc during 2018, starting in the spring on April 1, lasting 6.8 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in San Francisco Tláloc, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in San Francisco Tláloc experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.6 months, from January 4 to April 21, with average wind speeds of more than 5.2 miles per hour. The windiest day of the year is March 7, with an average hourly wind speed of 5.9 miles per hour.
The calmer time of year lasts for 8.5 months, from April 21 to January 4. The calmest day of the year is May 20, with an average hourly wind speed of 4.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in San Francisco Tláloc varies throughout the year.
The wind is most often from the east for 3.9 months, from June 1 to September 27, with a peak percentage of 69% on July 24. The wind is most often from the north for 2.2 months, from September 27 to December 2, with a peak percentage of 45% on October 11. The wind is most often from the south for 6.0 months, from December 2 to June 1, with a peak percentage of 37% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in San Francisco Tláloc throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Francisco Tláloc for general outdoor tourist activities is from late March to late May, with a peak score in the last week of April.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Francisco Tláloc for hot-weather activities is from late March to late May, with a peak score in the last week of April.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
While it does not do so every year, freezing temperatures are seen in San Francisco Tláloc over some winters. The day least likely to be in the growing season is January 7, with a 53% chance.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in San Francisco Tláloc should appear around January 17, only rarely appearing before January 14 or after January 21.
Growing Degree Days
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 2.9 months, from March 6 to June 2, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is April 18, with an average of 7.3 kWh.
The darker period of the year lasts for 2.5 months, from November 10 to January 24, with an average daily incident shortwave energy per square meter below 5.5 kWh. The darkest day of the year is December 22, with an average of 5.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of San Francisco Tláloc are 19.370 deg latitude, -98.477 deg longitude, and 7,884 ft elevation.
The topography within 2 miles of San Francisco Tláloc contains significant variations in elevation, with a maximum elevation change of 623 feet and an average elevation above sea level of 7,818 feet. Within 10 miles contains significant variations in elevation (3,015 feet). Within 50 miles contains large variations in elevation (13,727 feet).
The area within 2 miles of San Francisco Tláloc is covered by cropland (96%), within 10 miles by cropland (60%) and shrubs (30%), and within 50 miles by cropland (43%) and trees (18%).
This report illustrates the typical weather in San Francisco Tláloc, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in San Francisco Tláloc.
For each station, the records are corrected for the elevation difference between that station and San Francisco Tláloc according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at San Francisco Tláloc is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Francisco Tláloc and a given station.
The stations contributing to this reconstruction are: Hermanos Serdán International Airport (65%, 26 kilometers, southeast); Benito Juárez International Airport (21%, 63 kilometers, west); and Tulancingo (14%, 80 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .