Average Weather in Romero de Guzmán Mexico
In Romero de Guzmán, the wet season is overcast, the dry season is partly cloudy, and it is warm year round. Over the course of the year, the temperature typically varies from 45°F to 89°F and is rarely below 39°F or above 94°F.
Based on the tourism score, the best time of year to visit Romero de Guzmán for warm-weather activities is from early April to early June.
The hot season lasts for 2.0 months, from April 8 to June 8, with an average daily high temperature above 86°F. The hottest day of the year is May 9, with an average high of 89°F and low of 58°F.
The cool season lasts for 2.3 months, from November 26 to February 6, with an average daily high temperature below 78°F. The coldest day of the year is January 8, with an average low of 45°F and high of 75°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 Romero de Guzmán, 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 Romero de Guzmán begins around October 27 and lasts for 7.4 months, ending around June 9. On February 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around June 9 and lasts for 4.5 months, ending around October 27. On September 3, 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 Romero de Guzmán varies very significantly throughout the year.
The wetter season lasts 3.9 months, from June 7 to October 4, with a greater than 37% chance of a given day being a wet day. The chance of a wet day peaks at 73% on July 15.
The drier season lasts 8.1 months, from October 4 to June 7. The smallest chance of a wet day is 1% on April 5.
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 73% on July 15.
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. Romero de Guzmán experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 8.9 months, from May 8 to February 5, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 7, with an average total accumulation of 6.0 inches.
The rainless period of the year lasts for 3.1 months, from February 5 to May 8. The least rain falls around April 11, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The length of the day in Romero de Guzmán varies over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 55 minutes of daylight; the longest day is June 21, with 13 hours, 21 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:43 AM on March 31, and the latest sunrise is 1 hour, 5 minutes later at 7:48 AM on October 27. The earliest sunset is at 6:07 PM on November 25, and the latest sunset is 2 hours, 25 minutes later at 8:32 PM on July 4.
Daylight saving time (DST) is observed in Romero de Guzmán 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 Romero de Guzmán, 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 Romero de Guzmán experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.2 months, from December 24 to May 29, with average wind speeds of more than 5.1 miles per hour. The windiest day of the year is March 24, with an average hourly wind speed of 6.0 miles per hour.
The calmer time of year lasts for 6.8 months, from May 29 to December 24. The calmest day of the year is July 26, with an average hourly wind speed of 4.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Romero de Guzmán varies throughout the year.
The wind is most often from the east for 5.1 months, from July 17 to December 19, with a peak percentage of 55% on September 30. The wind is most often from the south for 6.9 months, from December 19 to July 17, with a peak percentage of 36% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Romero de Guzmán 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 Romero de Guzmán for general outdoor tourist activities is from early April to early June, with a peak score in the second week of May.
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 Romero de Guzmán for hot-weather activities is from mid April to early June, with a peak score in the third week of May.
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.
Temperatures in Romero de Guzmán are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season
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 2.5 months, from March 14 to May 30, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is April 25, with an average of 7.5 kWh.
The darker period of the year lasts for 2.5 months, from November 8 to January 24, with an average daily incident shortwave energy per square meter below 5.2 kWh. The darkest day of the year is December 20, with an average of 4.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Romero de Guzmán are 20.030 deg latitude, -102.259 deg longitude, and 5,151 ft elevation.
The topography within 2 miles of Romero de Guzmán contains significant variations in elevation, with a maximum elevation change of 699 feet and an average elevation above sea level of 5,187 feet. Within 10 miles contains significant variations in elevation (3,474 feet). Within 50 miles also contains extreme variations in elevation (10,892 feet).
The area within 2 miles of Romero de Guzmán is covered by trees (64%), cropland (24%), and shrubs (12%), within 10 miles by trees (69%) and cropland (20%), and within 50 miles by trees (49%) and cropland (28%).
This report illustrates the typical weather in Romero de Guzmán, 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 Romero de Guzmán.
For each station, the records are corrected for the elevation difference between that station and Romero de Guzmán 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 Romero de Guzmán is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Romero de Guzmán and a given station.
The stations contributing to this reconstruction are: Guadalajara International Airport (36%, 123 kilometers, northwest); General Francisco J. Mujica International Airport (32%, 131 kilometers, east); and Del Bajío International Airport (31%, 133 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .