Climate and Average Weather Year Round in Unión de Tula Mexico

In Unión de Tula, the wet season is humid and overcast, the dry season is partly cloudy, and it is warm year round. Over the course of the year, the temperature typically varies from 44°F to 85°F and is rarely below 38°F or above 88°F.

Based on the tourism score, the best time of year to visit Unión de Tula for warm-weather activities is from late April to early June.

The warm season lasts for 1.7 months, from April 18 to June 10, with an average daily high temperature above 82°F. The hottest month of the year in Unión de Tula is June, with an average high of 81°F and low of 61°F.

The cool season lasts for 2.5 months, from November 24 to February 11, with an average daily high temperature below 75°F. The coldest month of the year in Unión de Tula is January, with an average low of 44°F and high of 73°F.

In Unión de Tula, 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 Unión de Tula begins around October 22 and lasts for 7.7 months, ending around June 14.

The clearest month of the year in Unión de Tula is February, during which on average the sky is clear, mostly clear, or partly cloudy 61% of the time.

The cloudier part of the year begins around June 14 and lasts for 4.3 months, ending around October 22.

The cloudiest month of the year in Unión de Tula is August, during which on average the sky is overcast or mostly cloudy 93% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Unión de Tula varies very significantly throughout the year.

The wetter season lasts 4.0 months, from June 9 to October 9, with a greater than 37% chance of a given day being a wet day. The month with the most wet days in Unión de Tula is August, with an average of 22.5 days with at least 0.04 inches of precipitation.

The drier season lasts 8.0 months, from October 9 to June 9. The month with the fewest wet days in Unión de Tula is April, with an average of 0.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Unión de Tula is August, with an average of 22.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 74% on August 17.

Rainfall

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. Unión de Tula experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from May 16 to February 15, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Unión de Tula is August, with an average rainfall of 7.3 inches.

The rainless period of the year lasts for 3.0 months, from February 15 to May 16. The month with the least rain in Unión de Tula is April, with an average rainfall of 0.0 inches.

The length of the day in Unión de Tula varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 56 minutes of daylight; the longest day is June 20, with 13 hours, 20 minutes of daylight.

The earliest sunrise is at 6:16 AM on June 5, and the latest sunrise is 1 hour, 18 minutes later at 7:34 AM on January 17. The earliest sunset is at 6:16 PM on November 25, and the latest sunset is 1 hour, 24 minutes later at 7:40 PM on July 4.

Daylight saving time (DST) is not observed in Unión de Tula during 2024.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Unión de Tula experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.8 months, from June 2 to October 26, during which time the comfort level is muggy, oppressive, or miserable at least 10% of the time. The month with the most muggy days in Unión de Tula is August, with 12.0 days that are muggy or worse.

The least muggy day of the year is February 17, when muggy conditions are essentially unheard of.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Unión de Tula experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.6 months, from January 26 to June 12, with average wind speeds of more than 4.5 miles per hour. The windiest month of the year in Unión de Tula is April, with an average hourly wind speed of 5.5 miles per hour.

The calmer time of year lasts for 7.4 months, from June 12 to January 26. The calmest month of the year in Unión de Tula is August, with an average hourly wind speed of 3.6 miles per hour.

The predominant average hourly wind direction in Unión de Tula varies throughout the year.

The wind is most often from the west for 6.7 months, from February 7 to August 30 and for 1.9 weeks, from September 10 to September 23, with a peak percentage of 51% on May 29. The wind is most often from the south for 1.6 weeks, from August 30 to September 10, with a peak percentage of 32% on August 31. The wind is most often from the east for 4.4 months, from September 23 to February 7, with a peak percentage of 38% on January 1.

Unión de Tula is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.4 months, from June 26 to November 8, with an average temperature above 84°F. The month of the year in Unión de Tula with the warmest water is August, with an average temperature of 86°F.

The time of year with cooler water lasts for 2.7 months, from February 17 to May 7, with an average temperature below 79°F. The month of the year in Unión de Tula with the coolest water is March, with an average temperature of 78°F.

To characterize how pleasant the weather is in Unión de Tula 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 Unión de Tula for general outdoor tourist activities is from late April to early June, with a peak score in the third 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 Unión de Tula for hot-weather activities is from late April to early June, with a peak score in the third week of May.

Methodology

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.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Unión de Tula 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.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.5 months, from March 15 to May 30, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest month of the year in Unión de Tula is April, with an average of 7.3 kWh.

The darker period of the year lasts for 7.0 months, from June 24 to January 24, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest month of the year in Unión de Tula is December, with an average of 4.5 kWh.

For the purposes of this report, the geographical coordinates of Unión de Tula are 19.956 deg latitude, -104.268 deg longitude, and 4,416 ft elevation.

The topography within 2 miles of Unión de Tula contains very significant variations in elevation, with a maximum elevation change of 1,158 feet and an average elevation above sea level of 4,615 feet. Within 10 miles contains very significant variations in elevation (4,183 feet). Within 50 miles also contains extreme variations in elevation (12,605 feet).

The area within 2 miles of Unión de Tula is covered by cropland (41%), shrubs (33%), and trees (14%), within 10 miles by trees (45%) and cropland (27%), and within 50 miles by trees (51%) and cropland (28%).