This report describes the historical weather record at the Lic. Gustavo Díaz Ordaz International Airport (Puerto Vallarta, Mexico) during 2013. This station has records back to April 1990.
Puerto Vallarta has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by forests (67%), oceans and seas (27%), and grasslands (6%)
Daylight saving time (DST) was observed at Puerto Vallarta during 2013. There were two time changes during 2013:
2013 was not a leap year, so it has 365 days and no February 29th. The first leap year before 2013 was 2012 and the first after was 2016.
The summer and winter solstices and the spring and fall equinoxes mark the passing of the seasons. They fall on nearly the same day each year, with differences of a day or two depending on the year. In 2013 they occurred on:
|Spring Equinox||Wednesday, 20 March 2013.|
|Summer Solstice||Friday, 21 June 2013.|
|Fall Equinox||Sunday, 22 September 2013.|
|Winter Solstice||Saturday, 21 December 2013.|
The hottest day of 2013 was November 13, with a high temperature of 95°F. For reference, on that day the average high temperature is 87°F and the high temperature exceeds 89°F only one day in ten. The hottest month of 2013 was August with an average daily high temperature of 90°F.
Relative to the average, the hottest day was March 3. The high temperature that day was 91°F, compared to the average of 80°F, a difference of 11°F. In relative terms the warmest month was March, with an average high temperature of 81°F, compared to an typical value of 81°F.
The longest warm spell was from January 21 to February 12, constituting 23 consecutive days with warmer than average high temperatures. The month of January had the largest fraction of warmer than average days with 74% days with higher than average high temperatures.
The coldest day of 2013 was March 6, with a low temperature of 54°F. For reference, on that day the average low temperature is 62°F and the low temperature drops below 58°F only one day in ten. The coldest month of 2013 was February with an average daily low temperature of 62°F.
Relative to the average, the coldest day was March 6. The low temperature that day was 54°F, compared to the average of 62°F, a difference of 9°F. In relative terms the coldest month was May, with an average low temperature of 69°F, compared to an typical value of 71°F.
The longest cold spell was from February 26 to March 8, constituting 11 consecutive days with cooler than average low temperatures. The month of May had the largest fraction of cooler than average days with 71% days with lower than average low temperatures.
The clearest month of 2013 was March, with 55% of days being more clear than cloudy. The longest spell of clear weather was from February 2 to February 10, constituting 9 consecutive days that were clearer than they were cloudy.
The cloudiest month of 2013 was September, with 93% of days being more cloudy than clear. The longest spell of cloudy weather was from August 18 to September 29, constituting 43 consecutive days that were cloudier than they were clear.
This station provides hourly reports of significant weather events at and around the station, but does not report the quantity of precipitation at the station itself. This is common for weather stations located outside of the United States, and for a small subset of stations in the United States that are located at lesser used and smaller airports.
This station reports when significant weather events (including precipitation) are visually observed at or near the station. Such events do not always correspond to measured quantities of liquid equivalent precipitation, such as when the event is near by not at the station, or in the case of solid precipitation that does not melt in the collection basin.
The day in 2013 with the most precipitation observations was January 1. There were 17 hourly weather reports that day (out of a maximum of 24) in which some form of precipitation was observated at or near the station. The month with the most precipitation observations was September, with 95 hourly present weather reports involving some form of precipitation.
As determined by the present weather reports, the longest dry spell was from January 3 to June 2, constituting 151 consecutive days with no observed precipitation. The months of February, March, April, and May were completely without observed precipitation.
The month with the largest fraction of days with at least some observed precipitation was September, with 67% of days reporting some observed precipitation.
Either snow is exceptionally rare at this location or this station did not reliably report it during 2013.
Humidity is an important factor in determining how weather conditions feel to a person experiencing them. Hot and humid days feel even hotter than hot and dry days because the high level of water content in humid air discourages the evaporation of sweat from a person's skin.
When reading the graph below, keep in mind that the hottest part of the day tends to be the least humid, so the daily low (brown) traces are more relevant for understanding daytime comfort than the daily high (blue) traces, which typically occur during the night. Applying that observation, the least humid month of 2013 was March with an average daily low humidity of 46%, and the most humid month was September with an average daily low humidity of 65%.
But it is important to keep in mind that humidity does not tell the whole picture and the dew point is often a better measure of how comfortable a person will find a given set of weather conditions. Please see the next section for continued discussion of this point.
Dew point is the temperature below which water vapor will condense into liquid water. It is therefore also related to the rate of evaporation of liquid water. Since the evaporation of sweat is an important cooling mechanism for the human body, the dew point is an important measurement for understanding how dry, comfortable, or humid a given set of weather conditions will feel.
Generally speaking, dew points below 50°F will feel a bit dry to some people, but comfortable to people accustomed to dry conditions; dew points from 50°F to 68°F are fairly comfortable to most people, and dew points above 68°F are increasingly uncomfortable, becoming oppressive around 77°F.
To take some examples, and basing our categorization on the daily high dew point in 2013, January had no dry days, 10 comfortable days, and 21 humid days; April had no dry days, 7 comfortable days, and 23 humid days; July had no dry days, no comfortable days, and 31 humid days; and October had no dry days, no comfortable days, and 31 humid days.
The highest sustained wind speed was 70 mph, occurring on July 18; the highest daily mean wind speed was 8 mph (June 14);
The windiest month was June, with an average wind speed of 6 mph. The least windy month was January, with an average wind speed of 3 mph.
Visibility is the maximum distance at which a given reference object or light can be clearly discerned. In the United States, visibilities that are greater than or equal to 10 miles are typically reported as 10 miles.
The day of 2013 with the lowest average visibility was June 3, with an average visibility of 4.9 mi. The month with the lowest average visibility was June, with an average visibility of 10.9 mi. With an average visibility of 13.4 mi, the month of April had the highest average visibility.
The cloud ceiling is the altitude of the lowest layer of clouds that are at categorized as broken (mostly cloudy) or overcast (cloudy). If no such cloud layer exists then the ceiling is unlimited and no value is reported.
The day of 2013 with the lowest average cloud ceiling was October 10, with an average cloud ceiling of 1500'. The month with the lowest average cloud ceiling was June, with an average cloud ceiling of 8954'. The month of January has the highest average cloud ceiling, with an average cloud ceiling of 17189'.