This report describes the historical weather record at the El Paso International Airport (El Paso, Texas, United States) during 1969. This station has records back to February 1948.
El Paso, Texas has a cold desert climate. The area within 25 mi of this station is covered by shrublands (88%), grasslands (5%), forests (5%), and built-up areas (3%)
Daylight saving time (DST) was observed at El Paso, Texas during 1969. There were two time changes during 1969:
1969 was not a leap year, so it has 365 days and no February 29th. The first leap year before 1969 was 1968 and the first after was 1972.
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 1969 they occurred on:
|Spring Equinox||Thursday, 20 March 1969.|
|Summer Solstice||Saturday, 21 June 1969.|
|Fall Equinox||Tuesday, 23 September 1969.|
|Winter Solstice||Monday, 22 December 1969.|
The hottest day of 1969 was June 28, with a high temperature of 103°F. For reference, on that day the average high temperature is 97°F and the high temperature exceeds 103°F only one day in ten. The hottest month of 1969 was August with an average daily high temperature of 96°F.
Relative to the average, the hottest day was December 22. The high temperature that day was 73°F, compared to the average of 56°F, a difference of 17°F. In relative terms the warmest month was August, with an average high temperature of 96°F, compared to an typical value of 92°F.
The longest warm spell was from July 29 to August 26, constituting 29 consecutive days with warmer than average high temperatures. The month of August had the largest fraction of warmer than average days with 81% days with higher than average high temperatures.
The coldest day of 1969 was January 5, with a low temperature of 23°F. For reference, on that day the average low temperature is 32°F and the low temperature drops below 23°F only one day in ten. The coldest month of 1969 was February with an average daily low temperature of 37°F.
Relative to the average, the coldest day was March 13. The low temperature that day was 25°F, compared to the average of 43°F, a difference of 18°F. In relative terms the coldest month was March, with an average low temperature of 38°F, compared to an typical value of 43°F.
The longest cold spell was from March 2 to March 19, constituting 18 consecutive days with cooler than average low temperatures. The month of March had the largest fraction of cooler than average days with 77% days with lower than average low temperatures.
The clearest month of 1969 was June, with 93% of days being more clear than cloudy. The longest spell of clear weather was from September 21 to October 20, constituting 30 consecutive days that were clearer than they were cloudy.
The cloudiest month of 1969 was February, with 14% of days being more cloudy than clear.
This station reports both the quantity of liquid precipitation and categorical observations of precipitation (e.g., moderate rain, or heavy snow). Both are subject to erroneous reports, but the former is particularly prone to false reports, especially ones indicating an excessive quantity of precipitation. Please bear this in mind when reading the extrema reported in this section.
The day with the largest quantity of precipitation was December 3. That day saw 0.240" of liquid (or liquid equivalent) precipitation, compared to a median value of 0.113". The month with the most precipitation was December, with 0.331", compared to a median value of 0.435".
As determined by quantitative measurements, the longest dry spell was from March 23 to May 22, constituting 61 consecutive days with no measured precipitation. The months April and June were completely without measured precipitation.
The month with the largest fraction of days with at least some measured precipitation was October, with 16% of days reporting some measured precipitation.
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 1969 with the most precipitation observations was December 29. There were 6 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 December, with 16 hourly present weather reports involving some form of precipitation.
As determined by the present weather reports, the longest dry spell was from April 11 to May 13, constituting 33 consecutive days with no observed precipitation. The month with the largest fraction of days without observed precipitation was April, with 97% of days reporting no observed precipitation at all.
The month with the largest fraction of days with at least some observed precipitation was July, with 32% of days reporting some observed precipitation.
In this section we consider only those weather reports that indicate liquid precipitation. For the purposes of this analysis, we include thunderstorms even though some thunderstorms are not accompanied by liquid precipitation.
The month of 1969 with the largest number of those reports was July, with a total of 13 reports. The day with the largest number of those reports was December 3, with a total of 4 reports.
This station reports when snow is observed falling but does not report the quantity of snow that has fallen or the depth of snow on the ground.
In this section we consider hourly weather reports that contain an observation of falling snow. These reports do not necessarily correspond to accumulation.
The first reported snow fall in 1969 was on November 27; the last was on March 15. The month of 1969 with the largest number of those reports was November, with a total of 9 reports. The day with the largest number of those reports was December 29, with a total of 6 reports.
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 1969 was April with an average daily low humidity of 12%, and the most humid month was January with an average daily low humidity of 31%.
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 1969, January had 31 dry days, no comfortable days, and no humid days; April had 30 dry days, no comfortable days, and no humid days; July had no dry days, 31 comfortable days, and no humid days; and October had 21 dry days, 10 comfortable days, and no humid days.
The highest sustained wind speed was 40 mph, occurring on March 23; the highest daily mean wind speed was 20 mph (March 23);
The windiest month was June, with an average wind speed of 10 mph. The least windy month was November, with an average wind speed of 5 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 1969 with the lowest average visibility was November 27, with an average visibility of 7.5 mi. The month with the lowest average visibility was December, with an average visibility of 23.0 mi. With an average visibility of 34.2 mi, the month of February had the highest average visibility.
This station did not reliably report the cloud ceiling during 1969.