This report describes the historical weather record at the Will Rogers World Airport (Oklahoma City, United States) during 1972. This station has records back to December 1947.
Oklahoma City, Oklahoma has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by grasslands (78%), croplands (13%), and built-up areas (7%)
Daylight saving time (DST) was observed at Oklahoma City, Oklahoma during 1972. There were two time changes during 1972:
1972 was a leap year and thus has 366 days rather than the normal 365. Leap years occur every fourth year and the extra day is always February 29th. In 1972 February 29th falls on a Tuesday.
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 1972 they occurred on:
|Spring Equinox||Monday, 20 March 1972.|
|Summer Solstice||Wednesday, 21 June 1972.|
|Fall Equinox||Friday, 22 September 1972.|
|Winter Solstice||Thursday, 21 December 1972.|
The hottest day of 1972 was June 27, with a high temperature of 101°F. For reference, on that day the average high temperature is 90°F and the high temperature exceeds 97°F only one day in ten. The hottest month of 1972 was August with an average daily high temperature of 91°F.
Relative to the average, the hottest day was April 12. The high temperature that day was 98°F, compared to the average of 71°F, a difference of 27°F. In relative terms the warmest month was April, with an average high temperature of 75°F, compared to an typical value of 71°F.
The longest warm spell was from May 15 to May 29, constituting 15 consecutive days with warmer than average high temperatures. The month of June had the largest fraction of warmer than average days with 80% days with higher than average high temperatures.
The coldest day of 1972 was January 15, with a low temperature of 1°F. For reference, on that day the average low temperature is 27°F and the low temperature drops below 15°F only one day in ten. The coldest month of 1972 was January with an average daily low temperature of 25°F.
Relative to the average, the coldest day was January 15. The low temperature that day was 1°F, compared to the average of 27°F, a difference of 26°F. In relative terms the coldest month was December, with an average low temperature of 26°F, compared to an typical value of 30°F.
The longest cold spell was from December 3 to December 18, constituting 16 consecutive days with cooler than average low temperatures. The month of November had the largest fraction of cooler than average days with 83% days with lower than average low temperatures.
The clearest month of 1972 was March, with 71% of days being more clear than cloudy. The longest spell of clear weather was from May 30 to June 8, constituting 10 consecutive days that were clearer than they were cloudy.
The cloudiest month of 1972 was November, with 47% of days being more cloudy than clear. The longest spell of cloudy weather was from November 12 to November 22, constituting 11 consecutive days that were cloudier than they were 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 July 2. That day saw 1.280" of liquid (or liquid equivalent) precipitation, compared to a median value of 0.192". The month with the most precipitation was October, with 2.850", compared to a median value of 1.872".
As determined by quantitative measurements, the longest dry spell was from February 12 to March 20, constituting 38 consecutive days with no measured precipitation. The month with the largest fraction of dry days was July, with 97% of days reporting no measured precipitation at all.
The month with the largest fraction of days with at least some measured precipitation was April, with 23% 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 1972 with the most precipitation observations was October 31. There were 8 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 October, with 37 hourly present weather reports involving some form of precipitation.
As determined by the present weather reports, the longest dry spell was from February 25 to March 20, constituting 25 consecutive days with no observed precipitation. The month with the largest fraction of days without observed precipitation was March, with 90% of days reporting no observed precipitation at all.
The month with the largest fraction of days with at least some observed precipitation was November, with 37% 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 1972 with the largest number of those reports was October, with a total of 37 reports. The day with the largest number of those reports was October 31, with a total of 8 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 1972 was on November 18; the last was on February 12. The month of 1972 with the largest number of those reports was January, with a total of 14 reports. The day with the largest number of those reports was January 4, with a total of 5 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 1972 was March with an average daily low humidity of 36%, and the most humid month was December with an average daily low humidity of 57%.
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 1972, January had 31 dry days, no comfortable days, and no humid days; April had 12 dry days, 18 comfortable days, and no humid days; July had no dry days, 17 comfortable days, and 14 humid days; and October had 12 dry days, 19 comfortable days, and no humid days.
The highest sustained wind speed was 35 mph, occurring on January 13; the highest daily mean wind speed was 25 mph (April 26);
The windiest month was March, with an average wind speed of 16 mph. The least windy month was August, with an average wind speed of 9 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 1972 with the lowest average visibility was January 20, with an average visibility of 0.3 mi. The month with the lowest average visibility was October, with an average visibility of 12.9 mi. With an average visibility of 16.5 mi, the month of August had the highest average visibility.
This station did not reliably report the cloud ceiling during 1972.