This report describes the historical weather record at the Idaho Falls Regional Airport (Idaho Falls, United States) during 1953. This station has records back to January 1948.
Idaho Falls, Idaho has a cold semi-arid steppe climate. The area within 25 mi of this station is covered by croplands (38%), forests (22%), shrublands (21%), and grasslands (19%)
Daylight saving time (DST) was not observed at Idaho Falls, Idaho during 1953.
1953 was not a leap year, so it has 365 days and no February 29th. The first leap year before 1953 was 1952 and the first after was 1956.
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 1953 they occurred on:
|Spring Equinox||Friday, 20 March 1953.|
|Summer Solstice||Sunday, 21 June 1953.|
|Fall Equinox||Wednesday, 23 September 1953.|
|Winter Solstice||Tuesday, 22 December 1953.|
The hottest day of 1953 was July 12, with a high temperature of 98°F. For reference, on that day the average high temperature is 85°F and the high temperature exceeds 93°F only one day in ten. The hottest month of 1953 was July with an average daily high temperature of 87°F.
Relative to the average, the hottest day was February 3. The high temperature that day was 53°F, compared to the average of 29°F, a difference of 24°F. In relative terms the warmest month was January, with an average high temperature of 38°F, compared to an typical value of 28°F.
The longest warm spell was from January 6 to February 11, constituting 37 consecutive days with warmer than average high temperatures. The month of January had the largest fraction of warmer than average days with 90% days with higher than average high temperatures.
The coldest day of 1953 was December 27, with a low temperature of -1°F. For reference, on that day the average low temperature is 11°F and the low temperature drops below -5°F only one day in ten. The coldest month of 1953 was December with an average daily low temperature of 14°F.
Relative to the average, the coldest day was February 20. The low temperature that day was 1°F, compared to the average of 19°F, a difference of 17°F. In relative terms the coldest month was May, with an average low temperature of 36°F, compared to an typical value of 40°F.
The longest cold spell was from April 6 to April 16, constituting 11 consecutive days with cooler than average low temperatures. The month of May had the largest fraction of cooler than average days with 87% days with lower than average low temperatures.
The longest freezing spell was from December 22 to December 31, constituting 10 consecutive days with temperatures strictly below freezing.
The clearest month of 1953 was September, with 67% of days being more clear than cloudy. The longest spell of clear weather was from June 29 to July 8, constituting 10 consecutive days that were clearer than they were cloudy.
The cloudiest month of 1953 was January, with 90% of days being more cloudy than clear. The longest spell of cloudy weather was from November 30 to December 17, constituting 18 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 1953 with the most precipitation observations was April 28. 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 January, with 110 hourly present weather reports involving some form of precipitation.
As determined by the present weather reports, the longest dry spell was from September 18 to October 15, constituting 28 consecutive days with no observed precipitation. The month with the largest fraction of days without observed precipitation was July, 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 January, with 55% 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 1953 with the largest number of those reports was May, with a total of 50 reports. The day with the largest number of those reports was April 28, with a total of 16 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 1953 was on October 20; the last was on May 24. The month of 1953 with the largest number of those reports was December, with a total of 88 reports. The day with the largest number of those reports was March 1, with a total of 15 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 1953 was August with an average daily low humidity of 22%, and the most humid month was December with an average daily low humidity of 72%.
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 1953, 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 9 dry days, 22 comfortable days, and no humid days; and October had 31 dry days, no comfortable days, and no humid days.
The highest sustained wind speed was 46 mph, occurring on April 23; the highest daily mean wind speed was 27 mph (February 9);
The windiest month was February, with an average wind speed of 15 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 1953 with the lowest average visibility was January 4, with an average visibility of 1.6 mi. The month with the lowest average visibility was December, with an average visibility of 20.0 mi. With an average visibility of 42.1 mi, the month of July had the highest average visibility.
This station did not reliably report the cloud ceiling during 1953.