This report describes the historical weather record at the Cleveland Burke Lakefront Airport (Cleveland, Ohio, United States) during 1978. This station has records back to December 1972.
Cleveland, Ohio has a humid continental climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (41%), forests (27%), built-up areas (18%), croplands (8%), and grasslands (7%)
Daylight saving time (DST) was observed at Cleveland, Ohio during 1978. There were two time changes during 1978:
1978 was not a leap year, so it has 365 days and no February 29th. The first leap year before 1978 was 1976 and the first after was 1980.
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 1978 they occurred on:
|Spring Equinox||Monday, 20 March 1978.|
|Summer Solstice||Wednesday, 21 June 1978.|
|Fall Equinox||Saturday, 23 September 1978.|
|Winter Solstice||Friday, 22 December 1978.|
The hottest day of 1978 was July 22, with a high temperature of 94°F. For reference, on that day the average high temperature is 81°F and the high temperature exceeds 88°F only one day in ten. The hottest month of 1978 was August with an average daily high temperature of 80°F.
Relative to the average, the hottest day was April 10. The high temperature that day was 80°F, compared to the average of 56°F, a difference of 24°F. In relative terms the warmest month was September, with an average high temperature of 77°F, compared to an typical value of 73°F.
The longest warm spell was from May 25 to June 3, constituting 10 consecutive days with warmer than average high temperatures. The month of September had the largest fraction of warmer than average days with 67% days with higher than average high temperatures.
The coldest day of 1978 was February 4, with a low temperature of -7°F. For reference, on that day the average low temperature is 23°F and the low temperature drops below 11°F only one day in ten. The coldest month of 1978 was February with an average daily low temperature of 11°F.
Relative to the average, the coldest day was February 4. The low temperature that day was -7°F, compared to the average of 23°F, a difference of 30°F. In relative terms the coldest month was February, with an average low temperature of 11°F, compared to an typical value of 26°F.
The longest cold spell was from January 26 to February 25, constituting 31 consecutive days with cooler than average low temperatures. The month of February had the largest fraction of cooler than average days with 96% days with lower than average low temperatures.
The longest freezing spell was from January 26 to February 25, constituting 31 consecutive days with temperatures strictly below freezing.
The clearest month of 1978 was May, with 10% of days being more clear than cloudy.
The cloudiest month of 1978 was December, with 81% of days being more cloudy than clear. The longest spell of cloudy weather was from January 1 to January 11, constituting 11 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 1978 with the most precipitation observations was January 20. 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 219 hourly present weather reports involving some form of precipitation.
As determined by the present weather reports, the longest dry spell was from July 3 to July 23, constituting 21 consecutive days with no observed precipitation. The month with the largest fraction of days without observed precipitation was July, with 84% 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 84% 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 1978 with the largest number of those reports was April, with a total of 56 reports. The day with the largest number of those reports was March 25, with a total of 13 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 1978 was on November 21; the last was on April 21. The month of 1978 with the largest number of those reports was January, with a total of 200 reports. The day with the largest number of those reports was January 20, with a total of 17 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 1978 was April with an average daily low humidity of 50%, and the most humid month was February with an average daily low humidity of 68%.
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 1978, January had 31 dry days, no comfortable days, and no humid days; April had 24 dry days, 6 comfortable days, and no humid days; July had no dry days, 16 comfortable days, and 15 humid days; and October had 14 dry days, 13 comfortable days, and no humid days.
The highest sustained wind speed was 40 mph, occurring on December 25; the highest daily mean wind speed was 28 mph (January 9); and the highest wind gust speed was 67 mph (January 26).
The windiest month was December, with an average wind speed of 16 mph. The least windy month was February, with an average wind speed of 10 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 1978 with the lowest average visibility was March 23, with an average visibility of 0.2 mi. The month with the lowest average visibility was January, with an average visibility of 6.0 mi. With an average visibility of 13.9 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 1978 with the lowest average cloud ceiling was May 27, with an average cloud ceiling of 49'. The month with the lowest average cloud ceiling was January, with an average cloud ceiling of 3548'. The month of April has the highest average cloud ceiling, with an average cloud ceiling of 10537'.