Historical Weather For 1. Toronto, Ontario, Canada. Location. This report describes the historical weather record at the Toronto Pearson International Airport (Toronto, Ontario, Canada) during 1. This station has records back to January 1. The area within 2. Daylight saving time (DST) was observed at Toronto, Ontario during 1. There were two time changes during 1. DST started on Sunday April 7, 1. EST (GMT- 5) to EDT (GMT- 4). The first leap year before 1. They fall on nearly the same day each year, with differences of a day or two depending on the year. In 1. 99. 1 they occurred on. Spring Equinox. Thursday, 2. March 1. 99. 1. For reference, on that day the average high temperature is 7. The hottest month of 1. July with an average daily high temperature of 8. The high temperature that day was 8. In relative terms the warmest month was May, with an average high temperature of 7. The month of June had the largest fraction of warmer than average days with 7. The bar at the top of the graph is red where both the daily high and low are above average, blue where they are both below average, and white otherwise. For reference, on that day the average low temperature is 1. The coldest month of 1. January with an average daily low temperature of 1. The low temperature that day was - 6. In relative terms the coldest month was September, with an average low temperature of 4. The month of September had the largest fraction of cooler than average days with 6. The hourly temperature measurement is color coded into meaningful temperature bands: frigid is purple (below 1. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data. The bar at the top of the graph is gray if the sky was cloudy or mostly cloudy for more than half the day, blue if it is clear or mostly clear for more than half the day, and blue- gray otherwise. The longest spell of cloudy weather was from November 2. December 1. 1, constituting 2. The sky cover is color coded: from most blue to most gray, the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data. Brain Teaser time on DU. Latest: Greatest: Lobby: Journals: Search: Options: Help: Login.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. 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. There were 2. 4 hourly weather reports that day (out of a maximum of 2. The month with the most precipitation observations was January, with 2. From the bottom up, the categories are thunderstorms (orange); heavy, moderate, and light snow (dark to light blue); heavy, moderate, and light rain (dark to light green); and drizzle (lightest green). Not all categories are necessarily present in this particular graph. The faint shaded areas indicate climate normals. The bar at the top of the graph is green if any precipitation was observed that day and white otherwise. The month with the largest fraction of days without observed precipitation was June, with 6. The color- coded categories are thunderstorms (orange); heavy, moderate, and light snow (dark to light blue); heavy, moderate, and light rain (dark to light green); drizzle (lightest green); freezing rain and sleet (light and dark cyan); snow grains (lightest blue); hail (red); fog (gray); and haze (brownish gray).
PeterShop > Catalogue > Vladimir Nahabcev > Traces of Rain (Sled dozhdya). For the purposes of this analysis, we include thunderstorms even though some thunderstorms are not accompanied by liquid precipitation. The day with the largest number of those reports was April 2. The bar at the top of the graph is green if any liquid precipitation was observed that day and white otherwise. Both are subject to erroneous reports, but the latter is significantly less reliable. Please bear this in mind when reading this section. These reports do not necessarily correspond to accumulation. The month of 1. 99. Traces of Rain - (Sled dozhdya); dirigida por Vladimir Nakhabtsev Ml. Aleksandr Bobrovsky, Juozas Budraitis. Sugar Maples Sicken Under Acid Rain's Pall Published: May 15, 1991. Acid rain has been a continual source. January, with a total of 1. The day with the largest number of those reports was February 1. The bar at the top of the graph is blue if there was snow fall observed that day and white otherwise. It is rarely reported more often than every six hours, it is often skipped, it is often reported erroneously, and a snow depth of zero is normally not distinguished from a missing report. These issues (particularly the last one) make it hard to collect statistics on snow depth with any confidence. To overcome this issue, we base our statistics on only those reports with present non- zero measurements of snow depth. Reports that fail to mention snow that is present, and reports that do not report snow depth because there is no snow on the ground are excluded because they cannot be distinguished from one another. The last day of the snow season with snow reported on the ground was March 2. The day with the deepest snow depth was January 1. The longest stretch of time during which there was always snow on the ground was from January 1 to January 1. The bar at the top of the graph is blue if there was snow on the ground that day and white otherwise. 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. Applying that observation, the least humid month of 1. June with an average daily low humidity of 4. December with an average daily low humidity of 6. Please see the next section for continued discussion of this point. 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. The least windy month was May, with an average wind speed of 7 mph. In the United States, visibilities that are greater than or equal to 1. The month with the lowest average visibility was February, with an average visibility of 1. With an average visibility of 1. September had the highest average visibility. If no such cloud layer exists then the ceiling is unlimited and no value is reported. The month with the lowest average cloud ceiling was December, with an average cloud ceiling of 5. The month of June has the highest average cloud ceiling, with an average cloud ceiling of 1. Missing data or days with insufficient clouds to define a cloud ceiling are shown as white columns. Sled dozhdya (1. 99.
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