The wind is most often from the north for 2.0 months, from December 21 to February 20, with a peak percentage of 39% on January 1.

Monthly: 1981-2010 normals History: 2007-2019 Oklahoma is no stranger to climatic extremes of flood and drought. In the panhandle the daytime swing is more dramatic, with westerly winds prevailing. Average Weather in Oklahoma City Oklahoma, United States. The value generally decreases to about 195 days in the eastern panhandle, then more rapidly to 175 in the western panhandle. The highest temperature ever recorded in the state was 120 F. This reading was first observed during the brutally hot summer of 1936: at Alva on July 18, at Altus on July 19 and August 12, and at Poteau on August 10. © 2020 USATODAY, a division of Gannett Satellite Information Network, Inc. Oklahoma Climatological Survey: The Climate of Oklahoma, Library of Congress: The Dust Bowl of Oklahoma, Privacy Notice/Your California Privacy Rights, Attribution: Greater Oklahoma City Chamber and Oklahoma City Convention and Visitors Bureau (CVB) (uploaded by Chamber employee Lillie-Beth Brinkman lbrinkman@okcchamber.com); License: Creative Commons. The largest of these struck southwestern and southern portions of the Oklahoma City metropolitan area, destroying nearly 1,000 homes and inflicting over one billion dollars in damages. Annual average precipitation varies from 56 inches in the extreme southeast to 17 inches in the western panhandle. Autumn freezes have occurred as early as about September 15 in the western third of the state to about October 15 in the southeast corner. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. The annual fraction of possible sunshine observed ranges from about 45 percent in eastern Oklahoma to near 65 percent in the panhandle. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Temperatures of 32 F or less occur, on average, about 60 days per year in the southeast. The general northwest-to-southeast gradient is interrupted in the Ouachita Mountains, where growing seasons are three to four weeks shorter compared to surrounding areas. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Wintertime precipitation tends to be somewhat widespread, stratiform in nature, and tied almost exclusively to synoptic-scale systems. In the northeast, this secondary maximum can be nearly the same magnitude as the springtime maximum. This maximum shifts from afternoon hours in western Oklahoma to late afternoon and early evening in eastern Oklahoma because severe weather is often associated with surface boundaries that move west-to-east during the afternoon.

Frequent frontal invasions and dry line development combined with favorable upper-level support make springtime the preferred season for violent thunderstorms, although they can occur at any time of year. Summertime precpitation is almost entirely convective in nature, produced by mesoscale complexes and garden-variety thunderstorms. The character of precipitation also varies by season. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than.

The annual rate increases to near 60 in the extreme western panhandle. Time zones for airports and weather stations are provided by AskGeo.com . Thunderstorms occur, on average, about 55 days per year in the east, decreasing to about 45 days per year in the southwest. Oklahoma packs a significant amount of climate variation into its 69,919 square miles. The wetter season lasts 5.6 months, from April 8 to September 27, with a greater than 25% chance of a given day being a wet day.

The state is largely reliant on rainfall for its usable water, meaning drought can occur relatively quickly, particularly in the west where precipitation is low. On October 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time. Annual Weather Summary … Overall, the state’s climate is heavily influenced by moisture blown from the … In 2020, the shortest day is December 21, with 9 hours, 46 minutes of daylight; the longest day is June 20, with 14 hours, 33 minutes of daylight. These events tend to be nocturnal in nature. Principal tributaries of the Arkansas are the Verdigris, Grand (Neosho), Illinois, Cimarron, Canadian and North Canadian. Amounts up to 20 inches in a day have also been reported from non-standard sources. Each of these episodes contained at least one year of above-normal rainfall. She began writing in 2002 and her work has appeared in several academic journals including "Memory Studies," the "Journal of Historical Geography" and the "Local Historian." Drought episodes can last from a few months to … The least muggy day of the year is December 21, when muggy conditions are essentially unheard of. Flash flooding of creeks and minor streams remains a serious threat, especially in urban and suburban areas, where development and removal of vegetation have increased runoff.

It is is the prediction of weather for up to a maximum of 6 hours ahead. The two main rivers in the state are the Arkansas, which drains the northern two-thirds of the state, and the Red, which drains the southern third and serves as the state's southern border. Since 1950, an average of 54 tornadoes have been observed annually within the state's borders. These fractions are highest in the summer and lowest in the winter for all portions of the state. The percentage of time spent in various temperature bands. Based on the beach/pool score, the best time of year to visit Oklahoma City for hot-weather activities is from mid June to early September. The thin dotted line is the corresponding average rainfall. The lowest temperature on record is -27 F, set originally at Vinita on February 13, 1905, and tied at Watts on January 18, 1930. Oklahoma lies entirely within the drainage basin of the Mississippi River. The chance of a wet day peaks at 40% on June 3. The shaded overlays indicate night and civil twilight. The smallest chance of a wet day is 10% on January 16. The winter wind regime is bimodal, with roughly equal split between northerly and southerly winds. On the average, cloudiness increases from west to east in Oklahoma. About 80 percent of tornadoes are observed between noon and midnight Central Standard Time, with the peak hours being between 4 pm and 8 pm. These hilly areas include the Wichita Mountains in the southwest, and the Arbuckle Mountains in the south-central. Therefore, drought in Oklahoma is tied almost entirely to local rainfall patterns (i.e., the influence of upstream events on drought is very small). Average temperatures for March at cities, towns, parks and lakes throughout Oklahoma are listed below in degrees Fahrenheit and Celsius. The southwest can expect 115 days with a temperature above 100 F each year. The calmest day of the year is August 11, with an average hourly wind speed of 9.0 miles per hour. In northern Oklahoma, the last freeze of spring occurs, on average, from about April 8 near the Missouri border to April 15 in the eastern panhandle to the last week of April in the western panhandle. The average hourly temperature, color coded into bands. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

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