Sometimes, droughts (such as in the summer of 1998) or floods (such as in May 2015) can occur. In fact, we are in the heart of "Tornado Alley". Oklahoma City is particularly subject to the phenomenon of tornadoes, which generally develop in the April-June period, and more rarely in autumn. Cold air outbreaks, with nighttime temperatures below freezing, are more likely in March and November, while heat waves are more likely in May and September. However, there are also stable and pleasant periods.
In spring and autumn, from March to May and from mid-September to the end of November, the collision between air masses can give rise to thunderstorms, sometimes accompanied by hail, gusts of wind and sudden changes of temperature. In 2011, scorching heat lasted a long time, and the average maximum temperature was 40 ☌ (104 ☏) in July and 39.9 ☌ (103.8 ☏) in August. The record heat is 45 ☌ (113 ☏), set in August 2012. On the hottest days of the year, the temperature reaches 40/41 ☌ (104/106 ☏). Typically, the temperature reaches or exceeds 38 ☌ (100 ☏) for 13 days a year.
The summer, from June to mid-September, is very hot and sunny, with some thunderstorms. The coldest record is -25.5 ☌ (-14 ☏), set in February 2021. On the coldest nights of the year, the temperature typically drops to around -15 ☌ (5 ☏). On average, there are 7 icing days (that is, on which the air temperature does not go above freezing), and this can happen from November through March. The most abundant snowfall that occurred in one day was of 34 cm (13.5 in), in December 2009. On average, 17 cm (6.7 in) of snow fall per year. In fact, there are periods in which the temperature can exceed 20 ☌ (68 ☏), and sometimes 25 ☌ (77 ☏), even in the middle of winter, but also irruptions of cold air, with intense frosts and possible snowfalls. The winter, from December to February, is quite cold, but above all it is characterized by the alternation of mild and cold periods. Oklahoma City - Average precipitation Month
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