How many rainy days are there in Jinan a year?

There are many rainy years and few rainy years.

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Meteorological data have been available in Jinan since 195 1, but some weather conditions are incomplete. In 2007, Jinan Meteorological Bureau compiled the perennial climate data of 197 1-2000. Looking through these records and materials, we can find some extreme weather conditions. If you have experienced it, you can also refer to the materials to recall the scene at that time.

wind

Eight winds are strong winds, which can break branches.

1A hurricane with a magnitude of 12 occurred in Jinan in 1977.

"The wind level we usually talk about is generally only 12." According to experts from Jinan Meteorological Observatory, the wind of level 8 is called gale, which can break twigs. 12 wind, called hurricane, is rare on land and has great destructive power. The wind speed range of 12 hurricane is 32.7-36.9 m/s. According to this standard, the reporter found in the meteorological data that there was a strong wind speed of 34.8 m/s in Jinan on 1977, which belongs to the west wind and reached the standard of hurricane.

However, the data does not record the duration of this wind speed, that is, this wind speed may be fleeting. However, even if it appears in an instant, a hurricane with a magnitude of 12 will roar past, and the scene must be very shocking.

rain

1968 The annual precipitation in the urban area is 320.7mm.

1962 the daily rainfall is 298.4 mm.

Due to the meteorological data of 195 1, the year with the least precipitation in Jinan is 1968, and the sum of all precipitation such as annual rainfall and snowfall is only 320.7 mm ..1July 3, 1962. There was a torrential rain in Jinan with a rainfall of 298.4 mm, which was the total of this year. It is understood that the average annual precipitation from 197 1 to 2000 is 671.7 mm. ..

Speaking of heavy rainfall, the latest heaviest rainfall occurred on July 8, 2007, when the average rainfall in the urban area was 142.2 mm, and the maximum measured rainfall occurred in the municipal government, which was 182.7 mm, which was significantly smaller than the rainfall data in July 1962.

cold

The lowest temperature in Jinan is-19.7℃

Compared with the suburbs, this temperature is not the lowest.

1October 1953- 17, the lowest temperature in Jinan-19.7℃, which is still the lowest temperature in Jinan. According to meteorological data, except Jinan, the lowest temperatures in Shanghe, Zhangqiu, Changqing, Pingyin and Jiyang are below -20℃. The low temperature of -26.8℃ occurred in Zhangqiu1985,65438+February 8, which was the lowest temperature in Jinan 197 1 until 2000. According to the analysis of meteorologists, the temperature in urban areas is higher than that in suburban counties (cities), and part of the "credit" is attributed to the heat island effect.

When it comes to winter, people usually think of snow. In recent years, there are few unforgettable heavy snows in Jinan. 197 1 By 2000, the maximum snow depth in Jinan was 22 cm, which was on19931.20. The maximum snow depth in Jinan occurred in Zhangqiu, which was 1972 65438+ 10/0/0, with a depth of 23 cm.

hot

The highest temperature reached 42.5℃ more than 50 years ago.

The ground temperature in the urban area even reached 69.9℃

Due to the meteorological data of 195 1, the highest recorded temperature in Jinan was 42.5℃, which appeared on July 24th, 1955. So far this year, the highest temperature appeared on June 25th, reaching 4 1.2℃, which is also the highest temperature in Jinan in June since meteorological data were available for 1 and 95 1. The summer heat of June 25, the citizens have experienced it, and many people are hiding in air-conditioned rooms. 1955 The weather with the highest temperature of 42.5℃ on July 24th was even hotter than that on June 25th, and there is no such advance at present. I wonder what people had at that time to cool off the heat?

There is still a gap between the highest temperature and the highest temperature on the ground. 197 1 By 2000, the highest ground temperature in Jinan reached 69.9℃, which appeared on1July 2, 997. In July 1, 1992, the highest ground temperature of 70.3℃ appeared in Pingyin.