Barrios Luna reservoir in León.
Image - Libertaddigital.com
Like every month, the AEMET makes a summary of how the weather has behaved. November 2017, if we have to summarize it in two words, would undoubtedly be these: very dry. Rainfall was so low that reservoirs were even 4% of their capacity in many parts of the northwest of the peninsula, and up to 30% in the south and southeast of the country.
The situation was so dramatic that in many areas there was talk of restrictions. Water restrictions, for livestock and for agriculture.
86% drier than usual
Yes, gentlemen yes: it rained 86% less than usual taking as a reference period 1981-2010. With accumulated rainfall of 7,8 liters per square meter, it is not surprising that the level of the reservoirs dropped so much. The few rains that fell were collected practically all on the 29th, when a cold front crossed the country from north to south. Although they were generalized, they were also weak and without entry of maritime air.
A normal month in terms of temperatures
The average temperature for the month was 11,7 degrees Celsius, so it's been a normal month. However, the thermal amplitude, that is, the difference between the minimum and the maximum temperature, has been very high in many areas. During the day, for example in many parts of Mallorca, temperatures of 20ºC were reached, but at night it dropped to 8-10ºC.
The coldest days were 9, 14 and 30, with winter values, especially the last days of the month; the warmest were 3, 12 and 24.
This is what November 2017 looks like on video
The European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) publishes a monthly video where we can see the different meteorological events that took place.
This sequence was carried out by combining infrared images from the geostationary satellites of EUMETSAT, NOAA, CMA and JMA, which observe the surface of planet Earth every day. The video is, therefore, a very interesting tool to know how the weather behaved during the month.