The average annual temperature at the Pic du Midi is 0oC, minimum is approx. -35oC, maximum approx. 18oC
725 hPa
714 mBar on average, with a minimum of 680 mBar and a maximum of 740 mBar. At sea level, average pressure is 1014 mBar. Pressure decreases by about 1 mBar every ten metres. So at almost 3000 metres, the average pressure at the Pic du Midi is 1014 minus 300, or 714
60 %
-1 W/m²
minimum 0, maximum around 1200 W/m2. Solar radiation at the Pic is three times that at sea level.
Vitesse vent
14 km/h
Average measured over 10 minutes. Gusts may be a great deal faster. Wind speed at the summit can reach 270 kph.
Direction vent
Concentrations and proportions of gases in the atmosphere are expressed in terms of pbb (parts per billion). This refers to Ozone or O3. The average is 50pbb, with the figure rising in summer. The minimum is about 20pbb, the maximum around 80pbb. Anything over 100/110 pbb could represent a health risk (breathing difficulties, asthma etc). 900 pbb is toxic.
Laboratoire d'Aérologie de l'Observatoire Midi Pyrénées
The Observatoire Midi-Pyrénées is not responsible for any use or interpretation which may be made from this data

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