Is water vapour formation possible at -10 degree celcius?

Under any pressure conditions is it possible ? If not then is there no water vapour present in places where temperature drops to -10 degree celcius ?

• Yes it is possible, albeit to a little extent. – Ivan Neretin Aug 31 '18 at 6:21
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As @Ivan Neretin comments just a little. At $-10$ C the vapour pressure is $\approx 260$ Pa (Pascal) where $1\text{ atm} = 101325$ Pa. Even at $-100$ C there is some absolutely minute amount, $0.0014$ Pa.
The reason is that there is still some energy around even at these low temperatures. The chance (probability) that there is enough energy to propel a molecule into the gas phase, decreases, of course, as the temperature falls. It does so very rapidly as it is given by the Boltzmann distribution which decrease exponentially with energy at any fixed temperature.; $prob(E)\sim \exp(-E/(k_BT))$ where $E$ is the energy/ molecule needed to put the molecule into the gas phase and $k_B$ the Boltzmann constant.