Here is the full list of all 33 SNOW achievements.
Reach level 10
Accumulate 10,000 points
Spend a total of 300 seconds in the air
Achieve 50 Perfect Landings
Spin a total of 36,000°
Spin a total of 18,000°
Travel a total distance of 1km
Achieve a speed of 160km/h
Achieve 20 Perfect Landings
Achieve a speed of 120km/h
Achieve a speed of 30m/s
Grind for a total of 500 seconds
Grind for a total of 2,000 seconds
Achieve 100 Perfect Landings
Spend a total of 1800 seconds in the air
Spin a total of 14400°
Flip a total of 36,000°
Flip a total of 180,000°
Flip a total of 360,000°
Roll a total of 36,000°
Travel a total distance of 10km
Roll a total of 180,000°
Travel a total distance of 100km
Roll a total of 360,000°
Ride switch a total distance of 25km
Ride switch a total distance of 10km
Ride switch a total distance of 100km
Accumulate 30,000 points
Accumulate 100,000 points
Reach level 30
Reach level 60
Grind for a total of 60 seconds