0 0 No significant weather
1 1 Smoke or haze
2 2 Fog in valley
3 3 Sandstorm, duststorm or blowing snow
4 4 Fog
5 5 Drizzle
6 6 Rain
7 7 Snow or rain and snow mixed
8 8 Shower(s)
9 9 Thunderstorm(s) with or without precipitation
15 15 Missing value
