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Methane (CH₄) in 2006 (global mean)
Annual mean1,775.0 ppb
vs previous year+0.7 ppb
Rank of increase38 / 41
Max − min within year15.8 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 1,779.6 ppb | +3.4 |
| Feb | 1,779.5 ppb | +3.7 |
| Mar | 1,777.3 ppb | +1.8 |
| Apr | 1,776.0 ppb | +1.2 |
| May | 1,774.9 ppb | +2.4 |
| Jun | 1,769.2 ppb | +0.4 |
| Jul | 1,764.2 ppb | -2.2 |
| Aug | 1,767.2 ppb | -0.9 |
| Sep | 1,774.6 ppb | +1.4 |
| Oct | 1,778.2 ppb | -0.3 |
| Nov | 1,779.1 ppb | -2.2 |
| Dec | 1,779.9 ppb | -0.4 |
-1.9 ppb
+1.4 ppb
+4.6 ppb
-0.2 ppb
-2.8 ppb
+0.7 ppb
+6.4 ppb
+5.7 ppb
+6.5 ppb
+5.4 ppb
+4.1 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.