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Methane (CH₄) in 1996 (global mean)
Annual mean1,751.3 ppb
vs previous year+2.4 ppb
Rank of increase34 / 41
Max − min within year18.0 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 1,752.2 ppb | +1.1 |
| Feb | 1,752.7 ppb | +3.2 |
| Mar | 1,752.2 ppb | +3.3 |
| Apr | 1,749.6 ppb | +0.2 |
| May | 1,748.3 ppb | +0.6 |
| Jun | 1,746.0 ppb | +3.2 |
| Jul | 1,742.0 ppb | +1.9 |
| Aug | 1,744.3 ppb | +0.7 |
| Sep | 1,752.6 ppb | +2.8 |
| Oct | 1,758.9 ppb | +4.5 |
| Nov | 1,760.1 ppb | +4.5 |
| Dec | 1,756.9 ppb | +3.1 |
+10.4 ppb
+10.5 ppb
+1.1 ppb
+5.6 ppb
+6.7 ppb
+2.4 ppb
+3.3 ppb
+11.1 ppb
+6.7 ppb
+0.9 ppb
-1.9 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.