Climate TrendsHome › Greenhouse gases › Methane (CH₄)
Methane (CH₄) in 1989 (global mean)
Annual mean1,704.6 ppb
vs previous year+11.3 ppb
Rank of increase8 / 41
Max − min within year15.0 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 1,700.6 ppb | +8.6 |
| Feb | 1,701.1 ppb | +8.6 |
| Mar | 1,702.5 ppb | +11.2 |
| Apr | 1,703.6 ppb | +13.6 |
| May | 1,703.4 ppb | +14.2 |
| Jun | 1,700.2 ppb | +13.0 |
| Jul | 1,698.2 ppb | +12.2 |
| Aug | 1,702.0 ppb | +12.6 |
| Sep | 1,707.2 ppb | +11.1 |
| Oct | 1,710.6 ppb | +9.4 |
| Nov | 1,713.2 ppb | +10.3 |
| Dec | 1,713.2 ppb | +11.3 |
+12.4 ppb
+12.8 ppb
+12.6 ppb
+10.5 ppb
+11.3 ppb
+9.9 ppb
+10.4 ppb
+10.5 ppb
+1.1 ppb
+5.6 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.