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Carbon dioxide (CO₂) in 1984 (global mean)
Annual mean344.07 ppm
vs previous year+1.54 ppm
Rank of increase34 / 46
Max − min within year3.20 ppm
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 344.32 ppm | +1.95 |
| Feb | 344.82 ppm | +2.08 |
| Mar | 344.96 ppm | +1.92 |
| Apr | 345.19 ppm | +1.68 |
| May | 345.33 ppm | +1.49 |
| Jun | 344.57 ppm | +1.07 |
| Jul | 343.20 ppm | +1.06 |
| Aug | 342.21 ppm | +1.59 |
| Sep | 342.13 ppm | +1.60 |
| Oct | 342.99 ppm | +1.24 |
| Nov | 344.16 ppm | +1.33 |
| Dec | 345.00 ppm | +1.51 |
+2.06 ppm
+1.19 ppm
+0.75 ppm
+1.67 ppm
+1.54 ppm
+1.46 ppm
+1.43 ppm
+1.71 ppm
+2.48 ppm
+1.63 ppm
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.