The provided charts illustrate the variations in average monthly rainfall across Australia, contrasting the data from the previous year with a historical average spanning four decades.
Overall, while fluctuations in monthly rainfall are apparent, the comparison reveals consistency in seasonal trends between the two datasets.
In January, the recorded rainfall reached approximately 80 mm, superseding the 40-year average of 70 mm. February witnessed a significant decrease, with last year’s figure at around 20 mm, considerably lower than the historical average of 60 mm. The subsequent month, March, saw rainfall rise to 100 mm, markedly higher than the average of 60 mm, influenced potentially by climatic phenomena such as La Niña. This peak was followed by a substantial decline in April to only 45 mm, just above the 40-year average of 50 mm, illustrating the transitional nature of the Australian climate from summer to autumn. The months of May through July displayed persistently low rainfall levels, with May averaging merely 10 mm, contrasting sharply with averages of 50 mm for both June and July.
In August, rainfall dipped further, with a mere 5 mm recorded, remaining consistent with the historical average of 40 mm. September saw a slight increase to 10 mm, while October rebounded to 60 mm, correlating precisely with the 40-year average. Notably, November and December exhibited significant rainfall increases, culminating in 80 mm and 70 mm respectively, likely due to the onset of the monsoon. The data suggests that while there are year-on-year variances in rainfall, especially during the transitional months, the yearly averages remain comparable to historical norms, indicating stable climatic conditions across Australia.