Climate Monitor
Daily global climate snapshot across global near-surface air temperature, global sea-surface temperature, Arctic sea ice extent, and Antarctic sea ice extent. The spider chart compares each selected day against the same calendar day in the historical record so the variables can be viewed on one scale.
Daily Spider Chart
Updated 2026-07-28T09:40:16Z
Lower score / better side
Near normal
Higher warmth or low-ice score
Spider axes show the percentile rank of each day's anomaly signal versus the same calendar day since 1979. For sea ice the signal is reversed, so lower ice extent pushes outward on the chart.
Selected Day Details
General Climate State
The index is the sum of the four daily climate scores divided by 400, so higher values indicate more simultaneous warmth and low sea ice relative to each calendar day’s historical record. Optional component lines show each score divided by 100 on the same scale.