humidity · Greece
Athens
August mean afternoon relative humidity
Modelled demonstration series · not observed data
This is the only tile on the wall where the dangerous direction is down. Low afternoon humidity, high temperature and wind are the three ingredients of extreme fire behaviour, and Attica has all three in August. Vegetation dries to the point where ignition becomes a certainty rather than a risk.
75 years, modelled
Same reading, two normals
| Normal | Mean | σ | Pct | Return |
|---|---|---|---|---|
| 1951–1980 | 38.0 % | −2.60σ | 0.47th | 1 in 210 years |
| 1991–2020 | 33.1 % | −2.24σ | 1st | 1 in 80 years |
Today would be the lowest value in the entire 75-year modelled series. Past the series' standing low of 25.7 % (1988). Nothing about the reading changes between rows — only the yardstick.
The season here
Attica in August is hot and dry by default; the anomaly worth watching is the afternoon air getting drier still.
Where this series comes from
MODELLED SERIES — not observed. Parameters set from published Athens August relative-humidity climatology. The 75 annual values are synthesised by the seeded generator.
Every number on this page comes from a modelled series: 75 annual values synthesised by a seeded generator from published climatological parameters for Athens. It shows how anomaly reasoning works. It is not a measurement and must not be cited as one.
How to read σ
σ counts standard deviations from this place's own normal. The sigma guide · return periods.
More humidity stations
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