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Dearborn, Michigan

Weather & air thermodynamics

Recorded hourly · forecast daily · ET
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Now

Current
Forecast H / L
today
Humidity
Dew Point
Pressure
inHg
Enthalpy now / fcst lo–hi
BTU/lb

3-Day Forecast

Daily History · click a chart to enlarge

Daily values aggregated from hourly observations. Today (enlarged final point) is still in progress. Dashed = moving average. Rain/wind chart: bars are daily rainfall totals (in), the line is average wind speed (mph), and arrows show the prevailing wind direction (the way it blows toward).

Hourly Progression · click a chart to enlarge

Experimental — Enthalpy Moving Averages · 5-day vs 20-day rolling average · click to enlarge

Daily peak / mid / low timing
Typical daily peak
Typical daily mid
Typical daily low

Both lines are trailing moving averages of hourly air enthalpy (BTU/lb): a 5-day (120-hour) average for the near-term trend and a 20-day (480-hour) average for the slower seasonal baseline. Crossovers mark shifts in the moisture-energy trend.

Experimental — Enthalpy Short-Window Averages · 9-hour vs 1-hour rolling average · click to enlarge

Trailing moving averages of hourly air enthalpy (BTU/lb): a 9-hour average to smooth the intraday swing against a 1-hour average (effectively the raw hourly reading). Useful for spotting short-term moisture-energy turns.