Nowmal › Kentucky › Louisville/Jefferson County metro government (balance)
Louisville/Jefferson County metro government (balance), Kentucky
The week’s forecast, measured against two yardsticks: the “normal” your weather app still uses — a 1991–2020 average centered on 2005 — and the climate-adjusted normal, which here runs +0.7°F warmer. Same NOAA data. No pretending.
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Month by month
1991 called. It wants its climate baseline back.
| Month | Normal high | Adjusted high | Normal low | Adjusted low | Gap (high) |
|---|---|---|---|---|---|
| January | 42.3° | 42.8° | 25.0° | 26.0° | +0.5° |
| February | 47.0° | 49.1° | 27.7° | 29.4° | +2.0° |
| March | 56.8° | 58.7° | 35.4° | 36.6° | +1.9° |
| April | 68.4° | 69.3° | 44.9° | 45.9° | +1.0° |
| May | 76.9° | 77.2° | 55.1° | 56.5° | +0.3° |
| June | 84.8° | 85.0° | 63.4° | 64.6° | +0.2° |
| July | 87.4° | 86.8° | 67.1° | 68.1° | +-0.6° |
| August | 86.9° | 86.7° | 65.3° | 66.0° | +-0.2° |
| September | 81.0° | 81.3° | 57.8° | 58.7° | +0.3° |
| October | 69.3° | 69.6° | 46.1° | 47.3° | +0.3° |
| November | 56.5° | 57.4° | 35.8° | 36.8° | +1.0° |
| December | 46.0° | 47.9° | 29.3° | 31.3° | +1.8° |
The “normal” temperature in every weather app is a 30-year average (1991–2020) — a number centered on mid-2005, two decades out of date in a warming climate. The Climate-Adjusted Normal takes NOAA’s official normal and advances it to the present using this county’s own measured warming trend.
It isn’t a forecast — it’s a more honest yardstick for what “normal” means now. Read why Nowmal exists →
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About this data
The forecast is the National Weather Service’s, for Louisville/Jefferson County metro government (balance) itself. Normals and the warming trend are computed at county level (Jefferson County) from NOAA’s homogenized climate record, because climate trends vary smoothly — nearby towns warm at statistically indistinguishable rates. Method details on the methodology page.
Nearby: Jeffersontown · St. Matthews · Shively · Lyndon · Middletown · Douglass Hills · Jefferson County data page
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