Nowmal › Mississippi › Jackson County
Climate-adjusted normal temperatures for 2026 — what “normal” looks like when it’s measured against today’s climate instead of a 30-year average centered on 2005.
Jackson County’s official normal high — the 1991–2020 average shown by weather apps — now understates the local climate by an average of 0.7°F across the year. The gap is widest in March (+1.3°F), and warming here has been fastest in winter. That places Jackson County #1,696 of 3,136 U.S. counties for how far “normal” has drifted from reality.
1991 called. It wants its climate baseline back.
| Month | Normal high | Adjusted high | Normal low | Adjusted low | Gap (high) |
|---|---|---|---|---|---|
| January | 61.5° | 61.9° | 40.3° | 40.1° | +0.4° |
| February | 65.3° | 66.5° | 44.0° | 45.3° | +1.2° |
| March | 71.7° | 73.0° | 49.7° | 50.8° | +1.3° |
| April | 77.5° | 77.8° | 55.5° | 55.9° | +0.4° |
| May | 84.2° | 84.7° | 63.4° | 64.3° | +0.5° |
| June | 89.2° | 89.3° | 70.1° | 71.1° | +0.2° |
| July | 90.8° | 91.1° | 72.3° | 73.3° | +0.3° |
| August | 90.8° | 91.3° | 72.0° | 73.0° | +0.5° |
| September | 87.5° | 88.0° | 67.9° | 68.6° | +0.5° |
| October | 79.9° | 80.4° | 57.3° | 58.2° | +0.6° |
| November | 70.4° | 71.3° | 46.8° | 47.7° | +0.9° |
| December | 63.7° | 64.9° | 42.5° | 43.6° | +1.2° |
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“normal” temperature in every weather app is a 30-year average (1991–2020) — a number centered on mid-2005, two decades out of date in a warming climate.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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The official normal is the 1991–2020 average from NOAA’s homogenized county climate record (nClimDiv). The warming trend is fit to the county’s full record since 1895 using NOAA’s published hinge-fit approach — flat before 1975, linear after — then the normal is advanced 20.5 years to 2026. Full details on the methodology page.
Cities in Jackson County: Pascagoula · Gautier · Ocean Springs · Moss Point
More in Mississippi: Pike County · Hancock County · Holmes County · Walthall County · Pearl River County · Amite County · all Mississippi counties
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