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Has the climate in Roswell changed?

Roswell has warmed about 1.2°F since 1999.

About 0.5°F per decade, measured from Roswell's official daily weather records, 1999–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Roswell's warming is broadly in line with other cities in United States — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
6 fewer nights
1970s
49 / yr
Recent
43 / yr
Milder winters — fewer frosts
Average temperature
+0.7°F
1970s
62.2°F
Recent
63.0°F
A steady upward drift
Hot days above 90°F
7 more days
1970s
45 / yr
Recent
52 / yr
More days of serious heat
Rainy days
11 fewer days
1970s
135 / yr
Recent
124 / yr
Drier on average

Roswell's temperature, year by year

Average temperature for each year from 1999 to 2025.

59°61°63°65°1999: 63.1°F2000: 62.1°F2001: 61.4°F2002: 62.2°F2003: 61.1°F2004: 61.9°F2005: 62.0°F2006: 63.1°F2007: 63.2°F2008: 61.6°F2009: 61.3°F2010: 61.5°F2011: 63.0°F2012: 63.9°F2013: 60.8°F2014: 60.4°F2015: 63.3°F2016: 64.4°F2017: 63.6°F2018: 62.5°F2019: 63.4°F2020: 62.4°F2021: 62.6°F2022: 62.2°F2023: 63.1°F2024: 63.5°F2025: 63.2°Flong-term trend19992000201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 16 more freezing nights a year and about 7 fewer days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

-3.5°-3.0°-2.5°-2.0°-1.5°-1.0°-0.5°0.0°+0.5°+1.0°January: -2.5°F-2.5JFebruary: -3.3°F-3.3FMarch: +0.1°F+0.1MApril: -0.2°F-0.2AMay: -2.4°F-2.4MJune: -1.6°F-1.6JJuly: -1.5°F-1.5JAugust: -1.7°F-1.7ASeptember: -0.7°F-0.7SOctober: -2.3°F-2.3ONovember: -2.4°F-2.4NDecember: +1.0°F+1.0D

February has cooled the most — about 3.3°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Atlanta Dekalb Peachtree AP (NOAA GHCN station USW00053863), about 17 km from the city centre.

How we build these numbers →