4 Billion Years On

US Southeast Climate – May 2026 Update

Top States: Florida, Georgia, Virginia, North Carolina, and South Carolina

This month in numbers

The US Southeast region experienced a significantly warmer May, with a 1-month temperature anomaly of +0.58°C above the 1961–1990 average. The warming trend is even more pronounced over longer periods, with the 3-month anomaly at +2.29°C and the 12-month rolling anomaly at +1.21°C. Globally, May 2026 ranked as the second-warmest May on record, trailing only 2024.

Hottest & coolest US states

Within the US Southeast, Florida climate page stood out as exceptionally warm, recording a striking +1.77°C anomaly for May. Georgia climate page also experienced above-average temperatures at +0.54°C. Virginia climate page was the coolest state in the region, though still registering a positive anomaly of +0.15°C.

What's driving change?

The current climate pattern is strongly influenced by an emerging El Niño, with the NOAA CPC forecasting a 99% probability of El Niño conditions persisting through the summer and autumn months /climate/enso. El Niño typically brings cooler and wetter winters to the Southeast USA, but its influence during the spring and early summer can be more complex. The region has also been grappling with significant drought conditions, with 100% of the Southeast experiencing at least some level of dryness or drought in April, and over half the region in extreme drought by May. This widespread drought, exacerbated by the effect, has likely contributed to the warmer temperatures by limiting evaporative cooling from soils. Severe weather, including flash floods and strong thunderstorms, also impacted parts of the Southeast in May.

Looking ahead

The strong El Niño forecast for the coming months suggests a potential shift towards cooler and wetter conditions for the US Southeast during the upcoming winter season.

Generated by Gemini from climate data and web sources

Climate Map – USA

Window

Source: NOAA Climate at a Glance — US states & climate regions (tavg, pcp). Anomalies are vs the 1961–1990 baseline (temperature) or 1991–2020 (rainfall). See methodology.

Temperature – Average

US Southeast
United States
Global
Land + Ocean
May
21.3°C· 35th
+0.6°C
16.5°C· 19th
+0.8°C
15.0°C· 2nd
+0.9°C
Record
23.6°C (2019)
18.6°C (2018)
15.1°C (2024)
Mar–May
18.9°C· 2nd
+2.3°C
13.2°C· 2nd
+2.6°C
15.0°C· 3rd
+1.0°C
Record
19.2°C (2012)
13.4°C (2012)
15.1°C (2024)
2025
17.8°C· 13th
+1.1°C
12.6°C· 4th
+1.5°C
15.0°C· 3rd
+1.0°C
Record
18.5°C (2019)
13.1°C (2024)
15.2°C (2024)
Baseline: 1961–1990 mean · Anomaly = difference from baseline · Record = highest (or lowest) value on record

The 4byo Climate Helix – US Southeast

1950202619611990 baselineColdest (1958)20162025 meanWarmest (2019)2026 so far
2026May
WinterSpringSummerAutumnJanFebMarAprMayJunJulAugSepOctNovDec1950-792016-25Spr Start−7 days1950-792016-25Aut End+9 days10°15°20°25°
Temp
14.6°C
-2.1 vs base
Rainfall
388mm
-898 vs base
ENSO
ONI 3-mo mean
Playback
8×
Mode
Metric
Presets

NOAA Climate at a Glance — regional tavg / pcp (monthly absolutes).

US Southeast – Monthly Temperature – All Years

Metric
All years since 19872019 (warmest)2026 (current year)

NOAA Climate at a Glance — regional tavg / pcp (monthly absolutes).

Records – US Southeast

Warmest year
2019
18.5°C
Coldest year
1958
16.0°C
2026 so far
#10/77
14.6°C

NOAA Climate at a Glance — regional tavg / pcp (monthly absolutes).

Shifting Seasons

Warm / cold seasons

How spring and autumn have shifted in US Southeast. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (16.8°C, from 19501979); autumn is the date they fall back below it. Temperature swings 18.7°C peak-to-peak across the year - a classic four-seasons rhythm.

Shifting summer
16 days longer
Warm season
1950–1979 baseline: 16 Apr → 20 Oct · 187 days
2016–2025 now: 9 Apr → 28 Oct · 203 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 7 days earlierAut 9 days later
baseline yr·recent yr·ring = global temp anomaly

Baseline vs recent monthly temperature climatology. Biggest warming: Feb (+3.2°C).

NOAA Climate at a Glance — regional tavg. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.

Rainfall & Rain Days – Totals

Rainfall / Precipitation
US Southeast
United States
May
148 mm· 6th
+42 mm
73 mm· 49th
-3 mm
Record
191 mm (1976)
114 mm (2019)
Mar–May
84 mm· 65th
-21 mm
63 mm· 58th
-5 mm
Record
154 mm (1980)
88 mm (1957)
2025
1154 mm· 64th
-132 mm
743 mm· 55th
-26 mm
Record
1592 mm (2018)
887 mm (1973)
Baseline: 1961–1990 mean · Anomaly = difference from baseline · Record = highest (or lowest) value on record

Member States (6)

Hottest & Coolest in US Southeast this Month

1-month anomaly vs 1961–1990 across the 6 members we cover. Click a name to open its profile.

Warmest

  1. 1.🌴Florida+1.77°C
  2. 2.🇺🇸Georgia+0.54°C
  3. 3.🇺🇸North Carolina+0.33°C
  4. 4.🇺🇸South Carolina+0.32°C
  5. 5.🇺🇸Alabama+0.20°C

Coolest

  1. 1.🇺🇸Virginia+0.15°C
  2. 2.🇺🇸Alabama+0.20°C
  3. 3.🇺🇸South Carolina+0.32°C
  4. 4.🇺🇸North Carolina+0.33°C
  5. 5.🇺🇸Georgia+0.54°C

Climate Systems

Loading ENSO tracker…

Data Sources

  • NOAA Climate at a Glance — Regional time series · NOAA code 104 · Open at NOAA
  • Two-baseline model — comparison baseline 1961–1990; native baseline 1901–2000. Methodology →

Data Sources

Data Sources for US Southeast

Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.

FAQs

FAQs

How is the climate in US Southeast changing?

US Southeast is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.

Where does the climate data for US Southeast come from?

Climate data for US Southeast comes from authoritative climate datasets including national meteorological services and peer-reviewed reanalyses, refreshed every month, when the upstream temperature and rainfall data are refreshed.

What is the climate baseline used on this page?

Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.

Which areas does the US Southeast climate data cover?

The US Southeast climate profile covers Florida, Georgia, Virginia, North Carolina and surrounding areas. NOAA Southeast - AL, FL, GA, NC, SC, VA

How often is the US Southeast climate update refreshed?

The US Southeast climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.

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