4 Billion Years On

Mississippi Climate – June 2026 Update

Top 5 Cities: Jackson, Gulfport, Southaven, Hattiesburg, and Biloxi

This month in numbers

Mississippi experienced its 15th warmest June on record, with an average temperature of 26.44°C, an anomaly of +1.1°C compared to the 1961–1990 baseline. The state also saw its 12th wettest June, receiving 167.13 mm of precipitation, which is 65.3 mm above average. Globally, June 2026 ranked as the 3rd warmest June on record for land temperatures, with an anomaly of +1°C.

What changed

The period of April to June 2026 was the 6th warmest on record for Mississippi, with an average temperature of 22.92°C, an anomaly of +1.4°C. This trend aligns with the broader warming observed across the Southern US climate region, which saw a 3-month anomaly of +1.51°C. Mississippi's precipitation for April to June was also notably high, ranking as the 14th wettest on record with 163.24 mm, an anomaly of +41.1 mm. This comes after May experienced excessive rains, which helped to improve drought conditions across parts of the state.

What’s driving change?

The warming trend in Mississippi is influenced by global factors, with global land temperatures ranking as the 2nd warmest on record for the April-June period. Additionally, a weak El Niño is currently active, with a weekly Niño 3.4 sea surface temperature anomaly of +1.8°C as of July 1, 2026, and is forecast to strengthen into a strong El Niño through the end of the year. El Niño typically brings cooler and wetter conditions to the Southeast USA during winter, but its summer impacts can be more nuanced. Mississippi has also experienced a significant concentration of extreme weather events recently, with four wildfires, two drought events, and one flood event occurring in the past 12 months, all active in the last 30 days. Notably, heavy rainfall associated with the remnants of Tropical Storm Arthur in mid-June led to life-threatening floods, evacuations, and road closures across several Mississippi counties, with one fatality reported. More information on these events can be found at Extreme Weather tracker.

Looking ahead

The strengthening El Niño is expected to bring a higher likelihood of above-average precipitation and cooler-than-average temperatures to the Mississippi Gulf Coast during the upcoming winter months.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Mississippi
United States
Global
Land + Ocean
Jun
+1.1°C· 15th
26.4°C
+1.2°C· 13th
21.5°C
+1.0°C· 2nd
16.6°C
Record
28.3°C (1953)
22.5°C (2021)
16.7°C (2024)
Apr–Jun
+1.4°C· 6th
22.9°C
+1.3°C· 4th
16.9°C
+1.0°C· 2nd
15.8°C
Record
23.3°C (2010)
17.1°C (2012)
15.9°C (2024)
2025
+1.6°C· 4th
18.8°C
+1.5°C· 4th
12.6°C
+1.0°C· 3rd
15.0°C
Record
19.3°C (2023)
13.1°C (2024)
15.2°C (2024)
Headline: anomaly vs the 1961–1990 mean · Small figure: the actual value · Record = highest (or lowest) value on record

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.

Year-on-Year Trends

The 4byo Climate Helix – Mississippi

1950202619611990 baselineColdest (1976)20162025 meanWarmest (2023)2026 so far
2026Jun
2023
WinterSpringSummerAutumnJanFebMarAprMayJunJulAugSepOctNovDec1950-792016-25Spr Start−3 days1950-792016-25Aut End+9 days10°15°20°25°30°
Temp
17.7°C
+0.4 vs base
Rainfall
751mm
-713 vs base
ENSO
ONI 3-mo mean
Playback
8×
Mode
Metric
Presets

Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.

Mississippi – Monthly Temperature – All Years

Metric
All years since 19872023 (warmest)2026 (current year)

Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.

Records – Mississippi

Warmest year
2023
19.3°C
Coldest year
1976
16.3°C
2026 so far
#4/77
17.7°C

NOAA National Centers for Environmental Information - Anomalies vs 1901-2000 mean

Shifting Seasons

Warm / cold seasonsKöppen Cfa · Temperate

How spring and autumn have shifted in Mississippi. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (17.3°C, from 19501979); autumn is the date they fall back below it. Temperature swings 20.3°C peak-to-peak across the year - a classic four-seasons rhythm.

Shifting summer
12 days longer
Warm season
1950–1979 baseline: 13 Apr → 18 Oct · 188 days
2016–2025 now: 10 Apr → 26 Oct · 199 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 3 days earlierAut 9 days later
baseline yr·recent yr·ring = global temp anomaly

Baseline vs recent monthly temperature climatology. Biggest warming: Feb (+2.8°C).

Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.

Rainfall & Precipitation

Rainfall & Rain Days – Totals

Rainfall / Precipitation
Mississippi
United States
Jun
+65 mm· 12th
167 mm
+9 mm· 24th
82 mm
Record
253 mm (1989)
97 mm (1989)
Apr–Jun
+41 mm· 14th
163 mm
+5 mm· 29th
75 mm
Record
246 mm (1991)
98 mm (1957)
2025
-133 mm· 55th
1330 mm
-27 mm· 55th
743 mm
Record
1920 mm (1979)
887 mm (1973)
Headline: anomaly vs the 1961–1990 mean · Small figure: the actual value · Record = highest (or lowest) value on record

Climate Systems

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Emissions & Energy

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Data Sources

Data Sources for Mississippi

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 Mississippi changing?

Mississippi 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 Mississippi come from?

Climate data for Mississippi comes from NOAA Climate at a Glance (temperature and precipitation), 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 Mississippi climate data cover?

The Mississippi climate profile covers Jackson, Gulfport, Southaven, Hattiesburg and surrounding areas. Mississippi climate data from NOAA Climate at a Glance

How often is the Mississippi climate update refreshed?

The Mississippi 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.