4 Billion Years On

Ohio Climate – June 2026 Update

Top 5 Cities: Columbus, Cleveland, Cincinnati, Toledo, and Akron

This month in numbers

Ohio experienced a significantly warmer-than-average spring, with the April–June 2026 average temperature ranking as the 7th warmest in 77 years of records, at 16.72°C, an anomaly of +1.5°C above the 1961–1990 baseline. Maximum temperatures for the same period also ranked 8th highest on record, at 23.07°C, an anomaly of +1.4°C. Globally, land temperatures in June 2026 ranked as the 3rd warmest on record, at 16.46°C, an anomaly of +1°C, and the April–June period ranked as the 2nd warmest on record, at 15.74°C, also an anomaly of +1°C.

What changed

The past three months have seen Ohio experiencing a notable warming trend, particularly when compared to the national and global picture. While Ohio's June average temperature was only slightly above average, the April-June period stands out as significantly warmer. This regional warming aligns with the broader trend of increasing global land temperatures, which saw the past month and three-month period rank among the top three warmest on record. Ohio's 1-month anomaly of +0.56°C places it 198th out of 234 regions globally, while its 3-month anomaly of +1.51°C places it 100th.

What’s driving change?

The elevated temperatures in Ohio are consistent with the broader pattern of global warming, influenced by factors such as the , where higher-latitude regions tend to warm faster than the tropics. Additionally, Ohio has experienced a cluster of four wildfire events between late June and early July, representing 100% of the state's wildfire total for the past 12 months. While current wildfire risk in Ohio is considered lower than normal due to recent rainfall, this concentration of events is unusual for the region. More information on active extreme weather events can be found at Extreme Weather tracker.

Looking ahead

The NOAA Climate Prediction Center's outlook for weeks 3-4 (July 19-25) indicates enhanced probabilities of warmer-than-normal temperatures across much of the eastern contiguous United States, including the Ohio Valley, with a slight risk of heavy precipitation for portions of the Ohio Valley.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Ohio
United States
Global
Land + Ocean
Jun
+0.6°C· 36th
20.9°C
+1.2°C· 13th
21.5°C
+1.0°C· 2nd
16.6°C
Record
23.0°C (1952)
22.5°C (2021)
16.7°C (2024)
Apr–Jun
+1.5°C· 7th
16.7°C
+1.3°C· 4th
16.9°C
+1.0°C· 2nd
15.8°C
Record
18.0°C (1991)
17.1°C (2012)
15.9°C (2024)
2025
+1.0°C· 22nd
11.1°C
+1.5°C· 4th
12.6°C
+1.0°C· 3rd
15.0°C
Record
12.7°C (2024)
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 – Ohio

1950202619611990 baselineColdest (1978)20162025 meanWarmest (2024)2026 so far
2026Jun
2024
WinterSpringSummerAutumnJanFebMarAprMayJunJulAugSepOctNovDec1950-792016-25Spr Start−5 days1950-792016-25Aut End+7 days-10°-5°10°15°20°25°
Temp
8.7°C
-1.4 vs base
Rainfall
541mm
-432 vs base
Playback
8×
Mode
Metric
Presets

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

Ohio – Monthly Temperature – All Years

Metric
All years since 19872024 (warmest)2026 (current year)

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

Records – Ohio

Warmest year
2024
12.7°C
Coldest year
1978
9.1°C
2026 so far
#15/77
8.7°C

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

Shifting Seasons

Warm / cold seasonsKöppen Dfa · Continental

How spring and autumn have shifted in Ohio. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (10.1°C, from 19501979); autumn is the date they fall back below it. Temperature swings 25.9°C peak-to-peak across the year - a classic four-seasons rhythm.

Shifting summer
12 days longer
Warm season
1950–1979 baseline: 18 Apr → 23 Oct · 188 days
2016–2025 now: 12 Apr → 29 Oct · 200 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 5 days earlierAut 7 days later
baseline yr·recent yr·ring = global temp anomaly

Baseline vs recent monthly temperature climatology. Biggest warming: Feb (+3.1°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
Ohio
United States
Jun
-2 mm· 47th
93 mm
+9 mm· 24th
82 mm
Record
204 mm (2015)
97 mm (1989)
Apr–Jun
+19 mm· 24th
114 mm
+5 mm· 29th
75 mm
Record
152 mm (2011)
98 mm (1957)
2025
+21 mm· 37th
994 mm
-27 mm· 55th
743 mm
Record
1421 mm (2011)
887 mm (1973)
Headline: anomaly vs the 1961–1990 mean · Small figure: the actual value · Record = highest (or lowest) value on record

Emissions & Energy

Explore

Explore Climate Data

Data Sources

Data Sources for Ohio

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 Ohio changing?

Ohio 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 Ohio come from?

Climate data for Ohio 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 Ohio climate data cover?

The Ohio climate profile covers Columbus, Cleveland, Cincinnati, Toledo and surrounding areas. Ohio climate data from NOAA Climate at a Glance

How often is the Ohio climate update refreshed?

The Ohio 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.