Oklahoma Climate – June 2026 Update
Top 5 Cities: Oklahoma City, Tulsa, Norman, Broken Arrow, and Edmond
This month in numbers
Oklahoma experienced its 15th warmest June on record, with an average temperature of 26.22°C, an anomaly of +1.5°C compared to the 1961–1990 baseline. Precipitation for June was significantly above average, with 168.91 mm, an anomaly of +69.3 mm, ranking it the 9th wettest June in 77 years of records. Globally, June 2026 was the 3rd warmest June on record for land temperatures.
What changed
The period of April to June 2026 was notably warm, ranking as the 3rd warmest such period on record for Oklahoma, with an average temperature of 21.85°C, an anomaly of +1.8°C. This trend aligns with the broader national and global picture, as global land temperatures for the same three-month period ranked as the 2nd warmest on record. Oklahoma's 1-month anomaly for June places it as the 91st warmest out of 234 regions, and it was the second warmest state in the NOAA South US climate region for the month.
What’s driving change?
Oklahoma has experienced significant extreme weather events recently. There have been five wildfire events between late June and mid-July, representing 100% of the annual total, which is an unusual concentration for the region. Wildfires in June forced evacuations in some communities, and the first half of 2026 has seen more wildfires across the US than in the first half of any of the previous 10 years, driven by dry conditions. Additionally, a severe flood warning was issued for parts of Oklahoma in late June, following a rare derecho that brought destructive winds and heavy rainfall, causing widespread flooding and damage. More information on these events can be found at Extreme Weather tracker.
Looking ahead
The Climate Prediction Center's outlook for July through September suggests increased odds of below-normal precipitation across the southern half of Oklahoma, with equal chances for the rest of the state. However, looking further ahead to the autumn and winter months, an evolving strong to very strong El Niño is expected to bring increased odds of above-normal precipitation, particularly across the western fifth of the state, including the panhandle.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Climate Map – USA
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 – Oklahoma
Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Oklahoma – Monthly Temperature – All Years
Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Oklahoma
NOAA National Centers for Environmental Information - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm/cold + wet/dryKöppen Cfa · TemperateOklahoma has both a clear warm/cold cycle (±12.8°C) and a wet/dry cycle (4× wet:dry ratio). Both sides of the annual rhythm are shown below.
Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Apr (+27 mm, +33%).
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
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Oklahoma
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 Oklahoma changing?
Oklahoma 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 Oklahoma come from?
Climate data for Oklahoma 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 Oklahoma climate data cover?
The Oklahoma climate profile covers Oklahoma City, Tulsa, Norman, Broken Arrow and surrounding areas. Oklahoma climate data from NOAA Climate at a Glance
How often is the Oklahoma climate update refreshed?
The Oklahoma 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.