Wyoming Climate – June 2026 Update
Top 5 Cities: Cheyenne, Casper, Laramie, Gillette, and Rock Springs
This month in numbers
Wyoming experienced a warmer and significantly drier June 2026. The average temperature for June was 14.83°C, which is 0.3°C above the 1961–1990 baseline, ranking as the 36th warmest June in 77 years of records. Maximum temperatures were notably higher, ranking 30th warmest with an anomaly of +1°C. Precipitation was a concern, with only 26.67 mm recorded, a deficit of 21.4 mm, making it the 62nd driest June on record. Globally, June 2026 was the 3rd warmest June on record for land temperatures, with an anomaly of +1°C.
What changed
Looking at the April–June 2026 period, Wyoming's average temperature was 9.96°C, an increase of 0.8°C above the baseline, ranking as the 22nd warmest such period on record. Maximum temperatures for this three-month span were even more pronounced, ranking as the 16th warmest with an anomaly of +1.6°C. Precipitation for April–June was significantly below average at 33.53 mm, a deficit of 15.9 mm, making it the 68th driest such period on record. This follows a historically dry winter and spring for many communities in Wyoming. Wyoming's 12-month rolling anomaly places it as the 4th warmest out of 234 regions, highlighting a significant long-term warming trend.
What’s driving change?
The persistent dry conditions in Wyoming are largely attributed to a series of stubborn high-pressure ridges in the Arctic Circle, which have been diverting cold, wet weather away from the western United States. This pattern has contributed to the region experiencing its driest spring in decades. The lack of precipitation has exacerbated drought conditions, with most of Wyoming currently experiencing severe or extreme drought. This further intensifies warming, as the ground cannot cool itself through evaporation. The state has also seen an unusual concentration of wildfire activity, with five wildfire events occurring between late June and mid-July, representing 100% of the annual total for the past 12 months. This includes the Raven Creek Fire in June, which burned over 4,200 acres. Additionally, there have been two drought events and one flood event in the past month, also representing 100% of the annual total for each type, indicating a period of heightened extreme weather. More information on active extreme weather events can be found at Extreme Weather tracker.
Looking ahead
The Climate Prediction Center's outlook for July through September 2026 favours above-normal temperatures for Wyoming, with an equal chance for above, below, or near-normal precipitation.
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 – Wyoming
Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Wyoming – Monthly Temperature – All Years
Data: NOAA National Centers for Environmental Information. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Wyoming
NOAA National Centers for Environmental Information - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm / cold seasonsKöppen Dfb · ContinentalHow spring and autumn have shifted in Wyoming. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (4.8°C, from 1950–1979); autumn is the date they fall back below it. Temperature swings 26.2°C peak-to-peak across the year - a classic four-seasons rhythm.
Baseline vs recent monthly temperature climatology. Biggest warming: Mar (+2.2°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
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Wyoming
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 Wyoming changing?
Wyoming 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 Wyoming come from?
Climate data for Wyoming 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 Wyoming climate data cover?
The Wyoming climate profile covers Cheyenne, Casper, Laramie, Gillette and surrounding areas. Wyoming climate data from NOAA Climate at a Glance
How often is the Wyoming climate update refreshed?
The Wyoming 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.