US Northeast Climate – June 2026 Update
Top States: New York, Pennsylvania, Massachusetts, New Jersey, and Maryland
This month in numbers
The US Northeast experienced a significantly warmer June, with a 1-month anomaly of +1.21°C compared to the 1961–1990 average. The 3-month anomaly stands at +1.23°C, while the 12-month rolling anomaly is +0.85°C. Globally, June 2026 was the 2nd warmest on record for combined land and ocean temperatures. The Northeast climate region ranked in the upper percentiles for above-normal cooling demand due to unusually high air temperatures.
Hottest & coolest US states
Rhode Island US Rhode Island was notably warm, recording a +2.25°C anomaly, making it among the warmest states relative to normal last month and seeing its warmest June on record for average maximum temperatures. Delaware US Delaware followed with +2.00°C, and Massachusetts US Massachusetts with +1.74°C. On the cooler side, Pennsylvania US Pennsylvania registered the lowest anomaly in the region at +0.79°C.
What's driving change?
The current strong El Niño phase is a significant factor, with the NOAA ONI 3-month anomaly (AMJ 2026) at +0.98°C, and a 100% probability of El Niño continuing through the end of 2026 ENSO. This El Niño typically brings warmer-than-average winters to the Northeast USA. Additionally, a much warmer western North Atlantic basin contributed to the East Coast's shift towards warmer temperatures. The region also experienced severe thunderstorms and damaging winds in June, with flash flooding reported in parts of New Jersey and New York. Philadelphia, for example, saw heavy rain and flooding on June 22nd. These events highlight the impact of seasonal shifts and the increased intensity of rainfall in a warming climate.
Looking ahead
The ongoing strong El Niño is expected to continue through the coming months, likely contributing to a milder-than-average winter for the US Northeast.
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.
Hottest & Coolest in US Northeast this Month
1-month anomaly vs 1961–1990 across the 11 members we cover. Click a name to open its profile.
Warmest
- 1.🇺🇸Rhode Island+2.25°C
- 2.🇺🇸Delaware+2.00°C
- 3.🇺🇸Massachusetts+1.74°C
- 4.🇺🇸New Jersey+1.72°C
- 5.🇺🇸Maryland+1.54°C
Coolest
- 1.🇺🇸Pennsylvania+0.79°C
- 2.🇺🇸New York+0.97°C
- 3.🇺🇸Vermont+1.26°C
- 4.🇺🇸Maine+1.34°C
- 5.🇺🇸Connecticut+1.43°C
Member States
Year-on-Year Trends
The 4byo Climate Helix – US Northeast
NOAA Climate at a Glance — regional tavg / pcp (monthly absolutes).
US Northeast – Monthly Temperature – All Years
NOAA Climate at a Glance — regional tavg / pcp (monthly absolutes).
Records – US Northeast
NOAA Climate at a Glance - regional tavg / pcp - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm / cold seasonsHow spring and autumn have shifted in US Northeast. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (7.5°C, from 1950–1979); autumn is the date they fall back below it. Temperature swings 26.4°C peak-to-peak across the year - a classic four-seasons rhythm.
Baseline vs recent monthly temperature climatology. Biggest warming: Feb (+3.0°C).
NOAA Climate at a Glance — regional tavg. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Rain Days – Totals
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for US Northeast
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 Northeast changing?
US Northeast 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 Northeast come from?
Climate data for US Northeast 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 Northeast climate data cover?
The US Northeast climate profile covers New York, Pennsylvania, Massachusetts, New Jersey and surrounding areas. NOAA Northeast climate region - CT, DE, ME, MA, MD, NH, NJ, NY, PA, RI, VT
How often is the US Northeast climate update refreshed?
The US Northeast 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.