Local Climate Trends

Climate Stripes for Harrisburg

Temperature Anomaly Heatmap

This heatmap shows seasonal temperature anomalies relative to the 20th-century average for each year from 1950 to 2024. Each row represents a season (Winter, Spring, Summer, Fall), and each column a year. Red shades indicate warmer-than-average seasons, while blue shades represent cooler-than-average ones. The shift from predominantly blue to red over time highlights the long-term warming trend across all seasons.

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Harrisburg Climate At a Glance

Seasonal Temperature Trends

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0.0°C
Winter
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0.0°C
Spring
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0.0°C
Summer
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0.0°C
Fall

Trends in Hot and Cold Days

Temperature threshold data not available for this location.

Harrisburg Annual Mean Temperature Trends

Annual Mean Temperature Trends

Temperature data shows warming trends for Harrisburg based on NOAA NClimGrid climate data.

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Harrisburg Hot and Cold Days

Days Above 90°F ⬇️ Download

Temperature threshold data for Harrisburg shows changes in extreme heat days.

Days Below 32°F ⬇️ Download

Temperature threshold data for Harrisburg shows changes in freezing days.

Frequently Asked Questions About Harrisburg's Climate

How much has Harrisburg warmed since 1951?

Harrisburg has warmed by 0.0°C on average since 1951. This warming trend is consistent with broader climate change patterns observed across the region.

What season has warmed the most in Harrisburg?

Winter has experienced the most warming with 0.0°C of temperature increase since 1951. This seasonal variation is typical of mid-latitude climate change patterns.

How have precipitation patterns changed in Harrisburg?

Precipitation patterns in Harrisburg have remained relatively stable since 1951, though year-to-year variability continues to be significant.

Is the warming in Harrisburg part of a larger trend?

Yes, the warming observed in Harrisburg is consistent with regional and global climate change trends. The temperature increases align with patterns seen across PA and the broader United States, reflecting the impacts of human-caused climate change.

What climate data sources are used for Harrisburg?

The climate data for Harrisburg comes from NOAA's NClimGrid dataset, which provides gridded climate information based on weather station observations. The data represents the 0.56km grid cell nearest to Harrisburg, located at coordinates 40.27°N, 76.88°W.

How reliable are the climate projections for Harrisburg?

The historical climate trends shown for Harrisburg are based on observed data from 1951 to present and are highly reliable. These trends provide insight into how the local climate has already changed and can inform expectations for continued warming, though specific future projections would require additional climate modeling.

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