San Jose Climate Data
Since 1951, San Jose's average temperature has risen by about 0.0°C, with the most striking increases hitting all seasons. The pace quickened after 1980, averaging 0.0°C of warming per decade.
Temperature Change
0.0°C
Since 1951
Precipitation Change
0.0mm
(0.0%)
Since 1951
Climate Stripes for San Jose
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.
⬇️ DownloadSan Jose Annual Mean Temperature Trends
Temperature data shows warming trends for San Jose based on NOAA NClimGrid climate data.
⬇️ DownloadSan Jose Precipitation Trends
This chart shows seasonal precipitation trends for San Jose area, displaying how rainfall patterns have changed over time across different seasons.
⬇️ DownloadSan Jose Hot and Cold Days
Few days below 32°F
San Jose Seasonal Temperature Trends
Winter
Spring
Summer
Fall
Frequently Asked Questions About San Jose's Climate
How much has San Jose warmed since 1951?
San Jose 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 San Jose?
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 San Jose?
Precipitation patterns in San Jose have remained relatively stable since 1951, though year-to-year variability continues to be significant.
Is the warming in San Jose part of a larger trend?
Yes, the warming observed in San Jose is consistent with regional and global climate change trends. The temperature increases align with patterns seen across CA and the broader United States, reflecting the impacts of human-caused climate change.
What climate data sources are used for San Jose?
The climate data for San Jose comes from NOAA's NClimGrid dataset, which provides gridded climate information based on weather station observations. The data represents the 0.44km grid cell nearest to San Jose, located at coordinates 37.34°N, 121.89°W.
How reliable are the climate projections for San Jose?
The historical climate trends shown for San Jose 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.
About This Data
- Location: San Jose, CA
- Grid Coordinates: 37.34°N, 121.89°W
- Distance to grid center: 0.4 km
- Data source: NOAA NClimGrid climate data