---
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caption: 'Continental U.S. seasonal temperatures (relative to the 1901-1960 average) for winter, spring, summer, and fall all show evidence of increasing trends. Dashed lines show the linear trends. Stronger trends are seen in winter and spring as compared to summer and fall. (Figure source: updated from Kunkel et al. 2013<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib>).'
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  display_name: 'Chapter 33: Appendix 3: Climate Science Supplement'
  doi: 10.7930/J0KS6PHH
  identifier: appendix-climate-science-supplement
  number: 33
  report_identifier: nca3
  sort_key: 330
  title: 'Appendix 3: Climate Science Supplement'
  url: http://nca2014.globalchange.gov/report/appendices/climate-science-supplement
chapter_identifier: appendix-climate-science-supplement
cited_by: []
contributors: []
create_dt: 2013-07-01T10:31:52
description: 'Continental U.S. seasonal temperatures (relative to the 1901-1960 average) for winter, spring, summer, and fall all show evidence of increasing trends. Dashed lines show the linear trends. Stronger trends are seen in winter and spring as compared to summer and fall. (Figure source: updated from Kunkel et al. 2013<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib>).'
display_name: '33.28: U.S. Seasonal Temperatures'
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    time_end: 2012-02-29T23:59:59
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report:
  display_name: 'Climate Change Impacts in the United States: The Third National Climate Assessment'
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title: U.S. Seasonal Temperatures
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