Annual Temperature — Free Curved Line Chart Template

The Annual Temperature template plots average monthly temperatures as a smooth curved line, making the seasonal warm-up and cool-down easy to read at a glance. The sample data traces a single location across twelve months, rising from a chilly 32 in January to a summer peak near 82 in July before easing back down. It is a ready-made starting point for any seasonal temperature chart, so you can swap in your own city or year and have a polished graphic in seconds.

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Free to use on your own website — WordPress, Wix, or any platform. Paste one line and it works instantly, resizing to fit.

About This Curved Line Chart Template

The Annual Temperature template plots average monthly temperatures as a smooth curved line, making the seasonal warm-up and cool-down easy to read at a glance. The sample data traces a single location across twelve months, rising from a chilly 32 in January to a summer peak near 82 in July before easing back down. It is a ready-made starting point for any seasonal temperature chart, so you can swap in your own city or year and have a polished graphic in seconds.

It's a ready-made Curved Line Chart you can open and edit in seconds — replace the sample numbers with your own, restyle it, and download a publication-ready image, all free and in your browser.

Template Data

This template ships with the sample data below. Open it in the editor to swap in your own figures:

MonthAvg Temp
Jan32
Feb35
Mar45
Apr55
May65
Jun75
Jul82
Aug80
Sep72
Oct58
Nov45
Dec35

When to Use This Template

How to Use It

  1. Open the template — click "Open This Template in the Editor" to load it with its sample data.
  2. Edit the data — type your own labels and values, or paste a column straight from a spreadsheet.
  3. Customize & export — pick colors, add a title, then download as PNG, SVG, or PDF. No signup, no watermark.

Frequently Asked Questions

Can I replace the sample temperatures with my own data?

Yes. Click Open in editor and edit the 12 monthly values directly in the data table, or add and rename rows for a different set of months. The curved line updates instantly as you type, and you can change the title, colors, and labels too.

Is it free and how do I export the finished chart?

It is completely free with no signup. Everything runs in your browser, and when you are done you can export your temperature chart as a PNG, SVG, or PDF to drop into reports, slides, or print.

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