EarthLabs for Educators > Drought > Lab 3: Normal Climate Patterns

Lab 3: Normal Climate Patterns

This activity has been selected for inclusion in the CLEAN collection.

This activity has been extensively reviewed for inclusion in the Climate Literacy and Energy Awareness Network's collection of educational resources. For information the process and the collection, see

This page first made public: Aug 12, 2008

The lab activity described here was created by Betsy Youngman of Phoenix Country Day School and LuAnn Dahlman of TERC for the EarthLabs project.

Summary and Learning Objectives

Students generate and explore a variety of graphs, charts and map images in order to better understand the concept of normal climate. Ideally, students should work in pairs on this lab. Consider assigning each student team to investigate the climate of a single region or state and then having all the teams share their results with the entire class.

After completing this investigation, students will be able to:
  • Access and interpret online climatographs of temperature and precipitation.
  • Use data and map images to describe the climate patterns of a given region.
Open the Student Lab »

Context for Use

This lesson is a fundamental piece in the overall drought unit. It can also serve as a stand-alone lesson on climate patterns. Rather than presenting a general definition of climate, it develops student's understanding by having them make in-depth examinations of historical climate patterns using both graphical and map image formats.

Estimated Time Required

  • Part A: 20 minutes
  • Part B: 30 minutes
  • Part C: 20 minutes to explore, 30 minutes to prepare a product or presentation plus additional time for sharing results.
Open the Student Lab »

Activity Overview and Teaching Materials

Part A begins with the question, "What's it like at your location during May?" Students access online graphs from NCDC's Divisional Data Selection interface to generate and view temperature and precipitation measurements for single years, multiple years, and for a single month across a decade or more.

In Part B, students investigate classic climograms, charts that show long-term averages of temperature and precipitation for cities across the U.S. They also explore daily mean maximum and minimum temperatures (daily highs and lows) by interpreting climotology graphs for several locations.

In Part C, students use an online map generator, the Climate Atlas of the United States, to explore temperature and precipitation patterns across the continental United States. The lesson concludes by assigning students to prepare a presentation, poster, or paper, illustrated with annotated graphs and/or maps, that describes the climate of one area of the United States.

Links to PDF files which can be printed and distributed:

Printable Materials

You may want to provide a hard copy of the activity sheet (Acrobat (PDF) 40kB Aug3 08) on which students can record their answers. A

word processing document

This file is only accessible to verified educators. If you would like access to this file, please enter your email address below. If you are new to the site, you will be asked to complete a short request form. If you have already been verified by the EarthLabs project, you will be taken directly to the file download page.

of the activity sheet that includes suggested answers is also available. Educators are encouraged to customize the questions and add new ones to meet specific learning goals in your location.

Teaching Notes and Tips

Engage student interest in the lab by discussing pen pals or other visitors (relatives, for instance) from distant places. If students have traveled, especially internationally, you may ask them to describe how they knew what to take along for clothing for their trip. In this age of instant information, it might be interesting to challenge students to brainstorm how they might find out about historical climate patterns without using the Internet.

This lab involves the use of several dynamic data portals. Though the sites are relatively stable government-sponsored projects, it is imperative to check that the sites are functioning properly on student computers before you commit a class period to using them! Depending on your students, you may want to practice the step-by-step instructions as a whole class before assigning students to work on their own computers. Be aware that Part C uses PDF files; if student computers can not accommodate PDF, you can prepare the maps ahead of time and project or print them for the teams.

Links to PDF files which can be printed and distributed:

Decide ahead of time about the resources that students will have for producing their climate descriptions. You might choose a prescriptive approach, for instance asking each student to submit the one or two maps or graphs (with descriptions) that they feel best describes the climate of their assigned location, or you can leave the assignment open-ended, providing a rubric to students to guide their work.

One way that you might display students' climate descriptions is by posting a map of the United States and using string or yarn and push pins to connect climate descriptions to the region of the country that they represent. This product can provide points of discussion and evidence for how weather patterns vary across the country. You can use the map to explore the effects of latitude and proximity to mountain ranges and large bodies of water on a region's climate.


Options for assessment include comparing student answers to the Stop and Think questions with the answers provided, collecting student's presentations of climate patterns for a region, and reviewing their return letters to their pen pal.

State and National Science Teaching Standards

Applicable California Science Teaching Standards

Earth Science - Energy in the Earth System

Climate is the long-term average of a region's weather and depends on many factors.

Investigation and Experimentation Standards

g. Recognize the usefulness and limitations of models and theories as scientific representations of reality.

  • Select and use appropriate tools and technology (such as computer-linked probes, spreadsheets, and graphing calculators) to perform tests, collect data, analyze relationships, and display data.

Applicable Massachusetts Science and Technology Standards (PDF - 1.3 Mb)

Earth and Space Science - Earth Processes and Cycles

  • None identified.

Applicable New York Core Curricula

Physical Setting/Earth Science (PDF - 135 Kb)

STANDARD 4 - Students will understand and apply scientific concepts, principles, and theories pertaining to the physical setting and living environment and recognize the historical development of ideas in science.

  • Key Idea 2. Many of the phenomena that we observe on Earth involve interactions among components of air, water, and land.
    • 2.1g Weather variables can be represented in a variety of formats including radar and satellite images, weather maps (including station models, isobars, and fronts), atmospheric cross-sections, and computer models..

STANDARD 6 — Interconnectedness: Common Themes. Students will understand the relationships and common themes that connect mathematics, science, and technology and apply the themes to these and other areas of learning.

  • Key Idea 2. Models are simplified representations of objects, structures, or systems used in analysis, explanation, interpretation, or design.

Applicable North Carolina Earth and Space Science Standards

1.02 Design and conduct scientific investigations to answer questions related to earth and environmental science.

  • Analyze and interpret data.
  • Communicate findings

5.02 Evaluate meteorological observing, analysis, and prediction; meteorological data depiction.

5.03 Analyze global atmospheric changes; changes in weather patterns.

Applicable Texas Essential Knowledge and Skills (TEKS)

None Identified.

Applicable National Science Education Standards (SRI) ( This site may be offline. )

Science as Inquiry (12ASI)

Abilities necessary to do scientific inquiry

  • 12ASI1.3 Use technology and mathematics to improve investigations and communications. A variety of technologies, such as hand tools, measuring instruments, and calculators, should be an integral component of scientific investigations. The use of computers for the collection, analysis, and display of data is also a part of this standard. Mathematics plays an essential role in all aspects of an inquiry. For example, measurement is used for posing questions, formulas are used for developing explanations, and charts and graphs are used for communicating results.

Understandings about Science and Technology

  • 12EST2.2 Science often advances with the introduction of new technologies. Solving technological problems often results in new scientific knowledge. New technologies often extend the current levels of scientific understanding and introduce new areas of research.

Additional Resources

Background Information

Climate and Weather Basics

Content Extension

Satellites collect a broad range of climate and weather data. Students may wish to explore temperature and precipitation data generated from satellite-based instruments. These data are available through the NASA Earth Observations (NEO), along with an analysis tool called ICE. Download a word document (Microsoft Word 2007 (.docx) 447kB Aug7 18) of instructions for exploring temperature and precipitation using NEO.

Additional Links

Climate maps of the United States provides PDF files of prepared climate maps.

PRISM data Climate mapping data from Oregon State University

NWS Advanced Hydrologic Prediction Service Precipitation data Excellent source for archived precipitation data.

Climate Powers of Ten provides an excellent overview and vision of climate variability on large scales.