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Science Launch G3 / Week 10 / Tuesday
2/6
Week 10 · Weather by the Numbers

Tuesday

Read a weather table
// Measuring weather and finding patterns
⏱ about 15 min

Tuesday: Read a Weather Table

Nova projects a table of numbers in the air. "This is real weather data," she says. "It is from Chicago, Illinois."

Rocket groans. "So many numbers!"

Raven points at one row. "What do you notice about this day? It is very different."

Nova blinks. "Read one row at a time," she says. "Then compare."

A real week of weather

Weather stations record the weather every day.

This table shows real measurements from the Chicago O'Hare Airport weather station.

It covers April 1 to April 7, 2025. The data comes from NOAA, a weather science agency.

High means the warmest temperature that day. Low means the coldest.

Date (2025)High (°F)Low (°F)Rain (inches)
April 145330.00
April 271401.25
April 356400.00
April 449380.06
April 554390.10
April 650350.00
April 746270.00
READ THE REAL DATA
  • Read the question.
  • Tap your answer.
Which day had the warmest high temperature?
Which day had the most rain?
Which day had the coldest low temperature?
How many days in the table had no rain at all? Type a number.
WHY THIS EXERCISEApril 1, 3, 6 and 7 show 0.00, so four days had no rain.
StatementTrue or false?
Weather can change a lot from one day to the next.?
Every day in this week had the same high temperature.?
The low is the coldest temperature of the day.?
WHY THIS EXERCISEThe high jumped from 45 to 71 in one day, so weather changes a lot.

Finding patterns in a table

To compare two days, look at the same column for both rows.

To find the warmest day, look for the biggest number in the High column.

To see how much it changed in one day, subtract the low from the high.

On April 2, the high was 71 and the low was 40. That is a change of 31 degrees.

MORE TABLE QUESTIONS
  • Read the question.
  • Tap your answer.
On how many days in the table did it rain at least a little?
Which day had the biggest change from low to high?
Which two days had the same low temperature of 40?
The high on April 1 was ____ degrees.
The rain on April 5 was ____ inches.
The low on April 6 was ____ degrees.
On April 1, what was the high minus the low? Type a number.
WHY THIS EXERCISE45 minus 33 is 12, so the temperature changed 12 degrees.
StatementTrue or false?
This data came from a real weather station.?
NOAA is a weather science agency.?
April 7 had more rain than April 2.?
WHY THIS EXERCISEApril 2 had 1.25 inches and April 7 had none.

Great data reading! Tomorrow you build your own rain gauge.

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