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Weather: Rainfall (Grades 8-11)

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The following table includes the normal high and low temperatures and precipitation. The extreme temperatures are based on records through 1990 at the station listed and may not agree with the state records.
(World Almanac 1998 p. 180)

State

Station

Extreme High Temperature in F Extreme Low Temperature in F

Normal Annual Precipitation

in inches

Alabama

Mobile

104

3

63.96

Alaska

Anchorage

85

-34

15.91

Alaska

Barrow

79

-56

4.49

Arizona

Phoenix

122

17

7.66

Arkansas

Little Rock

112

-5

72.10

California

Los Angeles

112

28

14.77

California

San Diego

111

29

9.9

California

San Francisco

106

20

19.70

Colorado

Denver

104

-30

15.40

Connecticut

Hartford

102

-26

44.14

Delaware

Wilmington

102

-14

40.84

District of Columbia

Washington- National

104

-5

38.63

Florida

Jacksonville

105

7

51.32

Florida

Miami

98

30

55.91

Georgia

Atlanta

105

-8

50.77

Georgia

Savannah

106

3

49.22

Hawaii

Honolulu

94

53

22.02

Idaho

Boise

111

-25

12.11

Illinois

Chicago

104

-27

35.82

Illinois

Moline

106

-27

39.08

Indiana

Indianapolis

104

-23

39.94

Iowa

Des Moines

108

-24

33.12

Kentucky

Lexington

103

-21

44.55

Kentucky

Louisville

105

-20

44.39

Louisiana

New Orleans

102

11

51.88

Maine

Caribou

96

-41

39.60

Maine

Portland

103

-39

44.34

Maryland

Baltimore

105

-7

40.76

Massachusetts

Boston

102

-12

41.51

Michigan

Detroit

104

-21

32.62

Michigan

Sault Ste. Marie

98

-36

34.23

Minnesota

Duluth

97

-39

30.00

Minnesota

Minneapolis

105

-34

28.32

Mississippi

Jackson

106

2

55.37

Missouri

Kansas City

109

-23

37.62

Missouri

St. Louis

107

-18

37.51

Montana

Helena

105

-42

11.60

Nebraska

Omaha

114

-23

29.86

Nebraska

Scottsbluff

109

-42

15.27

Nevada

Reno

105

-16

7.53

New Jersey

Atlantic City

106

-11

40.29

New Mexico

Albuquerque

105

-17

8.88

New York

Albany

100

-28

36.17

New York

Buffalo

99

-20

38.58

New York

New York-La Guardia

107

-3

42.12

North Carolina

Asheville

100

-16

47.59

North Carolina

Raleigh

105

-9

41.43

North Dakota

Bismarck

109

-44

15.47

Ohio

Cleveland

104

-19

36.63

Ohio

Columbus

102

-19

38.09

Oregon

Portland

107

-3

36.30

Pennsylvania

Philadelphia

104

-7

41.41

Pennsylvania

Pittsburgh

103

-18

36.85

Rhode Island

Providence

104

-13

45.53

South Carolina

Charleston

104

6

51.53

South Dakota

Huron

112

-39

20.08

South Dakota

Rapid City

110

-30

16.64

Tennessee

Memphis

108

-13

52.10

Tennessee

Nashville

107

-17

47.30

Texas

Galveston

101

8

42.28

Texas

Houston

107

7

46.07

Utah

Salt Lake City

107

-30

16.18

Vermont

Burlington

101

-30

34.47

Virginia

Norfolk

104

-3

44.64

Virginia

Richmond

105

-12

43.16

Washington

Seattle-Tacoma

99

0

37.19

Washington

Spokane

103

-25

16.49

Wisconsin

Milwaukee

103

-26

32.93

Wyoming

Lander

101

-37

13.01

1. What is the largest amount of precipitation recorded at any on the these site?

2. What is the lowest extreme temperature recorded in this table?

3. Determine the average of the extreme temperatures for each site.

The following is a scatter plot of the average extreme temperatures and the normal precipitation for each site.

 

3. Describe the relationship between the average extreme temperature and the normal precipitation indicated in the scatter plot.

4. The lower right hand corner of this plot shows a cluster of five sites. Using both the table and graph, identify these five sites and determine if there is any relationship among them.

5. What observations can you make about the relationship between the temperature and the amount of rainfall in these five cities?

 

The following table is from Greener Pastures Relocation Guide, 1984.

City

Mean inches of Rainfall

Percent Sunshine

Los Angeles, CA

14

73

Salt Lake City, UT

15

70

Phoenix, AZ

7

86

Las Vegas, NV

9

84

San Francisco, CA

20

67

Denver, CO

16

70

Wichita, KS

31

65

Oklahoma City, OK

31

67

Albuquerque, NM

8

77

Houston, TX

48

57

Little Rock, AR

49

63

New Orleans, LA

57

59

Nashville, TN

46

57

Jackson, MS

49

60

Mobile, AL

60

67

Charlotte, SC

66

43

Raleigh, NC

60

43

Miami, FL

66

60

St. Louis, MO

58

36

Louisville, KY

57

43

Norfolk, VA

63

45

6. Which city has the maximum percentage of sunshine?

7. Which three cities have the least amount of rainfall?

8. Create a scatter plot with the rainfall on the horizontal axis and the percent of sunshine on the vertical axis.

9. Describe the graph in your own words.

10. You can notice a cluster of points in the lower right of the graph. Explain what you know about these cities simply by their locations on the graph.

11. Draw a line on the graph that represents the relationship among the data.

12. Determine the slope of your line, and explain what it tells you about the relationship between the data.

13. Describe the x- and y-intercepts in words.

14. How can you tell how well this lines fits the data?