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April Showers

April Showers

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They say that April Showers bring May flowers, so what better time to look at rainfall statistics than April? Study this chart and see if you can answer the questions that follow.

Greatest Rainfalls

  Place Date Inches Centimeters
1 minute (world) Unionville, MD July 4, 1956 1.233.1
20 minutes (world) Curtea-de-Arges, Romania July 7, 1889 8.120.5
42 minutes (world) Holt, MO June 22, 1947 1230.5
12 hours (world) Grand Ilet, La Reunion January 26, 1980 46114
24 hours (world) Foc-Foc, La Reunion January 7-8, 1966 72182.5
24 hours (N. Hemisphere) Paishih, Taiwan September 10-11, 1963 49125
24 hours (Australia) Bellenden Ker, Queensland January 4, 1979 44114
24 hours (U.S.) Alvin, Texas July 25-26, 1979 43109
24 hours (Canada) Ucluelet Brynnor Mines, British Columbia October 6, 1967 1949
5 days (world) Commerson, la Reunion January 23-28, 1980 156395
1 month (world) Cherrapunji, India July 1861 366930
12 months (world) Cherrapunji, India August 1860-August 1861 1,0422,647
12 months (U.S.) Kukui, Maui, Hawaii December 1981-December 1982 7391878

Don't forget your umbrella...

  1. In Romania in 1889 it rained 8.1 inches in 20 minutes. If it had rained for an hour at the same rate, how many inches would have fallen?

  2. In 1947 in Holt, Missouri it rained 12 inches in 42 minutes. About how much rain is that a minute? Show your answer as a decimal and a fraction.

  3. The 1-month and 12 month records for rainfall took place in India in 1861. Look at how much rain fell in July, and then determine how much fell the other 11 months.

  4. What year and what place hold the record for annual rainfall in the US?

  5. How much more did it rain an hour in La Reunion in 1966 than it rained in Alvin Texas in 1979?

AVERAGE ANNUAL RAINFALL OF 100 US CITIES
   :                                                                                Average Annual Precipitation
City Inches Days
Albany, NY 35.74134
Albuquerque, NM 8.1259
Anchorage, Alaska 15.20115
Asheville, NC 47.71124
Atlanta, GA 48.61115
Atlantic City, NJ 41.93112
Austin, TX 31.5083
Baltimore, MD 41.84113
Baton Rouge, LA 55.77108
Billings, MT 15.0996
Birmingham, AL 54.52117
Bismark, ND 15.3696
Boise, ID 11.7192
Boston, MA 43.81127
Bridgeport, CT 41.56117
Buffalo, NY 37.52169
Burlington, VT 33.69153
Caribou, ME 36.59160
Casper, WY 11.4395
Charleston, SC 51.59113
Charleston, WV 42.43151
Charlotte NC 43.16111
Cheyenne, WY 13.3198
Chicago, IL 33.34127
Cleveland, OH 35.40156
Columbia, SC 49.12109
Columbus, OH 36.97137
Concord, NH 36.53125
Dallas-Ft. Worth, TX 29.4678
Denver, CO 15.3188
Des Moines, IO 30.83107
Detroit, MI 30.97133
Dodge City, KS 20.6678
Duluth, MN 29.68135
El Paso, TX 7.8247
Fairbanks, AK 10.37106
Fargo, ND 19.59100
Grand Junction, CO 8.0072
Grand Rapids, MI 34.35143
Hartford, CT 44.39127
Helena, MT 11.3796
Honolulu, HI 23.47100
Houston, TX 44.76105
Indianapolis, IN 39.12125
Jackson, MS 52.82109
Jacksonville, FL 52.76116
Juneau, AK 53.15220
Kansas City, MO 29.2798
Knoxville, TN 47.29127
Las Vegas, NV 4.1926
Lexington, KY 45.68131
Little Rock, AR 49.20104
Long Beach, CA 11.5432
Los Angeles, CA 12.0836
Louisville, KY 43.56125
Madison, WI 30.84118
Memphis, TN 51.57107
Miami, FL 57.55129
Milwaukee, WI 30.94125
Minneapolis-St. Paul, MN 26.36115
Mobile, AL 64.64123
Montgomery, AL 49.16108
Mt. Washington, NH 89.92209
Nashville, TN 48.49119
Newark, NJ 42.34122
New Orleans, LA 59.74114
New York, NY 42.82119
Norfolk, VA 45.22115
Oklahoma City, OK 30.8982
Olympia, WA 50.96164
Omaha, NE 30.3498
Philadelphia, PA 41.42117
Phoenix, AZ 7.1136
Pittsburgh, PA 36.30154
Portland, ME 43.52128
Portland, OR 37.39154
Providence, RI 45.32124
Raleigh, NC 41.76112
Reno, NV 7.4951
Richmond, VA 44.07113
Roswell, NM 9.7052
Sacramento, CA 17.1058
Salt Lake City, UT 15.3190
San Antonio, TX 29.1381
San Diego, CA 9.3243
San Francisco, CA 19.7163
Savannah, GA 49.70111
Seattle-Tacoma, WA 38.60158
Sioux Falls, SD 24.1296
Spokane, WA 16.71114
Springfield, IL 33.78114
St. Louis, MO 33.91111
Tampa, FL 46.73107
Toledo, OH 31.78137
Tucson, AZ 11.1452
Tulsa, OK 38.7789
Vero Beach, FL 51.41N/A
Washington, DC 39.00112
Wichita, KS 28.6185
Wilmington, DE 41.38117
6. Based on inches of rainfall, what is the wettest city? The driest?

7. in which city does it rain the most days of the year? How many days does it rain? In which city does it rain the least amount of days? How many days does it rain?

8. What city comes closest to raining one fourth of the year? How many days does it rain?

9. In Spokane, WA and Springfield, IL, it rains 114 days of the year. In which city does it rain harder? Explain your answer.

10. Seattle, WA, Tulsa, OK, and Washington, DC all get about 39 inches of rainfall a year. In which of the three cities does it rain harder? Explain.

11. Which city comes closest to getting about a foot of rain annually? Two and a half feet? Five feet?

12. Which is the driest city in Texas?

13. Which is the wettest city in Florida?

14. Make a line plot to show how many cities have from 3 to 4 feet of rain annually. Use only whole numbers starting with 36.


April Showers Solutions

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