BLM Leg 3 #7	Annual Precipitation/Frost-Free Days Data
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1.	Describe the following terms:
a)	frost-free days ______________________________________________________
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b)	annual precipitation  _________________________________________________
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2.	Find the annual precipitation and the average number of frost-free days for selected locations. Record them below.

Annual Precipitation and Frost-Free Days
Prairie Location	Annual Precipitation	Frost-Free Days	
Churchill (non-prairie)			
Winnipeg			
Portage la Prairie			
Brandon			
Regina			
Saskatoon			
Swift Current			
Medicine Hat			
Lethbridge			
Calgary			
Edmonton			

3.	Display your data on a double bar graph. Use graph paper provided. (Be sure to label the axes on your graph and to given you graph a title.)

4.	Using the data from your bar graphs, answer the following questions:

a)	Which city and surrounding region receive the greatest amount of precipitation?
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b)	Which city and surrounding region receive the least amount of precipitation?
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c)	Which city and surrounding region have the longest growing season?
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BLM Leg 3 #7	Annual Precipitation/Frost-Free Days Data (Continued)
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d)	Which city and surrounding region have the shortest growing season?
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e)	What might be the relationship between the amount of precipitation of a region and its global position (e.g., consider latitude, longitude, distance from the Rocky Mountains)?____________________________________________________
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