■14 -* — 1 1 1 1 1 1 1 1 1 1 r 



Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 



Month 



E 



c 

 o 



o 

 o 



-\ 1 1 1 1 1 1 1 1 1 1 r 



Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 



Month 



Figure 3.5 



A. Forty-two year (1943-1985) mean and 

 standard deviation of monthly temperatures at 

 Roy 8NE weather station. B. Forty-seven year 

 (1939-1985) mean and standard deviation of 

 monthly precipitation at Roy 8NE weather 

 station. 



48 



