Results 



21. Present year. Average atmospheric pressure for the year was 

 1016.6 mh. The lowest monthly average pressures occurred In January, May, and 

 June, while the highest occurred in February, March, October, and December 

 (Table 3) . 









Table 



3 













Pre 



cipitat 



ion Statistics 











Total 

 1985, mm 



126 







Mean 





1978-1985 



Extrt 







1978- 

 1984, mm 



94 



1978- 

 1985, mm 



98 



>mes 



Month 



Maxima , mm 

 180 



Mini 

 45 



ima , mm 



Jan 





Feb 



68 





86 





84 



127 



46 





Mar 



35 





98 





90 



168 



35 



(1985) 



Apr 









111 





97 



182 







(1985) 



May 



35 





88 





81 



239 



35 



(1985) 



Jun 



62 





77 





75 



130 



27 





Jul 



67 





90 





87 



200 



19 





Aug 



30 





103 





94 



220 



30 



(1985) 



Sep 



71 





94 





91 



160 



5 





Oct 



143 





55 





66 



143 (1985) 



20 





Nov 



145 





80 





88 



145 (1985) 



26 





Dec 



4 





83 





73 



131 



4 ( 



.'1985) 



Annual 



786 





1079 





1042 









Monthly avg 



66 





88 





85 









22. 



Present versus 



past 



years. 



The 



average 



atmospheric pre; 



ssure 



for 



1985 was 0.3 mb lower than in prior years. Although February through April 

 had significantly higher monthly mean pressures (Figure 4) the largest dif- 

 ference (6.3 mb below climatology) was the very low pressures experienced in 

 January. 



23. All years. Typically the monthly mean atmospheric pressures are 

 lowest during March and April and highest in October and December. The annual 

 average is 1016.8 mb, very near standard atmospheric pressure. 



18 



