Table B12 

 1983 Mean, Standard Deviation, and Extreme 



"m. 



and 



T for Gage 620 













Standard 















Standard 



Mean 



Deviation 













Mean 



Deviation 



Period 



Period 



Extreme 





Number 



Mor 



ith 



Height, m Height, m 

 1.4 0.7 



sec 

 8.5 



sec 



Height, m 

 4.5 



Date 

 28 



Observations 



Jan 



2.4 



119 



Feb 





1.7 



0.7 



9.9 



2.9 



4.3 



14 



112 



Mar 





1.4 



0.8 



8.9 



2.5 



4.7 



25 



123 



Apr 





0.9 



0.5 



9.1 



2.6 



2.9 



24 



113 



May 





0.8 



0.2 



7.7 



1.8 



2.1 



17 



121 



Jun 





0.8 



0.4 



7.8 



2.0 



2.1 



9 



117 



Jul 





0.6 



0.2 



8.7 



2.3 



1.3 



7 



119 



Aug 





0.7 



0.3 



8.0 



2.1 



2.1 



13 



123 



Sep 





1.1 



0.8 



8.6 



2.8 



3.9 



29 



119 



Oct 





1.3 



0.6 



9.0 



2.9 



3.0 



21 



124 



Nov 





0.8 



0.4 



8.5 



2.9 



2.1 



10 



115 



Dec 





1.2 



0.7 



8.4 



2.8 



3.3 



12 



117 



Jan- 



Mar 



1.5 



0.8 



9.1 



2.7 



4.7 



Mar 



354 



Apr- 



•Jun 



0.8 



0.4 



8.2 



2.3 



2.9 



Apr 



351 



Jul- 



■Sep 



0.8 



0.6 



8.4 



2.5 



3.9 



Sep 



361 



Oct- 



•Dec 



1.1 



0.6 



8.7 



2.9 



3.3 



Dec 



356 



Annual 



1.0 



0.7 



8.6 



2.6 



4.7 



Mar 



1,422 



B42 



