MONTHLY SUMMARY 



OCTOBER 1953 



Barometer, in inches 



(Readings reduced to sea level) 



Maximum 30.462 



Minimum 29.522 



Mean semi-daily 30.061 



Range 0.940 



Air Temperalure, in degrees F. 



Highest 81, 3rd 



Lowest 25, 14th 



Mean 53.6 



Range 56 



Highest mean daily 64, 4th, 20th 



Lowest mean daily 45, 7th, 8th, 13th 



Mean maximum 66.5 



Mean minimum 40.7 



Greatest daily range 42, 14th, 15th 



Least daily range 8, 6th, 29th 



Degree-days of heating load for month. 353 

 Degree-days cumulative for season 494 



Precipitation, in inches 



Precipitation 5.15 



Snow — 



Maximum precip. in 24 hrs 1.26 



Number of days with .01 or more 9 



Wind, in miles 



Total movement 2364 



Greatest daily movement 209, 30th 



Least daily movement 12, 27th 



Mean hourly velocity 3.2 



Maximum velocity 29, 30th 



Wind, direction 



Prevailing direction NNW 



North, days 7 



Northeast, days 3 



East, days — 



Southeast, days — 



South, days 6 



Southwest, days — 



West, days — 



Northwest, days 15 



Weather 



Mean relative humidity, percent 72.6 



Mean cloudiness, percent 44.0 



Number of clear days 14 



Number of fair days 10 



Number of cloudy days 7 



Number of hours bright sunshine. . . . 172.5 

 Percent of possible hours of 



bright sunshine 50.3 



Thunder and lightning — 



First Frobt 



Normal 



30.53 



29.42 



30.06 



1.11 



79.4 

 23.4 

 50.5 

 56.0 



Extremes 



3.29 



4074 



5.4 

 29.5 



W 



69.0 

 48 

 10 

 10 

 11 

 175.0 



51.3 



30.68, 1929 

 29.00, 1926 



1.47, 1926; 0.76, 1899 



90.5, 1908 



17, 1936 



57.6, 1949; 43.2, 1890 



8.81. 1911; 0.01, 1924 

 15, 1913; 1, 1897, 1924 



5467, 1910; 2540, 1894 

 42, 1937 



67, 1932; 18, 1924 



21, 1938; 1, 1911 



17, 1924; 3, 1938 



19, 1896; 3, 1924 



232, 1923, 1938; 91, 1913 



Note — The first column in the above summary lists observations made during the month. 

 The second column lists the averages based on observations made from 1889 to 1938, 

 except that humidity records are based on observations made from 1929 to 1938. The 

 third column lists extremes observed from 1889 to 1952. 



