256 



THE CLIMATE OF CECIL COUNTY 





during which the highest temperatures of the year are most probable. 

 During the period from 1865 to 1875 a temperature of 100° was 

 recorded only once at Woodlawn, namely, on July 14 and 15, 1868. 

 This record was probably exceeded by two or three degrees in July, 

 1900, as a reading of 103° was reported by Professor A. F. Galbreath 

 at Darlington, Harford county, but a few miles distant. Tempera- 

 tures of 90° and above occur almost annually during the months of 

 June, July and August, frequently in September, and occasionally in 

 May. The lowest temperature of the year is most likely to occur in 



TABLE IV. 



AVERAGE DAILY, MONTHLY AND ANNUAL RANGE, AND ABSOLUTE MONTHLY AND 

 ANNUAL RANGE OF TEMPERATURE. 



Based upon observations at Woodlawn 



, Cecil County, Maryland. 







Authority. 



Jan. 



Feb. 



Mar. 



Apr. 



May 



June 



July 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Ann'l 



Average 2 P. M. 



























observations. 



37.0 



38.7 



45.8 



58.5 



68.2 



79.2 



83.7 



80.2 



74.3 



62.1 



50.0 



38.1 



59.6 



Average 7 A. M. 





























observations. 



26.1 



26.8 



33.6 



47.0 



57.2 



68.9 



73.4 



69.6 



61.8 



48.8 



37.2 



27.9 



48.2 



Average daily 





























range. 



10.9 



11.9 



12.2 



11.5 



11.0 



10.3 



10.3 



10.6 



12.5 



13.3 



12.8 



10.2 



11.4 



Average 





























maximum. 



56.3 



59.1 



66.8 



76.3 



85.7 



90.9 



93.9 



89.8 



88.1 



77.3 



67.9 



57.2 



94.1 



Average 





























minimum. 



3.3 



5.1 



14.2 



30.6 



42.5 



56.5 



62.9 



58.1 



46.0 



33.4 



22.3 



7.8 



1.1 



Average monthly 





























range. 



53.2 



54.0 



52.6 



45.7 



43.2 



34.4 



31.0 



31.7 



42.1 



43.9 



45.6 



49.4 



93.0 



Absolute monthly 





























maximum. 



62 



76 



80 



88 



92 



94 



100 



94 



92 



85 



78 



70 



100 



Absolute monthly 





























minimum. 



-10 



—4 







22 



38 



52 



58 



54 



41 



28 



16 



-4 



-10 



Absolute range. 



72 



80 



80 



66 



54 



42 



42 



40 



51 



57 



62 



74 



110 



January, although it frequently occurs in the early part of February. 

 The coldest day between 1865 and 1875 occurred in January of 1873 

 with a minimum of 10° below zero. This record was probably low- 

 ered by one or two degrees during the intense cold of February 10 

 to 13, 1899, when nearly all records of extreme cold within the State 

 of Maryland were lowered. The average minimum temperature for 

 the month of January is 3.3°, and of February 5.1°. The month 

 of April, with a probable minimum of 30.6°, and with the possibility 

 of a temperature as low as 22°, is subject to heavy frosts as late as 

 the 15th of the month. In the fail the first heavy frost is likely to 

 occur about the middle of October. The period of five months from 



