BOTANICAL SC H VEY— 81K;AR GROVE REGION 



255 



Climatolog!/. Those features of the nieteorology which go to make 

 up the climate have beeu compiled and })ublished ny J. Warren Smith' 

 in a report covering the state of Ohio as a whole and earlier as Section 

 71, South-central Ohio (1910) in the general sunnuary of climatological 

 data for the United States. It is from the introductoiy matter of the 

 latter report, as more specifically describing conditions in our area 

 than the general bulh^iu, that the direct <|uotations given below were 

 taken. 



No records have been taken within the area itself but the data 

 given for surrounding towns, since they are reasonably concordant, 

 give, it is believed, an accurate idea of th(^ larger climatic features affect- 

 ing vegetation. The stations selected are: Lancaster, about five mih^s 

 north of the area with a record twelve years in length, from 1896 to 

 1908; Logan, about 10 miles east of the area, with records for sixteen 

 years, from 1884 to 1900: Circleville, about 15 miles west of the area, 

 with records of twenty years, from 1888 to 1908 ; McArthur. about 

 twenty miles to the south, with records for tlie five years from 1894 

 to 1899, and parts of three additional years ; while the observations 

 of the regular Weather Bureau station at Columbus, thirty-five miles 

 northwest, with records extending back to 1878, liave been used for 

 comparison. 



The monthly mean temperatures in degrees Farenheit of those 

 stations whose records are available are as follows : 



MONTHLY MEAN TEMPERATUEES 



.Sco 



Lancaster . . . |13|30.2|28.2|42.0|50.5|62.3|69.1|74.0|71.7|66.5|54.0|42.2|32.3| 51.9 

 Circleville . . . [ 14|30.2|28.1 143 3|5].8|63.2!70.7|7o.3|73.3|68.0|o4.9|42.4|32.7| 52.7 

 Columbus . .,|31[28.9I30.1[39.6|51.1|62.5|71.0|75.2|72.7|66.9|54.7|41.8|32.7| 52.2 



(35.7 

 67.0 

 66.6 



The highest and lowest tem])ei-;itures evei- i-eeoi'ded are 102" and 

 ■21° at Circleville, 99° and -21° at Lancaster, 104^ sind -20° at Colniii- 

 ])us. Tlie highest teiiipnnlnri' is usn;dl\' i-caclifil in .July, l)nt Angnst 

 is nearly as hot. The lowest temi)ei';it nres ai'e sometimes reached ii; 



1. Smith. J. Warren. The Climate of Ohio. Bull. O. Ag. Ex. Sta. 235:185- 



2(19. I'.M2. 



