MONTHLY AVERAGE TEMPERATURES FROM U. 8S. WEATHER BUREAU 
CLIMATIC SUMMARY OF U.S. 



























Total 
Alti- above 
tude Apr. May June July Aug. Sept. Oct. 50° 
Ithaca N.S Yee, O28 wr Aa OOF le 054 Gue OP 180 (298 0 Le eee nO 
Lewisbtre Parmer... 45024494955 91.95069" 0737230070 .8 9 66 4 Oe O12 
Mount: Weather? Var= 726 2447950575 66.0% 70.0 968223761. Sasi 0 6283 
Washington, D. C...... (5 geo fl ROL tp 31 2a eee OF Oli Og O00 BLD 0+ 0 MeL LO 
Hatrisburg. ba eee BOG m0 ce Ol 7 ga Ore t4e et ale 0449084, Ome OG eo 
Newsy ork: City. N.Y oeegeees 14.8 £5 059 e092 Ome 4m e009. 9g ee O08G 
Hartiord, Conte ae LOOTSAG (eo eo 0 le Ome 0G. Oe Ole leo 0 
Al banyai Ne eee ae OU ss 160 0G 14 or eee om 02, Due oU ce oonL 
Pittsburghe Pare ee T50geo le Ogee O2e0mns lam 4) 0 mr 206 lee 49 me LO2EG 
Columbus, Ohio....... (44a lo Be O2e ee le Opetroe 2 ae ee 00.98 254, 7 O4e) 
Indianapolis, Ind....... (ZORRO Ze4ee Osea mel oco 1 OvlLi( on 9ss O0L9er on, lal Lie O 
Evansville, Ind........ Doteeoot eo GU et os 0 ocOmeionL eal On 00T4lo456 
Madison, Wis.......... HU Ec le ere Teds TOY Yas) SI QE 
Des Moines, Iowa..... SO nm OU SOSRO lela 0 G2 109 i Ome Oor 1 55 6 ons 
OmialiayNebrees eee 10342550250. 6220.e Om O20 a4, 105: Oo 04,2 Ooo 
lopekay Kanswe ee SOOMao ake Use me (OME OL OU OU Sou D0ro eel cone 
* Mount Weather is on top of the Blue Ridge near our Nursery. Sunny Ridge 
Nursery is on the slope of the mountain, elevation 800-1400 feet. According to the 
rules of the meteorologists it should be between 114 and three degrees warmer than 
Mount Weather. Therefore my total above 50° is probably about 73 at the top 
and 84 at the bottom. 
quality near the northern range of the 
species. The oranges of Florida and Cali- 
fornia are better than the oranges of 
Brazil. 
The Range of the Pecan 
Where will the Pecan grow? It will 
grow much farther north than it can 
ripen its fruit. Seedlings from Texas 
thrive in the climate of Pennsylvania. 
There are a few healthy old seedling trees 
in Connecticut. A beautiful tree in a park 
at Hartford, Connecticut, has a girth of 
over 1] feet. It is apparently a southern 
seedling planted in 1858. I have seen lusty 
Pecan trees in Ontario near Toronto, 
grown from Georgia seed in a_ place 
where they could not possibly ripen 
their fruit. The Pecan seems to require a 
large amount of summer heat to bring the 
nuts through to fruition. One measure of 
this heat is the total number of degrees 
of monthly average temperature above 
50° F, The accompanying table shows 
some of these facts. 
The varieties I sell have been perfectly 
hardy as to winters, and have ripened 
their nuts at the nursery. After two cool 
summers in the last twelve years the ker- 
nels were not developed fully enough to be 
commercially marketable, but they were 
of good flavor for home use. 
Now the record at Ithaca (—35° F. 
winter 1933-34) is that the Pecans and 
Hiccans that I sell are hardy trees and 
make beautiful shade but do not ripen 
their nuts. They do ripen at my nursery 
and also regularly and satisfactorily at 
Lewisburg, Pa., 105 miles south of 
Ithaca and at a slightly lower elevation 
and with two weeks longer growing sea- 
son. With this table, and the facts of your 
own local climate in hand, you can figure 
out the probabilities of your location bet- 
ter than I can. You will find Dr. Rehder’s 
map (page 7) very helpful, and the U. S. 
Weather Bureau has records for all sec- 
tions of the United States. 
Therefore, by the aid of this table, you 
can, by knowing your own climate, decide 
what the chances are of the Pecan ripen- 
ing its nuts with you. 
