MONTHLY AVERAGE TEMPERATURES FROM U. S. WEATHER BUREAU 
CLIMATIC SUMMARY OF U. S. 
Total 
Alti- above 
tude Apr. May June July Aug. Sept. Oct. 50° 
Ithaca, N. Y. 928 4478'~56.7 65.8 70.4 67.9 61.7 50.2 72.6 
Lewisburg, Pa. 450 49.4 59.9 69.0 73.3 70.8 66.4 51.8 91.2 
Mount Weather, Va.* . . 1726 44.9 57.1 664) 70.0 68.2 61.8 51.0 6273 
Washington, D. C. 75 53.1 64.2 72.7 76.8 74.5 68.1 56.6 121.0 
Harrisburg, Pa. 368 50.7 61.7 70.3 74.5 72.1 64.9 54.0 98.2 
New York City, N. Y. , 314 48.5 59.4 69.0 74.5 72.8 65.9 55.2 96 8 
Hartford, Conn. 100 46.7 57.5 67.1 71.6 68.9 61.7 51.2 78.0 
Albany, N. Y. 97 46.7 59.2 68.4 72.3 70.5 62.5 5072 83H 
Pittsburgh, Pa. 750 51.0 62.6 71.1 74.6 72.5 66.1 54.9 102.8 
Columbus, Ohio. 744 51.1 62.5 71.0 75.2 72.7 66.9 54.7 104.1 
Indianapolis, Ind. 720 52.4 63.3 72.3 76.1 73.9 66.9 55.1 111.0 
Evansville, Ind. 384 55.1 67.0 75.0 78.6 78.1 71.6 59.4 134.8 
Madison, Wis. 860 45.6 57.6 67.5 72.0 69.8 62.3 50.0 79.0 
Des Moines, Iowa. 805 50.6 61.1 70.2 74.9 73.0 65.1 53.3 98.2 
Omaha, Nebr. 1034 50.5 62.5 71.6 76.5 74.4 65 8 54.2 105.5 
Topeka, Kans. 896 53.7 65.0 73.5 77.6 76.0 68.3 56.3 128.4 
* 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 13^2 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 11 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. 
I he 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 satisfactorilv at 
Lewisburg, Pa., 105 miles south of 
Ithaca and at a slightly lower elevation 
and with two weeks longer growing sea¬ 
son. W ith 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. Relnler’s 
map (page 7) very helpful, and the U. S. 
Weather Bureau has records for all sec¬ 
tions of the United States. 
Therefore, bv 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. 
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