EE ee 
GRAZING RANGES IN SOUTHERN ARIZONA. it 
TABLE I1.—Precipitation, in inches, at MacBeath’s place and at McCleary’s place, 
Santa Rita Range Reserve, Ariz., by months, 1909 to 1914, inclusive. 
MAcBEATH’S PLACE. 
Month. 1909 | 1910 | 1911 | 1912 | 1913. | 1914 | Average, 
— | : | | | | 
PELINU ATR peree ee o iis Se Sa oes cialineie eines oe 1.69 1. 40 0 0. 93 0. 60 0. 92 
Bennanyee 1. ee ss oe feeder as | 0 2.03 7 3.71 75 1.44 
MARC Roe nee ae eee fab Sleds ea st -26 5.18 60 1.29 1.49 
DIL... 6. oes eee ee Wisse 0 .18 62 23 6 . 20 
MEW cab ch beeen eeee a Bae el aaa reais 0 -38 24 40 05 21 
IMO. . USsee nS Seon eesere | 0. 85 sO 2.04 w2 42 3.44 | 1.27 
JUL a. -6ée cosa ene Se eoesa ee | 6. 45 4.64 5. 05 5. 89 5.15 4.09 | 5. 21 
PANITORUTS tien se cen es Seceeoee 4.90 3. 94 2.96 3. 69 4.58 6. 48 4.43 
SCION oes alate WERE oes 2.17 1.02 3.79 . 70 1.94 4.08 | 2.28 
CORDS Ps = Be casencdes aes a aeeaee 0 . 26 2.27 -99 58 3.45 1.29 
IMOVIETIMDEIS see ee sea ee eas 1.03 1. 43 . 04 0 3.33 2.56 1.90 
Decombenea sae se —. eee 1.36 .18 1.83 1.38 82 7.39 | 2.16 
Moraine Mueneee een lly So a | 13. 86 | 22, 23 | 19.66| 22.69/ 3418| 22.80 
| | 
McCLEARY’S PLACE. 
| 
CUMMINGS Bese seer ee ieee erie 0. 28 1.71 | 1.15 0 0. 86 | 0.37 0.73 
QO URIS Sie e a hee ser eae Seees 1.22 0 | 2.06 -08 2.98 - 95 1. 23 
MEIC Wey a arenes = ahaa eae 1.98 . 81 - 21 3. 64 . 62 1.09 1.39 
AAjDille: Sette see Wee seoaae tease | 0 Oye 38 -65 30 0 22, 
NEN ia pace aes Bebe pe Saee ee Emease 0 0 16 - 20 . 60 08 sli 
JUNG anette Sane eterna 30 . 69 1.51 56 . 86 1.55 91 
SITUA is See See a 2 eee eee 6. 40 5. 10 8. 40 8. 63 3. 64 5. 03 6. 20 
EAT USER Ses ae a eens 7.03 4.41 Tal? 3. 49 3. 51 3. 74 3. 89 
SDC OY Bee ee Ki jac 3.21 ol 1.55 0 67 1.21 1.19 
OGIO DCS SASS nA A ae Gon eee ees 0 . 26 1.95 1.55 . 02 3.11 115 
INOVellbert. sess. 2 sche ase 1.12 1.55 10 - 10 3.11 3. 40 1.56 
December. ..-..------- Some aero 1. 40 . 16 1.91 . 48 . 83 6. 67 1.91 
INOIIES 5 as SoS eae ee eee 22.94 15. 20 | 20. 56 | 19.88 | 18. 00 26. 80 20. 55 
1The observations recorded in this table were not made by regular United States 
Weather Bureau observers, though United States standard rain gauges were used. ‘The 
readings were made with the standard measuring stick between 6 and 8 o'clock the morning 
after the rainfall occurred. 
A study of these data shows that the average annual rainfall at 
MacBeath’s (elevation about 5,000 feet) has been about 11 per cent 
greater for 54 years than at McCleary’s (elevation about 4,000 feet), 
although the two stations are only about 3 miles apart on a straight 
line. They also show that the precipitation by months at McCleary’s 
has been greater than at MacBeath’s 26 out of the 66 months of the 
record. 
For 1914 records were obtained at Mr. Robinson’s camp (eleva- 
tion about 4,500 feet) that are valuable for comparison with the 
others. Records for the last four months of 1914 were also made at 
Rosemont (elevation, 5,000 feet), 9 miles away as the crow flies, on 
the other side of the mountain range. It is impossible to present 
the daily records for these different stations in any sort of diagram 
that could be printed here, but a study of the records by days brings 
out one or two generalizations which are of some importance. 
The first and most noticeable of these is the exceedingly restricted 
areas over which the rain falls at any one time. It must be under- 
stood that the most of the rain that falls in the region, particularly 
that of the so-called rainy season of summer, comes as local showers 
