4 ° BULLETIN 154, U. S. DEPARTMENT OF AGRICULTURE. 
varies with the degree of slope, ground cover, and the permeability, 
kind, and depth of soil, and its degree of exposure to wind and 
sun. Air humidity also plays a part. 
TABLE 1.—Climate within the lodgepole region. 
{Compiled from United States Weather Bureau reports.] 
Ap- Annual precipi- Annual tempera- 
proxi- tation. ture. 
mate 
Type of land or forest period Ele- 
Station. at station—timbered aaHiCHl ees 
pLopen. aver- | 40D |, 00,,|Maxi-| Mini-|y-,,., | Maxi-| Mini- 
ages = *|mum.| mum. “| mum.| mum. 
are 
based 
tne, | 
Colorado: Years.| Feet. | In. In. In. |Deg. F.\Deg. F.|\Deg. F. 
Gunnison. ..... Below timber line... -. 21 | 7,670} 9.48} 13.45 | 6.86] 37.0] 96 —46 
Moraine.......- Wellow\pine->. <=. - = DBO ioe Lose lWweodat |e lle | et OsSmleoO = 32 
Marble. .......- Lodgepole......:--.... 4.| 7,951 | 29.60 | 35.66 | 21.82 | 40.2] 90 —29 
Grand Lake....]..... GOVss DR er Se 5) |) 85153) | L766 | 2227745 | 12580 eae eae eer eee ae 
Georgetown....| Yellow bie (cut over)- 1D) 185550) 12582) | LONO5 sal 72 1 ese eee ee a ee 
Longs Peak... .. padeene Gee eee ee 18 | 8,600 | 20.00 | 29.84 | 13.93 | 387.8] 85 —31 
ed clittes see |b Se Ore k oe cece 20 18; 695) 1920570) 130502) et OF 96 | aes yee tee 
Columbine. . ... inpelantl spruce. ... 31°85, 766) | 25.00 eS ae |e aes | ee | eee | eee 
Frances - -| Lodgepole. as eae 8 | 9,300 | 25.89 | 33.72 | 21.65 | 40.6] 86 —14 
Breckinridge. - Bese WO ne. Soe cee 24 | 9,536 | 23.90 | 46.41 | 14.22) 33.7] 90 —37 
Spruce Lodge.. -| Engelmann spruce.... 5) 1°95.600) |) 31564, S6502) |) 265020 see |ae i eee 
Leadville... --... Open jaeerent ce keel 15 |10,248 | 14.98 | 23.76 | 11.75} 35.0] 88 —27 
Caronae-se ase Above timber line..... 6 |11,660 | 45.87 |°58.32 | 35.90} 26.2] 67 —30 
Wyoming: 
Centennial... ... Below timber line..... 10 | 8,074 | 18.59 | 27.68 | 5.14] 38.8] 40.2 | —37.9 
Woodrock!..... Lodgepole.-..........- 1), 8,500 [44539 44395 |e ee ales es So ern eel eee 
Dome wakes: s\eAlpimne. 22s: | eee Qi (BYSQT S48 | SSP ae eye 3047 Sears eee 
Yellowstone WNa- 
tional Park: 
Hort. ellow=9|| Juniper. . ss. 5.-4222--—- 9 | 6,200 | 16.93 | 20.35 | 13.31 | 38.3.| 40.2 | —36.3 
stone. 
Tower Falls 3...| Douglas fir............ 3 | 6,250 | 16.27 | 19.29 | 13.63 | 35.6] 39.3 | —33.6 
Riverside 3. .... odgepoles= =e 22-244. 4 | 6,500 | 19.58 } 23.85 | 14.38 | 35.3} 36.8 | —33.9 
Sylvan Pass 3...]_.... COE seen Peers 4 | 7,000 | 25.48 | 27.72 | 24.03 | 34.2] 34.7 | —33.7 
Snake River 3. .|..... One eee eee ee 4 | 7,000 |} 27.79 | 33.77 | 21.32 | 34.6] 36.2 ; —33.2 
Fairview 3. .._-- Doupglasyires sss spe sass 6 | 7,000 | 16.11 | 18.83 | 11.51 | 34.9] 37.0 | —32.9 
Fountain 3 Lodgepole Reyne 755th ee 3 | 7,220 | 17.90 | 19.07 | 15.88 | 33.2] 35.8 | —31/5 
Geyser: Basineos |) >>» Oe rere seeeeeas ose 4 | 7,395 | 21.23 | 22.69 | 19.33 | 34.4] 36.2 | —31.6 
Norris.) e252 do! i AO Seen eon 3 | 7,500 | 19.23 | 22.62 | 17.13) |- 33.4) 35.8)) —30)4 
Lake Yellow- |..--. Gov eee eee 5 | 7,733 | 25.04 | 42.15 | 17.39 | 31.2] 33.7 | —29.4 
stone. 
Grand Canyon3.|..... GOs aeereeas 2 | 7,900 | 25.72 | 27.81 | 23.62 | 31.9] 33.1 | —30.7 
Montana: 
Helena........-. Below timber line. .... 33 | 4,110 | 13.42 | 19.94} 6.71 | 43.3 | 103 —42 , 
ivaineston = s\se- 2 < WO. sese ease oe 14 | 4,488 | 14.36 | 19.96 | 10.68 | 45.8 | 106 —34 a 
IBOZEMIAN sey ene GO n= SS pe ete 33 | 4,700 | 18.72 | 32.63 | 14.18 | 43.2 | 112 —53 4 
Anaconda......- Juniper. ose sect eeee 11 | 5,300 | 14.99 | 18.89} 9.03} 42.1] 96 —33 i 
Buttes sae Below timber line..... 18 | 5,716 | 13.80 | 20.55 | 6.95} 42.1] 94 —29 3 
Pipestone Pass.| Douglas fir............ 3 5s 800) (E1828 74) TONGC ML aOUe pees | eee Ue ee : 
IBOWeue sees Below timber line...-. | 6 | 6,060 | 13.75 | 18.56 | 10.10] 32.7} 90 —55 ; 
Fish Creek.....| Lodgepole-.-.......... 3 | 7,800 | 23.31 | 24.70 | 20.69 | 35.1] 80 —22 | 
1 Probably reaches freezing every month; no temperature record. 
2 Likely to get freezing temperature any ‘month. 
8 Freezing pel er Saae or every month in year. 
