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i ~~ r v :1 ... iJ l Parkerson Construction GRANT) JUNCTION. COLORADO Grand Junction is located at the }iuuliou of the Colorado and Gunnison Rrvcrs 11 ~s on the Mesl slopr of the Rockirs, ^t a large mounlaln volley. The area he= n climotc marked br the wide srasoltal rang^ usual to int crior localilirs el this laldudr Thonks. however, to the prolrrlice lopnern phy' of the cicimly, sudden and srvere x e;,lher changes art eery' mfrCqucnl Thr vellee f!ner slopes from 4.800 feel near Palisndr to I ~IUO feel el the west end neor Prmla Muu ul ains .nr mt all sides al distances of from 10 l0 60 miles and math hr•ighls of 9.OD0 to over 12,000 hrl Tlus mountain valley location, with ellendnnl '.'alley breezrs. provides prolrclion from sprang and fall frost This results in a growing season nvrregmg 191 days in the city This varies ronslderably m the outlying disl rids Il is about the same m the upper valley around Palisade. and 3 l0 4 weeks shorter near the over west of Grand Junction. The growing season is sufficiently long to permit commercial groxlh of almost all frmis excrpl citrus vanches Summer graung of cattle and sheep on nearby moo nlnin ranges is rst ensive. The inlenm', conlinenlal localmn. ringed by mounln ms on ell sides. results m quite low precipil alion in ell seasons Consrquent lv. ogricull ore is drpendrnl on irrignlion. Adryuatc supplies of water are available from mountain snows and rains Gummer rams occur chiefly as scallrrcrl Kehl showrrs and thuudrrsl orrna whuli develop over nearbv mowdams Kuilrr snows are Fai rlv freq urnl. but are mosllc hghf and quo k In melt f:vcn the utfrequcnl snowx of from 1 to G inchrs srldom remain on Ihr ground 0.n pi olnngrd perwd~ Blizzard conditions m the callrv nn• Cxl timely rote Tein prral ores above 100 degrers art ~~f~eyur•u 1. and about one-tltird of the winters havr no rrndings below zero Summer days with maximum lr rn petal airs m the middle 90s and minimums m Ihr low GOs ere common Rcle Uve humidly is ern low during the summer. with values similar to other dry IocaUons such as the soul herrt parts of Sew A1e~ivo and Anzona Spells of cold winter weather are sometimes prolonged due to cold elr becoming (rapped m the vallev N'mds are usually ven~ hghf dm~mg lhr coldest wealhrr CLIP ogre m winter are n^rma!!r gradual. and ebru pl chn ages err much less freyu eel than in eastern ('olora Jo Cold waves are rare Gunny days predunnuulr in all seasons The pn•veiling wind is from the east southeast due to the valley breeze effect Thr• slrongrst minds are nssociol ed with lhundrrstorms or with pre-Iroulal weather Thcy usually arc from Ihr south or southwest '~