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WELD COUNTY, COLORADO, SOUTHERN PART 93 , <br /> TABLE 2.--FREEZE DATES IN SPRING AND FALL <br /> Minimum temperaturel <br /> Probability ; 240 F ; 280 F i 320 F <br /> or lower ; or lower ; or lower <br /> Last freezing <br /> temperature <br /> in spring: <br /> 1 year in 10 i 1 <br /> later than-- ; April 28 1 May 11 ; May 24 <br /> 2 years in 10 <br /> later than-- ; April 22 ; May 5 i May 19 <br /> 5 years in 10 <br /> later than-- ; April 11 ; April 25 ; May 10 <br /> i <br /> First freezing <br /> temperature <br /> in fall: <br /> 1 year in 10 <br /> earlier than-- ; October 4 ;September 25 ;September 16 <br /> i <br /> 2 years in 10 <br /> earlier than-- ; October 10 ; October 1 ;September 21 <br /> 5 years in 10 <br /> earlier than-- ; October 21 ; October 11 ;September 30 <br /> 1Recorded in the period 1951-74 at Greeley, CO. <br /> TABLE 3---GROWING SEASON LENGTH <br /> Daily minimum temperature <br /> during growing seasonl <br /> Probability ; Higher ; Higher ; Higher <br /> than ; than ; than <br /> i 240 F i 280 F i 320 F <br /> Days 1 Days ; Days <br /> 9 years in 10 ; 166 ; 147 ; 122 <br /> 8 years in 10 i 175 155 129 <br /> 5 years in 10 ; 192 ; 168 143 <br /> 2 years in 10 ; 209 182 156 <br /> 1 year in 10 ; 218 i 189 163 <br /> 1Recorded in the period 1951-74 at Greeley, CO. <br />