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SUMMIT ENGINEERING C 0 1 ENGINEERS & LAND SURVEYORS <br /> Mail: P.O. Box 1897 Alamosa, CO 81101 P: 719-589-6147 E: summitengco@gmail.com <br /> The normal monthly mean temperature ranges from approximately 16°F in January to <br /> 65°F in July. The aridity depresses normal seasonal snowfall to approximately 30 inches <br /> a year. The altitude and dryness of the air cause day-night temperature differences to <br /> be severe year-round, averaging 35.4 OF throughout the year. <br /> Climate data for Alamosa, Colorado (1981-2010 norma Is,extremes 1906-present) <br /> Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year <br /> 63 66 76 120000081 71 63 <br /> Record high°F(°C) <br /> -17 -19 -24 -28 <<, -27 -22 -17 <br /> Mean maximum°F(°C) 48.6 53.9 65.2 73.2 81.5 8 :2 89.9 86.8 82.3 74.3 62.6 50.8 <br /> -9.2 -12.2 -18.4 -22.9 -27.5 =31.2 42 -30 -27.9 -23.5 -17 -10.4 <br /> 34.3 39.9 50.1 59.3 69.1 78.6 82.3 79.5 73 61.7 46.9 35.2 59.2 <br /> Average high°F(°C) <br /> -1.3 -4.4 -10.1 -15.2 -20.6 -25.9 -28 -26 -22.8 -16.5 -8.3 -1.8 -15.1 <br /> 1 5.7 16.9 24.4 33.4 40.6 46.9 45.9 36.9 24.5 12.1 0.5 23.8 <br /> Average low°F(°C) <br /> (-8.4) (-4.2) -0.8 -4.8 -8.3 -7.7 -2.7 (-4.2) (-11.1) (-17.5), (-4.5) <br /> Mean minimum °F(°C) <br /> 10 20.4 30 38.4 37.3 24.1 8.9 <br /> Mf=H � <br /> (-12.2) (-6.4) (-1.1) -3.6 -2.9 (-4.4) (-12.8) <br /> Record low°F(°C) <br /> MWE 11 23 28 29 15 MME <br /> (-12) (-5) (-2) (-2) (-9) <br /> 0.26 0.26 0.53 0.59 0.58 0.49 0.97 1.27 0.91 0.68 0.42 0.35 7.31 <br /> Average precipitation inches(mm) <br /> -6.6 -6.6 -13 -15 -15 -12 -25 -32 -23 -17 -11 -8.9 -185.1 <br /> Average snowfall inches(cm) 0.9 0 0 0 0 2.1 ME 27.6 <br /> HMME -2.3 0 0 0 0 -5.3 -69.8 <br /> Average precipitation days(>_0.01 3.5 3.9 5.4 5.2 5.6 5.1 8.1 6.8 4.7 3.9 4.5 66.7 <br /> in) <br /> Average snowy days(>_0.1 in) 3.6 3.6 4.2 2.5 0.9 0 0 0 0 1 A 2.8 4.2 22.9 <br /> Job # 1200710MP - A Page136of78 <br />