CLIMATE CHARTS

Boulder, Colorado

Latitude: 39.9919 Longitude: -105.2667

Elevation: 5483.9 feet (1671.5 meters)

Boulder, Colorado Temperature Chart Daily average maximum and minimum temperatures for Boulder, Colorado Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 Boulder, Colorado Precipitation Chart Precipitation chart for Boulder, Colorado Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for BOULDER, CO Daylight chart for BOULDER, CO. Latitude 40. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for Boulder, Colorado

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 46.9 48.3 56.0 63.3 72.2 81.6 87.7 85.3 77.7 65.8 53.7 45.3
Minimum Temperature °F 22.2 23.1 29.2 35.6 43.5 51.3 57.3 56.1 48.0 37.8 28.5 21.3
Heating Degree Days °F 944 820 695 469 239 61 7 11 121 413 717 982
Cooling Degree Days °F 0 0 0 2 18 104 239 188 57 4 0 0
Precipitation in. 0.76 0.82 2.19 2.87 2.80 2.20 1.79 1.84 1.68 1.55 1.24 0.94

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 8.3 9.1 13.3 17.4 22.3 27.6 30.9 29.6 25.4 18.8 12.1 7.4
Minimum Temperature °C -5.4 -4.9 -1.6 2.0 6.4 10.7 14.1 13.4 8.9 3.2 -1.9 -5.9
Heating Degree Days °C 524 456 386 261 133 34 4 6 67 229 398 546
Cooling Degree Days °C 0 0 0 1 10 58 133 104 32 2 0 0
Precipitation cm. 1.93 2.08 5.56 7.29 7.11 5.59 4.55 4.67 4.27 3.94 3.15 2.39
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