CLIMATE CHARTS

Duncan, Oklahoma

Latitude: 34.5011 Longitude: -97.9592

Elevation: 1125 feet (342.9 meters)

Duncan, Oklahoma Temperature Chart Daily average maximum and minimum temperatures for Duncan, Oklahoma 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 Duncan, Oklahoma Precipitation Chart Precipitation chart for Duncan, Oklahoma 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 DUNCAN, OK Daylight chart for DUNCAN, OK. Latitude 34.5. 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 Duncan, Oklahoma

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 51.5 55.9 64.0 73.0 80.0 87.7 93.2 93.5 85.3 74.8 63.3 52.4
Minimum Temperature °F 28.1 32.2 40.6 49.3 59.0 67.3 71.2 70.6 62.7 50.8 39.7 29.8
Heating Degree Days °F 781 587 404 165 32 1 0 0 19 138 412 741
Cooling Degree Days °F 0 1 10 49 172 376 533 528 289 70 7 0
Precipitation in. 1.51 2.03 2.96 3.56 5.28 4.96 2.60 2.78 3.64 4.26 2.31 2.12

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 10.8 13.3 17.8 22.8 26.7 30.9 34.0 34.2 29.6 23.8 17.4 11.3
Minimum Temperature °C -2.2 0.1 4.8 9.6 15.0 19.6 21.8 21.4 17.1 10.4 4.3 -1.2
Heating Degree Days °C 434 326 224 92 18 1 0 0 11 77 229 412
Cooling Degree Days °C 0 1 6 27 96 209 296 293 161 39 4 0
Precipitation cm. 3.84 5.16 7.52 9.04 13.41 12.60 6.60 7.06 9.25 10.82 5.87 5.38
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