CLIMATE CHARTS

Keokuk Lock Dam 19, Iowa

Latitude: 40.3967 Longitude: -91.3750

Elevation: 526.9 feet (160.6 meters)

Keokuk Lock Dam 19, Iowa Temperature Chart Daily average maximum and minimum temperatures for Keokuk Lock Dam 19, Iowa 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 Keokuk Lock Dam 19, Iowa Precipitation Chart Precipitation chart for Keokuk Lock Dam 19, Iowa 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 KEOKUK LOCK DAM 19, IA Daylight chart for KEOKUK LOCK DAM 19, IA. Latitude 40.4. 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 Keokuk Lock Dam 19, Iowa

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 34.0 38.9 50.4 63.3 73.2 82.6 86.6 85.1 77.7 65.8 51.2 37.2
Minimum Temperature °F 17.0 20.4 30.4 42.0 52.4 62.3 66.8 64.9 55.7 44.2 33.0 20.9
Heating Degree Days °F 1224 990 764 385 136 16 0 3 76 327 688 1114
Cooling Degree Days °F 0 0 1 15 68 239 363 313 127 17 1 0
Precipitation in. 1.38 1.63 2.58 3.76 5.17 4.83 4.27 3.63 3.61 3.33 2.89 2.12

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 1.1 3.8 10.2 17.4 22.9 28.1 30.3 29.5 25.4 18.8 10.7 2.9
Minimum Temperature °C -8.3 -6.4 -0.9 5.6 11.3 16.8 19.3 18.3 13.2 6.8 0.6 -6.2
Heating Degree Days °C 680 550 424 214 76 9 0 2 42 182 382 619
Cooling Degree Days °C 0 0 1 8 38 133 202 174 71 9 1 0
Precipitation cm. 3.51 4.14 6.55 9.55 13.13 12.27 10.85 9.22 9.17 8.46 7.34 5.38
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