CLIMATE CHARTS

Saybrook, Illinois

Latitude: 40.4536 Longitude: -88.5364

Elevation: 799.9 feet (243.8 meters)

Saybrook, Illinois Temperature Chart Daily average maximum and minimum temperatures for Saybrook, Illinois 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 Saybrook, Illinois Precipitation Chart Precipitation chart for Saybrook, Illinois 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 SAYBROOK, IL Daylight chart for SAYBROOK, IL. Latitude 40.5. 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 Saybrook, Illinois

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 31.5 36.0 48.3 62.3 72.3 81.1 84.0 83.0 77.9 65.6 49.9 35.3
Minimum Temperature °F 15.0 19.1 28.3 38.8 50.2 59.7 62.5 60.2 51.6 41.0 31.0 19.3
Heating Degree Days °F 1294 1048 828 439 153 14 0 7 69 365 737 1168
Cooling Degree Days °F 0 0 0 5 37 175 256 211 61 2 0 0
Precipitation in. 2.01 1.76 2.61 3.60 4.36 3.91 4.16 3.90 2.89 3.21 3.35 2.30

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C -0.3 2.2 9.1 16.8 22.4 27.3 28.9 28.3 25.5 18.7 9.9 1.8
Minimum Temperature °C -9.4 -7.2 -2.1 3.8 10.1 15.4 16.9 15.7 10.9 5.0 -0.6 -7.1
Heating Degree Days °C 719 582 460 244 85 8 0 4 38 203 409 649
Cooling Degree Days °C 0 0 0 3 21 97 142 117 34 1 0 0
Precipitation cm. 5.11 4.47 6.63 9.14 11.07 9.93 10.57 9.91 7.34 8.15 8.51 5.84