Interactive (Beta) Radar Satellite Currents Severe Forecasts Climate Tropical Rivers Live Search Map
Temperature Change Precipitation Yesterday Records Normals Drought Short-Term Long-Term
Climatological Normals

Yearly Normals for Siam, IA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 10 31 20 0.93 1382 0 Feb 16 37 27 1.03 1074 0 Mar 26 49 38 2.45 851 0 Apr 37 62 50 3.3 466 3 May 49 73 61 4.8 187 56 Jun 59 83 71 4.77 18 184 Jul 63 86 75 5.15 2 301 Aug 60 84 72 4.27 25 248 Sep 51 77 64 3.89 113 73 Oct 38 65 52 2.65 420 2 Nov 26 48 37 2.36 842 0 Dec 15 35 25 1.16 1246 0 Year 38 61 49 36.76 6626 867 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather