Radar Satellite Currents Severe Forecasts Climate Tropical Rivers
Temperature Change Precipitation Yesterday Records Normals Drought Short-Term Long-Term
Climatological Normals

September Normals for Yellowstone Lake, WY

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 41 73 57 0.05 9 1 2 40 72 56 0.05 9 1 3 40 72 56 0.05 10 1 4 40 72 56 0.05 10 1 5 39 71 55 0.05 10 1 6 39 71 55 0.05 11 0 7 38 70 54 0.05 11 0 8 38 70 54 0.05 12 0 9 38 69 54 0.05 12 0 10 37 69 53 0.04 12 0 11 37 69 53 0.04 12 0 12 37 68 52 0.04 13 0 13 36 68 52 0.04 13 0 14 36 67 52 0.04 13 0 15 36 67 51 0.04 14 0 16 35 66 51 0.04 14 0 17 35 66 51 0.04 14 0 18 35 66 50 0.04 15 0 19 35 65 50 0.04 15 0 20 34 65 50 0.04 15 0 21 34 65 49 0.04 16 0 22 34 64 49 0.04 16 0 23 33 64 48 0.04 16 0 24 33 63 48 0.04 17 0 25 33 63 48 0.04 17 0 26 33 63 48 0.04 17 0 27 32 62 47 0.04 18 0 28 32 62 47 0.04 18 0 29 32 61 47 0.04 18 0 30 32 61 46 0.04 19 0 Month 36 67 51 1.29 416 5 Data Controls Monthly: January February March April May June July August September October November December   | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather