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Historical Duluth Weather Data
| Record High Temp (°F) |
Normal High Temp (°F) |
Normal Low Temp (°F) |
Record Low Temp (°F) |
Normal Monthly Precipitation (in.) |
Normal Monthly Snowfall (in.) |
|
|---|---|---|---|---|---|---|
| January | 52 | 17.9 | -1.2 | -39 | 1.12 | 18.3 |
| February | 55 | 24.4 | 5.1 | -39 | 0.83 | 12.1 |
| March | 78 | 34.2 | 16.5 | -29 | 1.69 | 13.8 |
| April | 88 | 49 | 28.9 | -5 | 2.09 | 6.7 |
| May | 90 | 63.4 | 40.2 | 17 | 2.95 | 0.7 |
| June | 94 | 71.2 | 48.5 | 27 | 4.25 | T |
| July | 97 | 76.3 | 54.6 | 35 | 4.2 | T |
| August | 97 | 73.9 | 53.5 | 32 | 4.22 | T |
| September | 95 | 64.5 | 44.8 | 22 | 4.13 | 0.1 |
| October | 86 | 52.5 | 34.5 | 8 | 2.46 | 1.6 |
| November | 71 | 35.2 | 20.7 | -23 | 2.12 | 12.8 |
| December | 55 | 22.3 | 5.6 | -34 | 0.94 | 15.4 |
