| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.58 | 0.01 |
| Feb | 0.71 | 0.70 | 0.01 |
| Mar | 1.46 | 1.46 | 0.00 |
| Apr | 2.64 | 2.76 | -0.12 |
| May | 4.61 | 4.59 | 0.02 |
| Jun | 3.89 | 4.06 | -0.17 |
| Jul | 3.49 | 3.39 | 0.10 |
| Aug | 3.28 | 3.28 | 0.00 |
| Sep | 2.21 | 2.10 | 0.11 |
| Oct | 2.14 | 2.11 | 0.03 |
| Nov | 1.22 | 1.17 | 0.05 |
| Dec | 0.87 | 0.86 | 0.01 |
27.11 | 27.06 | 0.05 |