| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.72 | 4.76 | -0.04 |
| Feb | 4.75 | 4.79 | -0.04 |
| Mar | 4.97 | 4.91 | 0.06 |
| Apr | 4.01 | 4.05 | -0.04 |
| May | 3.87 | 3.95 | -0.08 |
| Jun | 4.59 | 4.53 | 0.06 |
| Jul | 4.63 | 4.76 | -0.13 |
| Aug | 4.50 | 4.61 | -0.11 |
| Sep | 4.13 | 4.28 | -0.15 |
| Oct | 3.60 | 3.64 | -0.04 |
| Nov | 4.21 | 4.30 | -0.09 |
| Dec | 4.62 | 4.83 | -0.21 |
52.60 | 53.41 | -0.81 |