| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.14 | 4.13 | 0.01 |
| Feb | 4.65 | 4.58 | 0.07 |
| Mar | 4.86 | 4.84 | 0.02 |
| Apr | 4.88 | 4.91 | -0.03 |
| May | 5.02 | 5.23 | -0.21 |
| Jun | 4.28 | 4.31 | -0.03 |
| Jul | 4.41 | 4.52 | -0.11 |
| Aug | 3.74 | 3.67 | 0.07 |
| Sep | 3.81 | 3.86 | -0.05 |
| Oct | 3.53 | 3.53 | 0.00 |
| Nov | 3.67 | 3.74 | -0.07 |
| Dec | 4.80 | 4.85 | -0.05 |
51.79 | 52.17 | -0.38 |