| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.71 | 0.04 |
| Feb | 2.87 | 2.91 | -0.04 |
| Mar | 3.97 | 4.07 | -0.10 |
| Apr | 3.73 | 3.58 | 0.15 |
| May | 4.36 | 4.48 | -0.12 |
| Jun | 4.48 | 4.54 | -0.06 |
| Jul | 4.12 | 4.01 | 0.11 |
| Aug | 4.13 | 4.14 | -0.01 |
| Sep | 4.72 | 5.25 | -0.53 |
| Oct | 3.57 | 3.50 | 0.07 |
| Nov | 3.29 | 3.07 | 0.22 |
| Dec | 3.62 | 3.53 | 0.09 |
46.61 | 46.79 | -0.18 |