| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.58 | -0.24 |
| Feb | 2.75 | 2.89 | -0.14 |
| Mar | 4.13 | 4.41 | -0.28 |
| Apr | 3.64 | 3.65 | -0.01 |
| May | 3.50 | 3.68 | -0.18 |
| Jun | 4.14 | 4.33 | -0.19 |
| Jul | 4.71 | 4.55 | 0.16 |
| Aug | 4.42 | 4.75 | -0.33 |
| Sep | 4.29 | 4.20 | 0.09 |
| Oct | 3.79 | 3.95 | -0.16 |
| Nov | 3.14 | 3.21 | -0.07 |
| Dec | 4.13 | 4.37 | -0.24 |
45.98 | 47.57 | -1.59 |