| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.42 | 0.02 |
| Feb | 2.71 | 2.93 | -0.22 |
| Mar | 3.78 | 3.90 | -0.12 |
| Apr | 3.83 | 3.86 | -0.03 |
| May | 4.16 | 4.00 | 0.16 |
| Jun | 4.50 | 4.56 | -0.06 |
| Jul | 4.97 | 4.93 | 0.04 |
| Aug | 4.64 | 4.83 | -0.19 |
| Sep | 4.53 | 4.64 | -0.11 |
| Oct | 4.48 | 4.59 | -0.11 |
| Nov | 3.28 | 3.39 | -0.11 |
| Dec | 4.20 | 4.26 | -0.06 |
48.52 | 49.31 | -0.79 |