| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.74 | -0.03 |
| Feb | 2.93 | 3.01 | -0.08 |
| Mar | 4.13 | 4.30 | -0.17 |
| Apr | 4.04 | 4.11 | -0.07 |
| May | 4.18 | 4.23 | -0.05 |
| Jun | 4.83 | 4.93 | -0.10 |
| Jul | 4.87 | 4.73 | 0.14 |
| Aug | 4.56 | 4.60 | -0.04 |
| Sep | 4.61 | 4.53 | 0.08 |
| Oct | 4.61 | 4.67 | -0.06 |
| Nov | 3.58 | 3.70 | -0.12 |
| Dec | 4.57 | 4.62 | -0.05 |
50.62 | 51.17 | -0.55 |