| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.03 | 0.01 |
| Feb | 3.52 | 3.47 | 0.05 |
| Mar | 4.68 | 4.73 | -0.05 |
| Apr | 4.40 | 4.53 | -0.13 |
| May | 3.64 | 3.52 | 0.12 |
| Jun | 4.18 | 4.30 | -0.12 |
| Jul | 3.58 | 3.57 | 0.01 |
| Aug | 3.90 | 3.90 | 0.00 |
| Sep | 4.03 | 4.05 | -0.02 |
| Oct | 4.95 | 4.94 | 0.01 |
| Nov | 4.10 | 4.07 | 0.03 |
| Dec | 4.89 | 4.99 | -0.10 |
49.91 | 50.10 | -0.19 |