| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.85 | -0.02 |
| Feb | 4.08 | 4.00 | 0.08 |
| Mar | 4.89 | 4.81 | 0.08 |
| Apr | 4.97 | 4.78 | 0.19 |
| May | 5.43 | 5.61 | -0.18 |
| Jun | 4.90 | 4.67 | 0.23 |
| Jul | 4.76 | 4.67 | 0.09 |
| Aug | 3.58 | 3.49 | 0.09 |
| Sep | 3.76 | 3.67 | 0.09 |
| Oct | 3.95 | 3.79 | 0.16 |
| Nov | 3.68 | 3.62 | 0.06 |
| Dec | 4.63 | 4.59 | 0.04 |
52.46 | 51.55 | 0.91 |