| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.43 | 4.35 | 0.08 |
| Feb | 4.74 | 4.67 | 0.07 |
| Mar | 5.20 | 4.97 | 0.23 |
| Apr | 4.87 | 4.75 | 0.12 |
| May | 4.84 | 4.87 | -0.03 |
| Jun | 4.45 | 4.50 | -0.05 |
| Jul | 4.53 | 4.49 | 0.04 |
| Aug | 3.74 | 3.46 | 0.28 |
| Sep | 3.90 | 3.74 | 0.16 |
| Oct | 3.57 | 3.42 | 0.15 |
| Nov | 3.70 | 3.83 | -0.13 |
| Dec | 5.08 | 5.21 | -0.13 |
53.05 | 52.26 | 0.79 |