| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.44 | 0.04 |
| Feb | 2.95 | 2.82 | 0.13 |
| Mar | 3.30 | 3.39 | -0.09 |
| Apr | 2.89 | 3.07 | -0.18 |
| May | 4.82 | 4.52 | 0.30 |
| Jun | 3.73 | 3.99 | -0.26 |
| Jul | 2.11 | 2.05 | 0.06 |
| Aug | 2.90 | 3.08 | -0.18 |
| Sep | 3.56 | 3.64 | -0.08 |
| Oct | 4.60 | 4.55 | 0.05 |
| Nov | 3.76 | 3.69 | 0.07 |
| Dec | 3.81 | 3.74 | 0.07 |
41.91 | 41.98 | -0.07 |