| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.41 | 0.07 |
| Feb | 2.91 | 2.80 | 0.11 |
| Mar | 3.35 | 3.41 | -0.06 |
| Apr | 2.83 | 3.09 | -0.26 |
| May | 4.87 | 4.62 | 0.25 |
| Jun | 3.69 | 3.90 | -0.21 |
| Jul | 2.04 | 2.05 | -0.01 |
| Aug | 2.82 | 2.98 | -0.16 |
| Sep | 3.49 | 3.52 | -0.03 |
| Oct | 4.56 | 4.50 | 0.06 |
| Nov | 3.66 | 3.64 | 0.02 |
| Dec | 3.77 | 3.70 | 0.07 |
41.47 | 41.62 | -0.15 |