| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.62 | 4.50 | 0.12 |
| Feb | 3.78 | 3.84 | -0.06 |
| Mar | 4.62 | 4.46 | 0.16 |
| Apr | 4.80 | 5.10 | -0.30 |
| May | 4.86 | 5.09 | -0.23 |
| Jun | 4.94 | 5.10 | -0.16 |
| Jul | 5.13 | 5.06 | 0.07 |
| Aug | 5.63 | 5.20 | 0.43 |
| Sep | 5.20 | 4.73 | 0.47 |
| Oct | 4.36 | 4.05 | 0.31 |
| Nov | 4.23 | 4.11 | 0.12 |
| Dec | 4.66 | 4.84 | -0.18 |
56.83 | 56.08 | 0.75 |