| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.88 | 5.00 | -0.12 |
| Feb | 5.06 | 5.04 | 0.02 |
| Mar | 5.21 | 5.20 | 0.01 |
| Apr | 4.77 | 5.10 | -0.33 |
| May | 3.95 | 4.50 | -0.55 |
| Jun | 4.63 | 4.78 | -0.15 |
| Jul | 4.66 | 5.44 | -0.78 |
| Aug | 3.93 | 3.94 | -0.01 |
| Sep | 3.88 | 4.06 | -0.18 |
| Oct | 3.06 | 3.16 | -0.10 |
| Nov | 4.50 | 4.27 | 0.23 |
| Dec | 5.43 | 5.62 | -0.19 |
53.96 | 56.11 | -2.15 |