| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.77 | -0.23 |
| Feb | 3.31 | 3.44 | -0.13 |
| Mar | 3.75 | 3.94 | -0.19 |
| Apr | 3.15 | 3.27 | -0.12 |
| May | 3.94 | 4.01 | -0.07 |
| Jun | 4.75 | 4.63 | 0.12 |
| Jul | 6.36 | 6.24 | 0.12 |
| Aug | 6.91 | 7.09 | -0.18 |
| Sep | 7.62 | 8.36 | -0.74 |
| Oct | 4.72 | 4.81 | -0.09 |
| Nov | 3.47 | 3.60 | -0.13 |
| Dec | 3.64 | 3.70 | -0.06 |
55.16 | 56.86 | -1.70 |