| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.45 | 0.29 |
| Feb | 3.10 | 2.97 | 0.13 |
| Mar | 3.88 | 3.62 | 0.26 |
| Apr | 3.88 | 3.72 | 0.16 |
| May | 3.85 | 3.64 | 0.21 |
| Jun | 4.09 | 3.77 | 0.32 |
| Jul | 4.58 | 4.02 | 0.56 |
| Aug | 4.16 | 3.83 | 0.33 |
| Sep | 3.93 | 3.83 | 0.10 |
| Oct | 3.13 | 2.80 | 0.33 |
| Nov | 3.31 | 3.06 | 0.25 |
| Dec | 3.67 | 3.48 | 0.19 |
45.32 | 42.19 | 3.13 |