| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.56 | -0.09 |
| Feb | 3.21 | 3.30 | -0.09 |
| Mar | 4.18 | 4.30 | -0.12 |
| Apr | 4.11 | 4.16 | -0.05 |
| May | 3.69 | 3.56 | 0.13 |
| Jun | 4.18 | 4.16 | 0.02 |
| Jul | 3.62 | 3.73 | -0.11 |
| Aug | 3.77 | 3.91 | -0.14 |
| Sep | 3.94 | 3.85 | 0.09 |
| Oct | 4.78 | 4.80 | -0.02 |
| Nov | 3.75 | 3.74 | 0.01 |
| Dec | 4.36 | 4.59 | -0.23 |
47.06 | 47.66 | -0.60 |