| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.47 | 4.40 | 0.07 |
| Feb | 4.81 | 4.68 | 0.13 |
| Mar | 5.12 | 5.00 | 0.12 |
| Apr | 4.85 | 4.76 | 0.09 |
| May | 4.85 | 4.91 | -0.06 |
| Jun | 4.62 | 4.67 | -0.05 |
| Jul | 4.60 | 4.61 | -0.01 |
| Aug | 3.72 | 3.51 | 0.21 |
| Sep | 3.86 | 3.77 | 0.09 |
| Oct | 3.56 | 3.43 | 0.13 |
| Nov | 3.66 | 3.80 | -0.14 |
| Dec | 5.15 | 5.27 | -0.12 |
53.27 | 52.81 | 0.46 |