| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.50 | 4.58 | -0.08 |
| Feb | 3.99 | 4.20 | -0.21 |
| Mar | 4.75 | 4.78 | -0.03 |
| Apr | 4.74 | 4.80 | -0.06 |
| May | 5.49 | 5.49 | 0.00 |
| Jun | 5.19 | 5.39 | -0.20 |
| Jul | 5.18 | 5.68 | -0.50 |
| Aug | 4.52 | 4.66 | -0.14 |
| Sep | 4.04 | 4.13 | -0.09 |
| Oct | 3.87 | 3.75 | 0.12 |
| Nov | 3.59 | 3.74 | -0.15 |
| Dec | 4.61 | 4.54 | 0.07 |
54.47 | 55.74 | -1.27 |