| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.70 | -0.07 |
| Feb | 0.71 | 0.78 | -0.07 |
| Mar | 1.53 | 1.45 | 0.08 |
| Apr | 2.58 | 2.53 | 0.05 |
| May | 3.56 | 3.51 | 0.05 |
| Jun | 4.50 | 4.59 | -0.09 |
| Jul | 3.65 | 3.49 | 0.16 |
| Aug | 3.83 | 3.64 | 0.19 |
| Sep | 3.06 | 2.89 | 0.17 |
| Oct | 2.26 | 2.13 | 0.13 |
| Nov | 1.26 | 1.23 | 0.03 |
| Dec | 0.84 | 0.90 | -0.06 |
28.41 | 27.84 | 0.57 |