| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.39 | 0.00 |
| Feb | 0.55 | 0.58 | -0.03 |
| Mar | 1.05 | 1.04 | 0.01 |
| Apr | 2.09 | 1.99 | 0.10 |
| May | 3.10 | 2.92 | 0.18 |
| Jun | 3.16 | 2.88 | 0.28 |
| Jul | 3.44 | 3.14 | 0.30 |
| Aug | 3.03 | 2.78 | 0.25 |
| Sep | 1.60 | 1.60 | 0.00 |
| Oct | 1.63 | 1.53 | 0.10 |
| Nov | 0.77 | 0.71 | 0.06 |
| Dec | 0.57 | 0.59 | -0.02 |
21.38 | 20.15 | 1.23 |