| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.88 | 0.90 | -0.02 |
| Feb | 0.88 | 0.88 | 0.00 |
| Mar | 1.70 | 1.68 | 0.02 |
| Apr | 2.95 | 2.94 | 0.01 |
| May | 4.18 | 4.19 | -0.01 |
| Jun | 5.04 | 4.98 | 0.06 |
| Jul | 4.10 | 4.28 | -0.18 |
| Aug | 4.46 | 4.39 | 0.07 |
| Sep | 3.41 | 3.29 | 0.12 |
| Oct | 2.62 | 2.58 | 0.04 |
| Nov | 1.61 | 1.60 | 0.01 |
| Dec | 1.18 | 1.22 | -0.04 |
33.01 | 32.93 | 0.08 |