| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.72 | -0.01 |
| Feb | 0.90 | 0.91 | -0.01 |
| Mar | 1.65 | 1.61 | 0.04 |
| Apr | 2.70 | 2.76 | -0.06 |
| May | 4.94 | 5.05 | -0.11 |
| Jun | 4.57 | 4.51 | 0.06 |
| Jul | 3.57 | 3.51 | 0.06 |
| Aug | 3.60 | 3.69 | -0.09 |
| Sep | 2.85 | 2.67 | 0.18 |
| Oct | 2.29 | 2.21 | 0.08 |
| Nov | 1.27 | 1.42 | -0.15 |
| Dec | 1.17 | 1.02 | 0.15 |
30.22 | 30.08 | 0.14 |