| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.48 | 0.01 |
| Feb | 0.64 | 0.66 | -0.02 |
| Mar | 1.21 | 1.21 | 0.00 |
| Apr | 2.15 | 2.03 | 0.12 |
| May | 3.54 | 3.64 | -0.10 |
| Jun | 2.87 | 3.08 | -0.21 |
| Jul | 3.66 | 3.76 | -0.10 |
| Aug | 3.13 | 3.30 | -0.17 |
| Sep | 1.93 | 2.07 | -0.14 |
| Oct | 1.77 | 1.81 | -0.04 |
| Nov | 0.83 | 0.81 | 0.02 |
| Dec | 0.67 | 0.75 | -0.08 |
22.89 | 23.60 | -0.71 |