| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.52 | 0.01 |
| Feb | 0.70 | 0.65 | 0.05 |
| Mar | 1.06 | 1.02 | 0.04 |
| Apr | 2.47 | 2.36 | 0.11 |
| May | 3.16 | 3.20 | -0.04 |
| Jun | 3.73 | 3.75 | -0.02 |
| Jul | 2.94 | 3.05 | -0.11 |
| Aug | 2.65 | 2.56 | 0.09 |
| Sep | 2.34 | 2.28 | 0.06 |
| Oct | 2.01 | 2.06 | -0.05 |
| Nov | 0.74 | 0.76 | -0.02 |
| Dec | 0.63 | 0.60 | 0.03 |
22.96 | 22.81 | 0.15 |