| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.63 | 0.01 |
| Feb | 0.69 | 0.74 | -0.05 |
| Mar | 1.55 | 1.52 | 0.03 |
| Apr | 2.86 | 2.81 | 0.05 |
| May | 4.72 | 4.69 | 0.03 |
| Jun | 4.40 | 4.51 | -0.11 |
| Jul | 3.30 | 3.12 | 0.18 |
| Aug | 3.54 | 3.55 | -0.01 |
| Sep | 2.50 | 2.52 | -0.02 |
| Oct | 2.21 | 2.20 | 0.01 |
| Nov | 1.23 | 1.26 | -0.03 |
| Dec | 0.94 | 0.97 | -0.03 |
28.58 | 28.52 | 0.06 |