| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.64 | 0.01 |
| Feb | 0.81 | 0.84 | -0.03 |
| Mar | 1.48 | 1.45 | 0.03 |
| Apr | 2.76 | 2.82 | -0.06 |
| May | 3.69 | 3.62 | 0.07 |
| Jun | 4.58 | 4.20 | 0.38 |
| Jul | 3.61 | 3.58 | 0.03 |
| Aug | 3.53 | 3.35 | 0.18 |
| Sep | 3.14 | 3.06 | 0.08 |
| Oct | 2.25 | 2.10 | 0.15 |
| Nov | 1.17 | 1.09 | 0.08 |
| Dec | 0.86 | 0.93 | -0.07 |
28.53 | 27.68 | 0.85 |