| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.70 | -0.08 |
| Feb | 3.93 | 4.04 | -0.11 |
| Mar | 4.61 | 4.65 | -0.04 |
| Apr | 4.84 | 5.04 | -0.20 |
| May | 5.16 | 5.26 | -0.10 |
| Jun | 4.57 | 4.70 | -0.13 |
| Jul | 4.25 | 4.26 | -0.01 |
| Aug | 3.30 | 3.44 | -0.14 |
| Sep | 3.52 | 3.41 | 0.11 |
| Oct | 3.85 | 3.97 | -0.12 |
| Nov | 3.64 | 3.92 | -0.28 |
| Dec | 4.47 | 4.51 | -0.04 |
49.76 | 50.90 | -1.14 |