| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.68 | -0.14 |
| Feb | 2.72 | 2.95 | -0.23 |
| Mar | 4.00 | 4.14 | -0.14 |
| Apr | 3.96 | 4.09 | -0.13 |
| May | 4.07 | 4.20 | -0.13 |
| Jun | 4.58 | 4.93 | -0.35 |
| Jul | 4.53 | 4.61 | -0.08 |
| Aug | 4.36 | 4.55 | -0.19 |
| Sep | 4.44 | 4.42 | 0.02 |
| Oct | 4.54 | 4.70 | -0.16 |
| Nov | 3.51 | 3.69 | -0.18 |
| Dec | 4.36 | 4.53 | -0.17 |
48.61 | 50.49 | -1.88 |