| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.70 | -0.16 |
| Feb | 2.72 | 2.98 | -0.26 |
| Mar | 4.00 | 4.16 | -0.16 |
| Apr | 3.96 | 4.11 | -0.15 |
| May | 4.07 | 4.23 | -0.16 |
| Jun | 4.58 | 5.00 | -0.42 |
| Jul | 4.53 | 4.53 | 0.00 |
| Aug | 4.36 | 4.57 | -0.21 |
| Sep | 4.44 | 4.52 | -0.08 |
| Oct | 4.54 | 4.76 | -0.22 |
| Nov | 3.51 | 3.73 | -0.22 |
| Dec | 4.36 | 4.60 | -0.24 |
48.61 | 50.89 | -2.28 |