| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.07 | 4.18 | -0.11 |
| Feb | 3.20 | 3.18 | 0.02 |
| Mar | 3.58 | 3.68 | -0.10 |
| Apr | 3.74 | 3.54 | 0.20 |
| May | 4.86 | 4.86 | 0.00 |
| Jun | 4.92 | 4.56 | 0.36 |
| Jul | 3.36 | 3.23 | 0.13 |
| Aug | 3.96 | 4.06 | -0.10 |
| Sep | 3.94 | 4.14 | -0.20 |
| Oct | 5.14 | 5.12 | 0.02 |
| Nov | 4.54 | 4.57 | -0.03 |
| Dec | 4.13 | 4.19 | -0.06 |
49.44 | 49.31 | 0.13 |