| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.91 | -0.21 |
| Feb | 2.51 | 2.65 | -0.14 |
| Mar | 2.99 | 3.11 | -0.12 |
| Apr | 3.23 | 3.50 | -0.27 |
| May | 4.37 | 4.26 | 0.11 |
| Jun | 4.95 | 4.85 | 0.10 |
| Jul | 3.99 | 3.99 | 0.00 |
| Aug | 4.62 | 4.64 | -0.02 |
| Sep | 6.01 | 5.64 | 0.37 |
| Oct | 4.59 | 4.63 | -0.04 |
| Nov | 3.88 | 4.12 | -0.24 |
| Dec | 3.52 | 3.94 | -0.42 |
48.36 | 49.24 | -0.88 |