| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.57 | 0.02 |
| Feb | 0.86 | 0.77 | 0.09 |
| Mar | 1.51 | 1.50 | 0.01 |
| Apr | 3.14 | 3.06 | 0.08 |
| May | 4.23 | 4.11 | 0.12 |
| Jun | 4.33 | 4.44 | -0.11 |
| Jul | 3.22 | 3.21 | 0.01 |
| Aug | 3.58 | 3.58 | 0.00 |
| Sep | 2.90 | 2.83 | 0.07 |
| Oct | 2.42 | 2.44 | -0.02 |
| Nov | 1.30 | 1.25 | 0.05 |
| Dec | 0.85 | 0.82 | 0.03 |
28.93 | 28.58 | 0.35 |