| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.94 | -0.05 |
| Feb | 0.93 | 0.94 | -0.01 |
| Mar | 1.81 | 1.83 | -0.02 |
| Apr | 3.22 | 3.10 | 0.12 |
| May | 4.38 | 4.29 | 0.09 |
| Jun | 5.30 | 5.16 | 0.14 |
| Jul | 4.61 | 4.67 | -0.06 |
| Aug | 4.60 | 4.49 | 0.11 |
| Sep | 3.65 | 3.65 | 0.00 |
| Oct | 2.53 | 2.54 | -0.01 |
| Nov | 1.58 | 1.56 | 0.02 |
| Dec | 1.18 | 1.23 | -0.05 |
34.68 | 34.40 | 0.28 |