| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.58 | -0.04 |
| Feb | 2.77 | 2.95 | -0.18 |
| Mar | 4.02 | 4.11 | -0.09 |
| Apr | 3.89 | 3.90 | -0.01 |
| May | 3.94 | 3.98 | -0.04 |
| Jun | 4.67 | 4.79 | -0.12 |
| Jul | 4.57 | 4.40 | 0.17 |
| Aug | 4.53 | 4.81 | -0.28 |
| Sep | 4.50 | 4.56 | -0.06 |
| Oct | 4.61 | 4.76 | -0.15 |
| Nov | 3.47 | 3.50 | -0.03 |
| Dec | 4.23 | 4.41 | -0.18 |
48.74 | 49.75 | -1.01 |