| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.81 | 1.80 | 0.01 |
| Feb | 1.86 | 1.91 | -0.05 |
| Mar | 2.58 | 2.54 | 0.04 |
| Apr | 4.08 | 3.95 | 0.13 |
| May | 5.02 | 4.90 | 0.12 |
| Jun | 4.74 | 4.55 | 0.19 |
| Jul | 3.88 | 3.90 | -0.02 |
| Aug | 3.84 | 3.70 | 0.14 |
| Sep | 3.44 | 3.39 | 0.05 |
| Oct | 3.12 | 3.04 | 0.08 |
| Nov | 2.59 | 2.57 | 0.02 |
| Dec | 1.94 | 1.89 | 0.05 |
38.90 | 38.14 | 0.76 |