| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.36 | 0.12 |
| Feb | 2.89 | 2.86 | 0.03 |
| Mar | 3.57 | 3.46 | 0.11 |
| Apr | 4.18 | 4.02 | 0.16 |
| May | 4.38 | 4.74 | -0.36 |
| Jun | 4.79 | 5.13 | -0.34 |
| Jul | 4.54 | 4.87 | -0.33 |
| Aug | 4.57 | 4.45 | 0.12 |
| Sep | 4.61 | 4.76 | -0.15 |
| Oct | 4.71 | 4.90 | -0.19 |
| Nov | 3.62 | 3.47 | 0.15 |
| Dec | 3.75 | 3.66 | 0.09 |
49.09 | 49.68 | -0.59 |