| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.53 | -0.11 |
| Feb | 2.71 | 2.83 | -0.12 |
| Mar | 3.71 | 3.67 | 0.04 |
| Apr | 4.89 | 5.08 | -0.19 |
| May | 5.03 | 5.23 | -0.20 |
| Jun | 4.85 | 5.28 | -0.43 |
| Jul | 4.39 | 4.56 | -0.17 |
| Aug | 3.41 | 3.38 | 0.03 |
| Sep | 3.36 | 3.62 | -0.26 |
| Oct | 3.54 | 3.60 | -0.06 |
| Nov | 3.80 | 3.87 | -0.07 |
| Dec | 3.39 | 3.49 | -0.10 |
46.50 | 48.14 | -1.64 |