| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.64 | 2.79 | -0.15 |
| Feb | 2.13 | 2.30 | -0.17 |
| Mar | 2.75 | 2.85 | -0.10 |
| Apr | 3.62 | 3.80 | -0.18 |
| May | 3.76 | 3.90 | -0.14 |
| Jun | 4.08 | 4.06 | 0.02 |
| Jul | 3.72 | 3.86 | -0.14 |
| Aug | 3.59 | 3.66 | -0.07 |
| Sep | 3.56 | 3.59 | -0.03 |
| Oct | 3.29 | 3.34 | -0.05 |
| Nov | 2.88 | 2.95 | -0.07 |
| Dec | 2.64 | 2.76 | -0.12 |
38.66 | 39.86 | -1.20 |