| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.60 | -0.19 |
| Feb | 3.43 | 3.50 | -0.07 |
| Mar | 4.45 | 4.55 | -0.10 |
| Apr | 4.72 | 4.69 | 0.03 |
| May | 5.24 | 5.14 | 0.10 |
| Jun | 4.78 | 4.79 | -0.01 |
| Jul | 4.88 | 5.06 | -0.18 |
| Aug | 3.50 | 3.42 | 0.08 |
| Sep | 3.50 | 3.68 | -0.18 |
| Oct | 3.70 | 3.59 | 0.11 |
| Nov | 3.26 | 3.40 | -0.14 |
| Dec | 4.02 | 4.16 | -0.14 |
48.89 | 49.58 | -0.69 |