| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.04 | 0.02 |
| Feb | 2.64 | 2.60 | 0.04 |
| Mar | 3.49 | 3.32 | 0.17 |
| Apr | 3.64 | 3.41 | 0.23 |
| May | 4.22 | 4.03 | 0.19 |
| Jun | 3.88 | 3.72 | 0.16 |
| Jul | 4.11 | 3.76 | 0.35 |
| Aug | 3.60 | 3.05 | 0.55 |
| Sep | 3.53 | 3.15 | 0.38 |
| Oct | 2.83 | 2.68 | 0.15 |
| Nov | 2.78 | 2.64 | 0.14 |
| Dec | 3.12 | 3.02 | 0.10 |
40.90 | 38.42 | 2.48 |