| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.71 | -0.06 |
| Feb | 3.14 | 3.19 | -0.05 |
| Mar | 3.90 | 4.01 | -0.11 |
| Apr | 3.58 | 3.62 | -0.04 |
| May | 3.51 | 3.45 | 0.06 |
| Jun | 4.01 | 4.17 | -0.16 |
| Jul | 3.65 | 3.80 | -0.15 |
| Aug | 4.12 | 3.97 | 0.15 |
| Sep | 3.60 | 3.73 | -0.13 |
| Oct | 3.08 | 3.10 | -0.02 |
| Nov | 3.21 | 3.31 | -0.10 |
| Dec | 3.60 | 3.72 | -0.12 |
43.05 | 43.78 | -0.73 |