| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.62 | -0.18 |
| Feb | 3.09 | 3.23 | -0.14 |
| Mar | 4.44 | 4.65 | -0.21 |
| Apr | 3.38 | 3.48 | -0.10 |
| May | 3.26 | 3.47 | -0.21 |
| Jun | 3.73 | 3.64 | 0.09 |
| Jul | 4.45 | 4.37 | 0.08 |
| Aug | 4.52 | 4.53 | -0.01 |
| Sep | 3.68 | 3.76 | -0.08 |
| Oct | 3.88 | 4.31 | -0.43 |
| Nov | 3.25 | 3.41 | -0.16 |
| Dec | 4.42 | 4.62 | -0.20 |
45.54 | 47.09 | -1.55 |