| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.76 | -0.23 |
| Feb | 2.65 | 2.72 | -0.07 |
| Mar | 3.21 | 3.23 | -0.02 |
| Apr | 3.89 | 3.93 | -0.04 |
| May | 4.08 | 4.16 | -0.08 |
| Jun | 4.58 | 4.66 | -0.08 |
| Jul | 4.60 | 4.93 | -0.33 |
| Aug | 3.75 | 3.91 | -0.16 |
| Sep | 4.14 | 4.22 | -0.08 |
| Oct | 4.44 | 4.24 | 0.20 |
| Nov | 3.70 | 3.72 | -0.02 |
| Dec | 3.88 | 4.27 | -0.39 |
46.45 | 47.75 | -1.30 |