| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.65 | -0.06 |
| Feb | 3.05 | 2.97 | 0.08 |
| Mar | 4.13 | 4.16 | -0.03 |
| Apr | 3.64 | 3.67 | -0.03 |
| May | 3.62 | 3.62 | 0.00 |
| Jun | 4.20 | 4.21 | -0.01 |
| Jul | 4.64 | 4.53 | 0.11 |
| Aug | 4.41 | 4.38 | 0.03 |
| Sep | 5.00 | 5.06 | -0.06 |
| Oct | 3.36 | 3.44 | -0.08 |
| Nov | 3.28 | 3.34 | -0.06 |
| Dec | 3.59 | 3.52 | 0.07 |
46.51 | 46.55 | -0.04 |