| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.56 | -0.18 |
| Feb | 2.91 | 2.99 | -0.08 |
| Mar | 3.66 | 3.74 | -0.08 |
| Apr | 3.84 | 3.91 | -0.07 |
| May | 4.20 | 4.50 | -0.30 |
| Jun | 4.58 | 4.78 | -0.20 |
| Jul | 4.35 | 4.75 | -0.40 |
| Aug | 4.10 | 4.24 | -0.14 |
| Sep | 3.76 | 3.92 | -0.16 |
| Oct | 3.26 | 3.38 | -0.12 |
| Nov | 3.40 | 3.46 | -0.06 |
| Dec | 3.48 | 3.60 | -0.12 |
44.92 | 46.83 | -1.91 |