| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.52 | 0.00 |
| Feb | 3.43 | 3.58 | -0.15 |
| Mar | 4.30 | 4.53 | -0.23 |
| Apr | 4.38 | 4.57 | -0.19 |
| May | 3.75 | 3.91 | -0.16 |
| Jun | 4.20 | 4.27 | -0.07 |
| Jul | 3.72 | 3.70 | 0.02 |
| Aug | 3.53 | 3.58 | -0.05 |
| Sep | 3.88 | 3.88 | 0.00 |
| Oct | 4.92 | 5.14 | -0.22 |
| Nov | 4.21 | 4.15 | 0.06 |
| Dec | 4.56 | 4.70 | -0.14 |
48.40 | 49.53 | -1.13 |