| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.65 | -0.30 |
| Feb | 2.57 | 2.68 | -0.11 |
| Mar | 3.33 | 3.30 | 0.03 |
| Apr | 3.77 | 3.90 | -0.13 |
| May | 3.86 | 3.97 | -0.11 |
| Jun | 4.59 | 4.78 | -0.19 |
| Jul | 4.20 | 4.58 | -0.38 |
| Aug | 3.98 | 3.87 | 0.11 |
| Sep | 4.19 | 4.36 | -0.17 |
| Oct | 4.28 | 4.12 | 0.16 |
| Nov | 3.50 | 3.50 | 0.00 |
| Dec | 3.64 | 3.76 | -0.12 |
45.26 | 46.47 | -1.21 |