| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.61 | 0.03 |
| Feb | 0.82 | 0.86 | -0.04 |
| Mar | 1.60 | 1.60 | 0.00 |
| Apr | 3.11 | 3.21 | -0.10 |
| May | 4.15 | 4.12 | 0.03 |
| Jun | 4.58 | 4.76 | -0.18 |
| Jul | 3.29 | 3.41 | -0.12 |
| Aug | 3.93 | 3.80 | 0.13 |
| Sep | 2.97 | 2.94 | 0.03 |
| Oct | 2.26 | 2.27 | -0.01 |
| Nov | 1.32 | 1.34 | -0.02 |
| Dec | 1.01 | 0.97 | 0.04 |
29.68 | 29.89 | -0.21 |