| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.07 | 1.09 | -0.02 |
| Feb | 1.20 | 1.16 | 0.04 |
| Mar | 1.96 | 1.86 | 0.10 |
| Apr | 3.77 | 3.59 | 0.18 |
| May | 4.76 | 4.65 | 0.11 |
| Jun | 5.86 | 5.67 | 0.19 |
| Jul | 4.72 | 5.02 | -0.30 |
| Aug | 4.15 | 4.19 | -0.04 |
| Sep | 3.70 | 3.58 | 0.12 |
| Oct | 2.76 | 2.66 | 0.10 |
| Nov | 1.96 | 1.83 | 0.13 |
| Dec | 1.53 | 1.45 | 0.08 |
37.44 | 36.75 | 0.69 |