| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.71 | 0.02 |
| Feb | 0.81 | 0.79 | 0.02 |
| Mar | 1.69 | 1.63 | 0.06 |
| Apr | 3.02 | 2.94 | 0.08 |
| May | 4.22 | 4.18 | 0.04 |
| Jun | 4.79 | 4.88 | -0.09 |
| Jul | 3.77 | 3.76 | 0.01 |
| Aug | 4.00 | 3.70 | 0.30 |
| Sep | 3.19 | 3.14 | 0.05 |
| Oct | 2.40 | 2.39 | 0.01 |
| Nov | 1.51 | 1.30 | 0.21 |
| Dec | 0.87 | 1.00 | -0.13 |
31.00 | 30.42 | 0.58 |