| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.69 | -0.07 |
| Feb | 0.71 | 0.78 | -0.07 |
| Mar | 1.50 | 1.48 | 0.02 |
| Apr | 2.61 | 2.61 | 0.00 |
| May | 3.61 | 3.64 | -0.03 |
| Jun | 4.54 | 4.56 | -0.02 |
| Jul | 3.64 | 3.58 | 0.06 |
| Aug | 3.83 | 3.70 | 0.13 |
| Sep | 3.11 | 3.01 | 0.10 |
| Oct | 2.25 | 2.19 | 0.06 |
| Nov | 1.28 | 1.26 | 0.02 |
| Dec | 0.83 | 0.94 | -0.11 |
28.53 | 28.44 | 0.09 |