| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.34 | 0.01 |
| Feb | 0.54 | 0.50 | 0.04 |
| Mar | 1.02 | 1.00 | 0.02 |
| Apr | 1.78 | 1.79 | -0.01 |
| May | 2.89 | 2.86 | 0.03 |
| Jun | 2.76 | 2.64 | 0.12 |
| Jul | 3.45 | 3.61 | -0.16 |
| Aug | 2.85 | 2.92 | -0.07 |
| Sep | 1.58 | 1.59 | -0.01 |
| Oct | 1.51 | 1.51 | 0.00 |
| Nov | 0.63 | 0.65 | -0.02 |
| Dec | 0.45 | 0.53 | -0.08 |
19.81 | 19.94 | -0.13 |