| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.60 | 0.01 |
| Feb | 0.58 | 0.58 | 0.00 |
| Mar | 1.17 | 1.15 | 0.02 |
| Apr | 2.19 | 2.19 | 0.00 |
| May | 3.21 | 3.11 | 0.10 |
| Jun | 4.32 | 4.25 | 0.07 |
| Jul | 4.35 | 4.13 | 0.22 |
| Aug | 3.57 | 3.55 | 0.02 |
| Sep | 2.86 | 2.78 | 0.08 |
| Oct | 2.51 | 2.43 | 0.08 |
| Nov | 1.04 | 1.02 | 0.02 |
| Dec | 0.73 | 0.76 | -0.03 |
27.14 | 26.55 | 0.59 |