| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.35 | 1.29 | 0.06 |
| Feb | 1.59 | 1.55 | 0.04 |
| Mar | 2.68 | 2.67 | 0.01 |
| Apr | 3.58 | 3.58 | 0.00 |
| May | 4.96 | 5.03 | -0.07 |
| Jun | 4.67 | 4.88 | -0.21 |
| Jul | 3.51 | 3.53 | -0.02 |
| Aug | 3.32 | 3.30 | 0.02 |
| Sep | 3.62 | 3.53 | 0.09 |
| Oct | 3.30 | 3.34 | -0.04 |
| Nov | 2.12 | 1.99 | 0.13 |
| Dec | 1.91 | 1.79 | 0.12 |
36.61 | 36.48 | 0.13 |