| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.74 | 1.70 | 0.04 |
| Feb | 1.70 | 1.73 | -0.03 |
| Mar | 2.21 | 2.25 | -0.04 |
| Apr | 3.59 | 3.46 | 0.13 |
| May | 4.55 | 4.74 | -0.19 |
| Jun | 4.75 | 4.62 | 0.13 |
| Jul | 3.88 | 3.76 | 0.12 |
| Aug | 3.91 | 3.90 | 0.01 |
| Sep | 3.46 | 3.34 | 0.12 |
| Oct | 3.06 | 2.96 | 0.10 |
| Nov | 2.44 | 2.31 | 0.13 |
| Dec | 1.96 | 1.98 | -0.02 |
37.25 | 36.75 | 0.50 |