| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.04 | 0.06 |
| Feb | 3.02 | 2.89 | 0.13 |
| Mar | 3.62 | 3.52 | 0.10 |
| Apr | 3.72 | 3.72 | 0.00 |
| May | 3.74 | 3.50 | 0.24 |
| Jun | 4.15 | 4.11 | 0.04 |
| Jul | 4.02 | 3.58 | 0.44 |
| Aug | 3.86 | 3.65 | 0.21 |
| Sep | 3.83 | 3.61 | 0.22 |
| Oct | 4.71 | 4.61 | 0.10 |
| Nov | 3.73 | 3.49 | 0.24 |
| Dec | 4.09 | 3.91 | 0.18 |
45.59 | 43.63 | 1.96 |