| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.61 | 2.58 | 0.03 |
| Feb | 2.10 | 2.13 | -0.03 |
| Mar | 2.71 | 2.67 | 0.04 |
| Apr | 3.81 | 3.70 | 0.11 |
| May | 4.28 | 4.22 | 0.06 |
| Jun | 4.68 | 4.63 | 0.05 |
| Jul | 4.65 | 4.51 | 0.14 |
| Aug | 4.14 | 4.00 | 0.14 |
| Sep | 3.19 | 3.18 | 0.01 |
| Oct | 3.14 | 3.08 | 0.06 |
| Nov | 3.06 | 2.98 | 0.08 |
| Dec | 2.45 | 2.42 | 0.03 |
40.82 | 40.10 | 0.72 |