| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.59 | 1.61 | -0.02 |
| Feb | 1.60 | 1.65 | -0.05 |
| Mar | 2.20 | 2.16 | 0.04 |
| Apr | 3.72 | 3.63 | 0.09 |
| May | 4.28 | 4.28 | 0.00 |
| Jun | 5.10 | 5.40 | -0.30 |
| Jul | 3.87 | 3.70 | 0.17 |
| Aug | 3.92 | 4.05 | -0.13 |
| Sep | 3.50 | 3.58 | -0.08 |
| Oct | 2.78 | 2.81 | -0.03 |
| Nov | 2.30 | 2.30 | 0.00 |
| Dec | 1.90 | 2.01 | -0.11 |
36.76 | 37.18 | -0.42 |