| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.81 | -0.11 |
| Feb | 3.12 | 3.19 | -0.07 |
| Mar | 3.85 | 4.00 | -0.15 |
| Apr | 3.51 | 3.59 | -0.08 |
| May | 3.59 | 3.58 | 0.01 |
| Jun | 4.08 | 4.12 | -0.04 |
| Jul | 3.74 | 3.94 | -0.20 |
| Aug | 4.11 | 4.18 | -0.07 |
| Sep | 3.65 | 3.83 | -0.18 |
| Oct | 3.12 | 3.13 | -0.01 |
| Nov | 3.21 | 3.35 | -0.14 |
| Dec | 3.60 | 3.78 | -0.18 |
43.28 | 44.50 | -1.22 |