| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.17 | 3.12 | 0.05 |
| Feb | 2.55 | 2.52 | 0.03 |
| Mar | 3.65 | 3.70 | -0.05 |
| Apr | 3.70 | 3.58 | 0.12 |
| May | 3.83 | 3.96 | -0.13 |
| Jun | 4.19 | 4.33 | -0.14 |
| Jul | 4.45 | 4.50 | -0.05 |
| Aug | 4.19 | 4.05 | 0.14 |
| Sep | 4.55 | 4.64 | -0.09 |
| Oct | 4.05 | 4.00 | 0.05 |
| Nov | 3.21 | 3.11 | 0.10 |
| Dec | 3.51 | 3.53 | -0.02 |
45.05 | 45.04 | 0.01 |