| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.08 | 2.12 | -0.04 |
| Feb | 1.81 | 1.86 | -0.05 |
| Mar | 2.56 | 2.55 | 0.01 |
| Apr | 3.76 | 3.69 | 0.07 |
| May | 4.53 | 4.58 | -0.05 |
| Jun | 4.05 | 4.03 | 0.02 |
| Jul | 4.06 | 3.80 | 0.26 |
| Aug | 3.61 | 3.52 | 0.09 |
| Sep | 3.19 | 3.26 | -0.07 |
| Oct | 3.17 | 3.14 | 0.03 |
| Nov | 2.70 | 2.67 | 0.03 |
| Dec | 2.14 | 2.11 | 0.03 |
37.66 | 37.33 | 0.33 |