| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.48 | 2.64 | -0.16 |
| Feb | 1.99 | 2.03 | -0.04 |
| Mar | 2.92 | 2.87 | 0.05 |
| Apr | 3.39 | 3.33 | 0.06 |
| May | 3.42 | 3.46 | -0.04 |
| Jun | 4.00 | 4.06 | -0.06 |
| Jul | 3.78 | 3.84 | -0.06 |
| Aug | 3.68 | 3.67 | 0.01 |
| Sep | 4.18 | 4.18 | 0.00 |
| Oct | 3.74 | 3.59 | 0.15 |
| Nov | 2.78 | 2.78 | 0.00 |
| Dec | 2.74 | 2.75 | -0.01 |
39.10 | 39.20 | -0.10 |