| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.80 | -0.20 |
| Feb | 2.97 | 3.25 | -0.28 |
| Mar | 4.28 | 4.53 | -0.25 |
| Apr | 4.23 | 4.43 | -0.20 |
| May | 3.65 | 3.50 | 0.15 |
| Jun | 4.21 | 4.17 | 0.04 |
| Jul | 3.68 | 3.74 | -0.06 |
| Aug | 4.05 | 3.99 | 0.06 |
| Sep | 4.27 | 4.26 | 0.01 |
| Oct | 4.63 | 4.62 | 0.01 |
| Nov | 3.95 | 4.04 | -0.09 |
| Dec | 4.41 | 4.76 | -0.35 |
47.93 | 49.09 | -1.16 |