| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.66 | -0.18 |
| Feb | 3.22 | 3.16 | 0.06 |
| Mar | 3.53 | 3.70 | -0.17 |
| Apr | 2.90 | 2.98 | -0.08 |
| May | 3.07 | 3.17 | -0.10 |
| Jun | 4.08 | 4.22 | -0.14 |
| Jul | 4.15 | 4.44 | -0.29 |
| Aug | 4.70 | 4.71 | -0.01 |
| Sep | 3.85 | 3.93 | -0.08 |
| Oct | 3.24 | 3.29 | -0.05 |
| Nov | 2.88 | 2.91 | -0.03 |
| Dec | 3.54 | 3.77 | -0.23 |
42.64 | 43.94 | -1.30 |