| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.69 | -0.15 |
| Feb | 2.96 | 3.06 | -0.10 |
| Mar | 4.28 | 4.23 | 0.05 |
| Apr | 3.74 | 3.87 | -0.13 |
| May | 3.85 | 3.73 | 0.12 |
| Jun | 4.18 | 4.26 | -0.08 |
| Jul | 4.21 | 4.16 | 0.05 |
| Aug | 4.44 | 4.66 | -0.22 |
| Sep | 3.95 | 3.90 | 0.05 |
| Oct | 4.04 | 4.13 | -0.09 |
| Nov | 3.34 | 3.30 | 0.04 |
| Dec | 4.23 | 4.51 | -0.28 |
46.76 | 47.50 | -0.74 |