| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.77 | -0.09 |
| Feb | 4.28 | 4.22 | 0.06 |
| Mar | 4.76 | 4.73 | 0.03 |
| Apr | 4.96 | 5.00 | -0.04 |
| May | 5.19 | 5.29 | -0.10 |
| Jun | 4.43 | 4.50 | -0.07 |
| Jul | 4.43 | 4.62 | -0.19 |
| Aug | 3.58 | 3.44 | 0.14 |
| Sep | 3.76 | 3.54 | 0.22 |
| Oct | 3.97 | 3.95 | 0.02 |
| Nov | 3.84 | 3.84 | 0.00 |
| Dec | 4.60 | 4.66 | -0.06 |
51.48 | 51.56 | -0.08 |