| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.21 | 0.27 |
| Feb | 2.98 | 2.85 | 0.13 |
| Mar | 4.01 | 3.85 | 0.16 |
| Apr | 3.79 | 3.90 | -0.11 |
| May | 4.57 | 4.86 | -0.29 |
| Jun | 4.43 | 4.22 | 0.21 |
| Jul | 4.26 | 4.21 | 0.05 |
| Aug | 3.57 | 3.88 | -0.31 |
| Sep | 3.55 | 3.62 | -0.07 |
| Oct | 2.80 | 2.89 | -0.09 |
| Nov | 2.99 | 2.99 | 0.00 |
| Dec | 3.60 | 3.49 | 0.11 |
44.03 | 43.97 | 0.06 |