| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.58 | 0.27 |
| Feb | 2.89 | 2.76 | 0.13 |
| Mar | 3.69 | 3.75 | -0.06 |
| Apr | 3.98 | 4.07 | -0.09 |
| May | 3.62 | 3.58 | 0.04 |
| Jun | 4.04 | 3.97 | 0.07 |
| Jul | 3.20 | 3.12 | 0.08 |
| Aug | 3.15 | 3.15 | 0.00 |
| Sep | 3.86 | 3.66 | 0.20 |
| Oct | 5.13 | 5.20 | -0.07 |
| Nov | 4.56 | 4.35 | 0.21 |
| Dec | 4.64 | 4.59 | 0.05 |
46.61 | 45.78 | 0.83 |