| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 2.97 | 0.21 |
| Feb | 3.16 | 3.03 | 0.13 |
| Mar | 4.13 | 3.74 | 0.39 |
| Apr | 4.11 | 4.07 | 0.04 |
| May | 3.74 | 3.61 | 0.13 |
| Jun | 4.14 | 4.04 | 0.10 |
| Jul | 3.82 | 3.69 | 0.13 |
| Aug | 3.65 | 3.68 | -0.03 |
| Sep | 3.85 | 3.80 | 0.05 |
| Oct | 4.70 | 4.45 | 0.25 |
| Nov | 3.91 | 3.76 | 0.15 |
| Dec | 4.25 | 4.14 | 0.11 |
46.64 | 44.98 | 1.66 |