| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 3.36 | 0.44 |
| Feb | 3.24 | 3.03 | 0.21 |
| Mar | 4.03 | 3.73 | 0.30 |
| Apr | 4.02 | 3.77 | 0.25 |
| May | 4.06 | 3.77 | 0.29 |
| Jun | 4.20 | 3.96 | 0.24 |
| Jul | 5.06 | 4.30 | 0.76 |
| Aug | 4.13 | 3.74 | 0.39 |
| Sep | 3.75 | 3.53 | 0.22 |
| Oct | 3.19 | 2.57 | 0.62 |
| Nov | 3.46 | 2.91 | 0.55 |
| Dec | 3.97 | 3.50 | 0.47 |
46.91 | 42.17 | 4.74 |