| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 3.04 | 0.10 |
| Feb | 2.69 | 2.60 | 0.09 |
| Mar | 3.58 | 3.33 | 0.25 |
| Apr | 3.76 | 3.42 | 0.34 |
| May | 4.30 | 4.07 | 0.23 |
| Jun | 3.99 | 3.73 | 0.26 |
| Jul | 4.19 | 3.85 | 0.34 |
| Aug | 3.65 | 3.08 | 0.57 |
| Sep | 3.56 | 3.21 | 0.35 |
| Oct | 2.87 | 2.68 | 0.19 |
| Nov | 2.83 | 2.65 | 0.18 |
| Dec | 3.19 | 3.06 | 0.13 |
41.75 | 38.72 | 3.03 |