| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 3.08 | 0.06 |
| Feb | 3.04 | 2.90 | 0.14 |
| Mar | 3.57 | 3.53 | 0.04 |
| Apr | 3.74 | 3.71 | 0.03 |
| May | 3.79 | 3.54 | 0.25 |
| Jun | 4.19 | 4.25 | -0.06 |
| Jul | 3.99 | 3.57 | 0.42 |
| Aug | 3.95 | 3.69 | 0.26 |
| Sep | 3.79 | 3.64 | 0.15 |
| Oct | 4.81 | 4.73 | 0.08 |
| Nov | 3.76 | 3.49 | 0.27 |
| Dec | 4.10 | 3.88 | 0.22 |
45.87 | 44.01 | 1.86 |