| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.74 | -0.18 |
| Feb | 3.36 | 3.45 | -0.09 |
| Mar | 4.34 | 4.62 | -0.28 |
| Apr | 4.11 | 4.27 | -0.16 |
| May | 3.61 | 3.58 | 0.03 |
| Jun | 4.09 | 4.04 | 0.05 |
| Jul | 3.53 | 3.67 | -0.14 |
| Aug | 3.60 | 3.63 | -0.03 |
| Sep | 3.81 | 3.73 | 0.08 |
| Oct | 4.61 | 4.76 | -0.15 |
| Nov | 3.86 | 3.91 | -0.05 |
| Dec | 4.59 | 4.81 | -0.22 |
47.07 | 48.21 | -1.14 |