| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 4.03 | -0.41 |
| Feb | 2.98 | 3.19 | -0.21 |
| Mar | 3.91 | 3.76 | 0.15 |
| Apr | 3.89 | 4.16 | -0.27 |
| May | 4.45 | 4.62 | -0.17 |
| Jun | 4.47 | 4.44 | 0.03 |
| Jul | 3.89 | 4.55 | -0.66 |
| Aug | 4.01 | 3.87 | 0.14 |
| Sep | 4.74 | 5.15 | -0.41 |
| Oct | 3.53 | 3.27 | 0.26 |
| Nov | 3.53 | 3.36 | 0.17 |
| Dec | 3.71 | 4.00 | -0.29 |
46.73 | 48.40 | -1.67 |