| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.77 | 1.76 | 0.01 |
| Feb | 1.70 | 1.73 | -0.03 |
| Mar | 2.44 | 2.32 | 0.12 |
| Apr | 3.58 | 3.58 | 0.00 |
| May | 4.75 | 4.63 | 0.12 |
| Jun | 4.78 | 4.71 | 0.07 |
| Jul | 3.93 | 3.97 | -0.04 |
| Aug | 3.77 | 3.81 | -0.04 |
| Sep | 3.57 | 3.42 | 0.15 |
| Oct | 3.05 | 2.98 | 0.07 |
| Nov | 2.48 | 2.42 | 0.06 |
| Dec | 1.98 | 2.00 | -0.02 |
37.80 | 37.33 | 0.47 |