| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.52 | 0.08 |
| Feb | 2.05 | 2.09 | -0.04 |
| Mar | 2.68 | 2.74 | -0.06 |
| Apr | 3.89 | 3.92 | -0.03 |
| May | 4.50 | 4.56 | -0.06 |
| Jun | 4.65 | 4.59 | 0.06 |
| Jul | 4.48 | 4.44 | 0.04 |
| Aug | 3.85 | 3.73 | 0.12 |
| Sep | 3.00 | 3.05 | -0.05 |
| Oct | 2.93 | 2.88 | 0.05 |
| Nov | 3.14 | 3.08 | 0.06 |
| Dec | 2.42 | 2.41 | 0.01 |
40.19 | 40.01 | 0.18 |