| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.13 | 0.07 |
| Feb | 1.91 | 1.72 | 0.19 |
| Mar | 2.26 | 2.30 | -0.04 |
| Apr | 3.02 | 2.86 | 0.16 |
| May | 3.56 | 3.32 | 0.24 |
| Jun | 4.13 | 4.18 | -0.05 |
| Jul | 3.95 | 3.91 | 0.04 |
| Aug | 3.58 | 3.46 | 0.12 |
| Sep | 3.42 | 3.40 | 0.02 |
| Oct | 3.80 | 3.64 | 0.16 |
| Nov | 2.70 | 2.67 | 0.03 |
| Dec | 2.61 | 2.53 | 0.08 |
37.14 | 36.12 | 1.02 |