| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.69 | -0.03 |
| Feb | 0.74 | 0.79 | -0.05 |
| Mar | 1.50 | 1.47 | 0.03 |
| Apr | 2.60 | 2.58 | 0.02 |
| May | 3.59 | 3.58 | 0.01 |
| Jun | 4.80 | 4.70 | 0.10 |
| Jul | 3.82 | 3.64 | 0.18 |
| Aug | 4.07 | 3.89 | 0.18 |
| Sep | 3.03 | 2.98 | 0.05 |
| Oct | 2.35 | 2.26 | 0.09 |
| Nov | 1.26 | 1.26 | 0.00 |
| Dec | 0.88 | 0.93 | -0.05 |
29.30 | 28.77 | 0.53 |