SAN FRANCISCO
Probability of Daily Rainfall
SAN FRANCISCO |
|
| Measurable | >=".10" inch | >=".25" inch | >=".50" inch | >="1.00" inch |
| Probability of Measurable (>= .01 inch) Rainfall | ||||||||||||
| Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | |
| 1 | 1% | 1% | 1% | 11% | 17% | 36% | 36% | 41% | 35% | 25% | 17% | 10% |
| 2 | 2% | 1% | 2% | 11% | 15% | 35% | 36% | 32% | 39% | 25% | 16% | 5% |
| 3 | 1% | 2% | 4% | 7% | 17% | 36% | 34% | 31% | 38% | 26% | 13% | 5% |
| 4 | 2% | 1% | 1% | 7% | 20% | 37% | 37% | 42% | 38% | 26% | 14% | 9% |
| 5 | 2% | 1% | 2% | 7% | 23% | 34% | 36% | 38% | 36% | 30% | 10% | 7% |
| 6 | 1% | 1% | 6% | 13% | 24% | 30% | 32% | 37% | 33% | 26% | 1% | 10% |
| 7 | 0% | 1% | 4% | 12% | 23% | 34% | 34% | 36% | 33% | 22% | 13% | 6% |
| 8 | 3% | 1% | 4% | 10% | 18% | 29% | 34% | 38% | 38% | 30% | 12% | 7% |
| 9 | 2% | 1% | 2% | 14% | 28% | 32% | 32% | 34% | 30% | 28% | 9% | 9% |
| 10 | 1% | 1% | 3% | 18% | 27% | 32% | 31% | 35% | 32% | 26% | 13% | 4% |
| 11 | 2% | 1% | 5% | 12% | 23% | 33% | 33% | 38% | 30% | 21% | 14% | 7% |
| 12 | 1% | 1% | 5% | 8% | 23% | 29% | 33% | 38% | 37% | 20% | 9% | 5% |
| 13 | 1% | 2% | 4% | 11% | 31% | 28% | 39% | 36% | 34% | 23% | 11% | 5% |
| 14 | 0% | 3% | 7% | 11% | 28% | 28% | 36% | 33% | 36% | 18% | 13% | 5% |
| 15 | 3% | 1% | 7% | 8% | 33% | 29% | 43% | 35% | 38% | 19% | 7% | 8% |
| 16 | 3% | 1% | 7% | 12% | 30% | 30% | 42% | 42% | 34% | 23% | 9% | 5% |
| 17 | 1% | 2% | 6% | 7% | 25% | 34% | 34% | 37% | 29% | 21% | 11% | 3% |
| 18 | 0% | 5% | 7% | 13% | 27% | 36% | 38% | 41% | 31% | 15% | 11% | 3% |
| 19 | 1% | 4% | 5% | 9% | 32% | 35% | 40% | 36% | 28% | 23% | 15% | 3% |
| 20 | 1% | 2% | 1% | 11% | 25% | 34% | 32% | 34% | 31% | 16% | 11% | 3% |
| 21 | 1% | 2% | 3% | 14% | 28% | 38% | 34% | 40% | 26% | 17% | 12% | 1% |
| 22 | 1% | 2% | 8% | 11% | 25% | 38% | 41% | 33% | 34% | 16% | 8% | 3% |
| 23 | 3% | 2% | 8% | 17% | 29% | 38% | 41% | 36% | 31% | 16% | 7% | 5% |
| 24 | 1% | 3% | 7% | 13% | 26% | 40% | 39% | 35% | 30% | 16% | 12% | 3% |
| 25 | 2% | 2% | 7% | 13% | 26% | 35% | 40% | 33% | 29% | 16% | 8% | 1% |
| 26 | 1% | 3% | 7% | 16% | 23% | 39% | 40% | 30% | 26% | 17% | 11% | 1% |
| 27 | 3% | 2% | 4% | 17% | 21% | 37% | 36% | 32% | 31% | 15% | 13% | 3% |
| 28 | 1% | 3% | 7% | 19% | 24% | 37% | 35% | 30% | 29% | 12% | 10% | 3% |
| 29 | 1% | 2% | 10% | 23% | 34% | 38% | 36% | 10% | 30% | 15% | 7% | 3% |
| 30 | 1% | 5% | 11% | 23% | 32% | 38% | 40% | 30% | 15% | 7% | 2% | |
| 31 | 1% | 2% | 12% | 33% | 34% | 27% | 14% | |||||
| Probability of Rainfall >= .10 inch | ||||||||||||
| Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | |
| 1 | 0% | 0% | 1% | 6% | 7% | 21% | 29% | 26% | 24% | 15% | 9% | 1% |
| 2 | 0% | 0% | 0% | 5% | 6% | 23% | 26% | 23% | 26% | 13% | 5% | 2% |
| 3 | 0% | 0% | 1% | 3% | 13% | 28% | 23% | 21% | 27% | 11% | 5% | 2% |
| 4 | 0% | 0% | 1% | 3% | 13% | 21% | 26% | 27% | 21% | 13% | 5% | 3% |
| 5 | 0% | 0% | 1% | 3% | 13% | 21% | 27% | 26% | 23% | 14% | 5% | 1% |
| 6 | 0% | 0% | 2% | 3% | 15% | 21% | 18% | 26% | 21% | 15% | 1% | 5% |
| 7 | 0% | 0% | 2% | 7% | 9% | 21% | 23% | 24% | 19% | 13% | 5% | 2% |
| 8 | 1% | 0% | 1% | 3% | 10% | 19% | 21% | 25% | 21% | 13% | 5% | 3% |
| 9 | 0% | 0% | 1% | 10% | 19% | 19% | 23% | 24% | 19% | 17% | 5% | 3% |
| 10 | 1% | 0% | 0% | 9% | 17% | 21% | 20% | 23% | 19% | 14% | 4% | 1% |
| 11 | 0% | 1% | 1% | 6% | 13% | 21% | 24% | 26% | 16% | 11% | 6% | 1% |
| 12 | 0% | 0% | 3% | 4% | 19% | 15% | 23% | 26% | 25% | 11% | 4% | 1% |
| 13 | 0% | 1% | 1% | 8% | 17% | 17% | 32% | 21% | 19% | 11% | 5% | 1% |
| 14 | 0% | 2% | 1% | 6% | 16% | 15% | 30% | 23% | 21% | 8% | 5% | 0% |
| 15 | 1% | 1% | 1% | 5% | 17% | 20% | 28% | 23% | 21% | 11% | 3% | 4% |
| 16 | 1% | 0% | 2% | 4% | 20% | 19% | 28% | 26% | 19% | 13% | 3% | 3% |
| 17 | 0% | 0% | 2% | 2% | 17% | 20% | 24% | 20% | 15% | 10% | 7% | 0% |
| 18 | 0% | 1% | 2% | 5% | 16% | 21% | 27% | 25% | 19% | 7% | 7% | 0% |
| 19 | 0% | 1% | 2% | 4% | 19% | 24% | 28% | 26% | 19% | 9% | 6% | 0% |
| 20 | 0% | 1% | 1% | 7% | 19% | 23% | 24% | 21% | 19% | 9% | 5% | 1% |
| 21 | 0% | 1% | 1% | 7% | 17% | 29% | 26% | 30% | 17% | 9% | 4% | 0% |
| 22 | 0% | 1% | 3% | 5% | 13% | 26% | 30% | 23% | 19% | 6% | 5% | 0% |
| 23 | 0% | 0% | 5% | 7% | 19% | 25% | 28% | 21% | 19% | 10% | 2% | 1% |
| 24 | 0% | 0% | 5% | 6% | 19% | 33% | 30% | 26% | 17% | 9% | 4% | 1% |
| 25 | 0% | 0% | 5% | 7% | 14% | 26% | 26% | 17% | 13% | 7% | 5% | 0% |
| 26 | 0% | 1% | 5% | 11% | 15% | 30% | 28% | 21% | 15% | 9% | 4% | 0% |
| 27 | 0% | 0% | 2% | 7% | 12% | 27% | 26% | 20% | 21% | 6% | 5% | 1% |
| 28 | 0% | 0% | 3% | 10% | 13% | 28% | 22% | 19% | 18% | 5% | 3% | 1% |
| 29 | 0% | 0% | 5% | 12% | 22% | 25% | 27% | 6% | 19% | 5% | 3% | 1% |
| 30 | 0% | 1% | 5% | 11% | 21% | 29% | 29% | 20% | 7% | 2% | 0% | |
| 31 | 0% | 0% | 5% | 22% | 19% | 19% | 4% | |||||
| Probability of Rainfall > .25 inch | ||||||||||||
| Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | |
| 1 | 0% | 0% | 0% | 2% | 6% | 16% | 17% | 18% | 15% | 11% | 3% | 0% |
| 2 | 0% | 0% | 0% | 3% | 5% | 15% | 17% | 17% | 15% | 7% | 1% | 1% |
| 3 | 0% | 0% | 1% | 2% | 7% | 17% | 15% | 17% | 15% | 8% | 3% | 1% |
| 4 | 0% | 0% | 0% | 1% | 7% | 13% | 16% | 21% | 16% | 9% | 3% | 1% |
| 5 | 0% | 0% | 0% | 2% | 9% | 15% | 19% | 18% | 15% | 8% | 3% | 0% |
| 6 | 0% | 0% | 1% | 3% | 9% | 13% | 11% | 12% | 15% | 10% | 0% | 3% |
| 7 | 0% | 0% | 1% | 5% | 3% | 13% | 17% | 17% | 9% | 9% | 3% | 1% |
| 8 | 1% | 0% | 0% | 1% | 6% | 11% | 15% | 17% | 13% | 8% | 1% | 2% |
| 9 | 0% | 0% | 0% | 7% | 13% | 12% | 15% | 15% | 15% | 7% | 1% | 0% |
| 10 | 0% | 0% | 0% | 5% | 11% | 15% | 14% | 13% | 17% | 9% | 3% | 0% |
| 11 | 0% | 1% | 0% | 3% | 11% | 17% | 17% | 17% | 9% | 7% | 2% | 1% |
| 12 | 0% | 0% | 2% | 1% | 11% | 8% | 15% | 21% | 14% | 5% | 2% | 1% |
| 13 | 0% | 0% | 1% | 5% | 15% | 11% | 21% | 18% | 14% | 5% | 2% | 1% |
| 14 | 0% | 1% | 1% | 5% | 11% | 11% | 18% | 15% | 14% | 5% | 3% | 0% |
| 15 | 0% | 0% | 0% | 4% | 11% | 12% | 21% | 16% | 11% | 7% | 3% | 2% |
| 16 | 0% | 0% | 1% | 4% | 15% | 14% | 18% | 19% | 12% | 7% | 0% | 1% |
| 17 | 0% | 0% | 0% | 1% | 13% | 14% | 15% | 13% | 7% | 5% | 4% | 0% |
| 18 | 0% | 1% | 1% | 2% | 11% | 13% | 18% | 19% | 9% | 5% | 4% | 0% |
| 19 | 0% | 1% | 1% | 1% | 11% | 18% | 16% | 19% | 13% | 5% | 3% | 0% |
| 20 | 0% | 0% | 0% | 4% | 12% | 15% | 20% | 15% | 13% | 3% | 3% | 0% |
| 21 | 0% | 0% | 1% | 7% | 8% | 23% | 13% | 19% | 11% | 5% | 1% | 0% |
| 22 | 0% | 0% | 1% | 3% | 9% | 22% | 19% | 13% | 12% | 2% | 3% | 0% |
| 23 | 0% | 0% | 1% | 4% | 11% | 19% | 23% | 11% | 13% | 5% | 1% | 1% |
| 24 | 0% | 0% | 1% | 4% | 12% | 23% | 24% | 19% | 9% | 4% | 2% | 0% |
| 25 | 0% | 0% | 3% | 5% | 12% | 20% | 19% | 9% | 7% | 3% | 5% | 0% |
| 26 | 0% | 0% | 1% | 7% | 11% | 21% | 21% | 13% | 9% | 6% | 1% | 0% |
| 27 | 0% | 0% | 1% | 5% | 9% | 19% | 16% | 14% | 16% | 3% | 4% | 0% |
| 28 | 0% | 0% | 1% | 6% | 11% | 17% | 13% | 14% | 13% | 2% | 3% | 0% |
| 29 | 0% | 0% | 2% | 7% | 15% | 18% | 18% | 2% | 11% | 3% | 1% | 1% |
| 30 | 0% | 0% | 3% | 8% | 14% | 21% | 17% | 8% | 5% | 2% | 0% | |
| 31 | 0% | 0% | 3% | 15% | 13% | 13% | 1% | |||||
| Probability of Rainfall > .50 inch | ||||||||||||
| Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | |
| 1 | 0% | 0% | 0% | 1% | 3% | 11% | 12% | 8% | 7% | 3% | 1% | 0% |
| 2 | 0% | 0% | 0% | 1% | 3% | 10% | 10% | 10% | 9% | 3% | 1% | 1% |
| 3 | 0% | 0% | ||||||||||