>
> American Samoa > Precipitation
Rainfall/ Precipitation in Pago Pago, Tutuila, American Samoa
- Pago Pago, Tutuila receives 3256 mm (128.2 in) of rainfall per year, or 271.3 mm (10.7 in) per month.
- On average there are 253 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 21.1 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in September when an average of 140 mm (5.5 in) of rainfall (precipitation) occurs.
- The wettest weather is in December when an average of 360 mm (14.2 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 190 (7.5) | 200 (7.9) | 140 (5.5) | 320 (12.6) | 250 (9.8) | 360 (14.2) | 296 (11.7) | 340 (13.4) | 320 (12.6) | 340 (13.4) | 260 (10.2) | 240 (9.4) | 3256 (128.2) | |
 | Precipitation Litres/m² (Gallons/ft²) | 190 (4.66) | 200 (4.91) | 140 (3.43) | 320 (7.85) | 250 (6.13) | 360 (8.83) | 296 (7.26) | 340 (8.34) | 320 (7.85) | 340 (8.34) | 260 (6.38) | 240 (5.89) | 3256 (79.86) | |
 | Number of Wet Days (probability of rain on a day) | 20 (65%) | 19 (61%) | 17 (57%) | 22 (71%) | 20 (67%) | 23 (74%) | 23 (74%) | 23 (81%) | 23 (74%) | 24 (80%) | 20 (65%) | 19 (63%) | 253 (69%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 66 (34) | 62 (38) | 64 (36) | 40 (60) | 49 (51) | 50 (50) | 54 (46) | 43 (57) | 66 (34) | 42 (58) | 51 (49) | 42 (58) | 53 (47) |