The monthly/annual precipitation amounts are in inches and hundredths (e.g., 1122 = 11.22 inches, 522 = 5.22 inches, 55 = .55 inches).
Precipitation Table
LOCATION YEAR Island JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
Lower Tantalus 1997 Oahu 680 379 1403 1247 370 1246 799 498 675 963 818 748 9826
Lower Nuuanu 1997 Oahu 741 356 1473 956 321 925 625 435 546 884 762 600 8624
Kaneohe 1997 Oahu 899 375 1478 836 1077 586 477 436 600 678 581 685 8708
Upper Kalihi 1997 Oahu 1472 878 2176 1880 1310 1096 1222 976 1220 1160 1316 1122 15828
Upper Manoa 1997 Oahu 870 627 1819 2235 1112 1963 1490 759 1135 1447 1481 1327 16265
Manoa Valley 1997 Oahu 661 321 1072 896 327 677 430 220 507 554 747 479 6891
Aiea Hts. 1997 Oahu 859 247 1520 755 261 573 460 395 329 684 429 399 6911
Palolo Valley 1997 Oahu 966 556 1608 2200 1588 1188 1042 448 1018 1014 1570 1436 14634