2001 HONOLULU, HAWAII (HNL)



Oahu, on which Honolulu is located, is the third largest of the Hawaiian Islands. The Koolau Range, at an average elevation of 2,000 feet parallels the northeastern coast. The Waianae Mountains, somewhat higher in elevation, parallel the west coast. Honolulu Airport, the business and Waikiki districts, and a number of the residential areas of Honolulu lie along the southern coastal plain.

The climate of Hawaii is unusually pleasant for the tropics. Its outstanding features are the persistence of the trade winds, the remarkable variability in rainfall over short distances, the sunniness of the leeward lowlands in contrast to the persistent cloudiness over nearby mountain crests, the equable temperature, and the general infrequency of severe storms.

The prevailing wind throughout the year is the northeasterly trade wind, although its average frequency varies from more than 90 percent during the summer to only 50 percent in January.

Heavy mountain rainfall sustains extensive irrigation of cane fields and the water supply for Honolulu. Oahu is driest along the coast west of the Waianaes where rainfall drops to about 20 inches a year. Daytime showers, usually light, often occur while the sun continues to shine, a phenomenon referred to locally as liquid sunshine.

The moderate temperature range is associated with the small seasonal variation in the energy received from the sun and the tempering effect of the surrounding ocean. Honolulu Airport has recorded as high as the lower 90s and as low as the lower 50s.

Because of the trade winds, even the warmest months are usually comfortable. But when the trades diminish or give way to southerly winds, a situation known locally as kona weather, or kona storms when stormy, the humidity may become oppressively high.

Intense rains of the October to April winter season sometimes cause serious, flash flooding. Thunderstorms are infrequent and usually mild and hail seldom occurs. Infrequently, a small tornado or a waterspout may do some damage. Only a few tropical cyclones have struck Hawaii, although others have come near enough for their outlying winds, waves, clouds, and rain to affect the Islands.

NORMALS, MEANS, AND EXTREMES

HONOLULU, HI (HNL)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 22521

21 19′ 39″ N  157 56′ 35″ W  GRND:  15  BARO: � 0;18  HAWAII  (UTC + 10)

2001 Honolulu, Hawaii (HNL)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 80.1 80.5 81.6 82.8 84.7 86.5 87.5 88.7 88.5 86.9 84.1 81.2 84.4
MEAN DAILY MAXIMUM 52 80.0 80.0 81.0 82.4 84.2 86.1 86.9 88.0 87.9 86.5 83.7 81.0 84.0
HIGHEST DAILY MAXIMUM 32 88 88 88 91 93 92 94 93 95 94 93 89 95
YEAR OF OCCURRENCE 1996 1984 1998 1996 1988 1996 1995 1997 1994 1984 1986 1995 SEP 1994
MEAN OF EXTREME MAXS. 52 83.9 83.9 84.8 86.0 87.4 88.5 89.4 90.6 90.7 89.7 87.3 85.0 87.3
NORMAL DAILY MINIMUM 30 65.6 65.4 67.2 68.7 70.3 72.2 73.5 74.2 73.5 72.3 70.3 67.0 70.0
MEAN DAILY MINIMUM 52 65.7 65.5 67.0 68.7 70.2 72.2 73.4 74.2 73.5 72.3 70.4 67.6 70.1
LOWEST DAILY MINIMUM 32 53 53 55 57 60 65 66 67 66 61 57 54 53
YEAR OF OCCURRENCE 1998 1983 1976 1985 1989 1982 1990 1984 1985 1993 1990 1962 JAN 1998
MEAN OF EXTREME MINS. 52 58.8 58.9 60.8 63.5 65.5 68.1 69.8 70.2 69.2 67.0 64.4 60.2 64.7
NORMAL DRY BULB 30 72.9 73.0 74.4 75.8 77.5 79.4 80.5 81.4 81.0 79.6 77.2 74.1 77.2
MEAN DRY BULB 52 72.8 72.8 74.0 75.5 77.1 79.1 80.2 81.0 80.7 79.3 77.0 74.2 77.0
MEAN WET BULB 17 66.7 66.3 67.0 67.7 68.8 70.4 71.7 72.3 72.6 72.0 70.3 68.2 69.5
MEAN DEW POINT 17 62.9 62.5 62.6 63.2 64.3 65.7 67.1 67.9 68.7 68.2 66.7 64.6 65.4
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.0 0.0 0.3 1.4 4.4 11.2 9.6 4.1 0.4 0.0 31.4
MAXIMUM 32 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
MINIMUM 32 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
MINIMUM 0 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
H/C NORMAL HEATING DEG. DAYS 30 0 0 0 0 0 0 0 0 0 0 0 0 0
NORMAL COOLING DEG. DAYS 30 245 224 291 324 388 432 481 508 480 453 366 282 4474
RH NORMAL (PERCENT) 30 73 71 69 67 66 64 65 64 66 68 70 72 68
HOUR#x00A0; 02#x00A0; LST 30 81 79 76 75 74 73 73 72 74 76 78 80 76
HOUR#x00A0; 08#x00A0; LST 30 81 78 73 70 67 66 67 67 68 70 74 78 72
HOUR#x00A0; 14#x00A0; LST 30 62 59 57 56 54 52 52 51 52 56 59 61 56
HOUR#x00A0; 20#x00A0; LST 30 74 71 70 70 69 67 68 68 68 70 72 74 70
S PERCENT POSSIBLE SUNSHINE 46 65 68 72 70 72 74 76 77 77 71 64 63 71
W/O MEAN NO. DAYS WITH:
HEAVY FOG (VISBY 1/4 MI) 52 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
THUNDERSTORMS 52 0.7 1.1 0.8 0.5 0.3 0.1 0.2 0.1 0.5 0.8 0.9 0.7 6.7
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS) 51 4.3 4.4 4.6 4.9 4.6 4.4 4.2 4.1 4.2 4.5 4.6 4.4 4.4
MIDNIGHT-MIDNIGHT (OKTAS) 33 4.1 4.1 4.3 4.5 4.3 4.2 4.2 3.9 3.9 4.1 4.5 4.3 4.2
MEAN NO. DAYS WITH:
CLEAR 48 9.5 8.1 7.4 5.9 6.7 6.5 7.4 8.0 7.9 7.5 7.2 7.9 90.0
PARTLY CLOUDY 48 12.9 12.5 14.1 14.6 15.6 17.4 18.0 16.9 15.9 14.8 13.4 13.7 179.8
CLOUDY 49 8.5 7.6 9.3 9.6 8.7 6.2 5.1 5.7 5.7 8.1 8.8 8.7 92.0
PR MEAN STATION PRESSURE (IN) 28 29.98 29.99 30.04 30.03 30.03 30.02 30.00 29.98 29.99 29.96 29.97 29.98 30.00
MEAN SEA-LEVEL PRES. (IN) 17 30.00 30.01 30.06 30.06 30.04 30.02 30.01 30.00 29.99 29.97 29.99 30.01 30.01
WINDS MEAN SPEED (MPH) 52 9.4 10.1 11.3 11.7 11.6 12.6 13.4 13.0 11.4 10.7 10.9 10.6 11.4
PREVAIL. DIR (TENS OF DEGS) 5 06 06 06 06 06 06 06 06 06 06 06 06 06
MAXIMUM 2-MINUTE:
SPEED (MPH) 3 32 33 31 35 26 30 30 31 26 29 30 35 35
DIR. (TENS OF DEGS) 06 06 06 05 06 07 06 07 06 06 07 07 07
YEAR OF OCCURRENCE 2000 1999 1999 2000 2000 1999 1999 2001 1999 2001 2000 2001 DEC 2001
MAXIMUM 5-SECOND:
SPEED (MPH) 3 38 43 38 44 35 37 36 37 33 37 37 40 44
DIR. (TENS OF DEGS) 05 07 06 07 08 07 08 07 05 07 06 08 07
YEAR OF OCCURRENCE 2000 1999 1999 2000 2000 1999 2001 2001 2001 2001 2000 2001 APR 2000
PRECIPITATION NORMAL (IN) 30 3.55 2.21 2.20 1.54 1.13 0.50 0.59 0.44 0.78 2.28 3.00 3.80 22.02
MAXIMUM MONTHLY (IN) 55 14.74 13.68 20.79 8.92 7.23 2.46 2.33 3.08 2.74 11.15 18.79 17.29 20.79
YEAR OF OCCURRENCE 1949 1955 1951 1963 1965 1971 1989 1959 1947 1978 1996 1987 MAR 1951
MINIMUM MONTHLY (IN) 55 0.18 0.06 0.01 0.01 0.03 T 0.03 T 0.05 0.07 0.03 0.06 T
YEAR OF OCCURRENCE 1986 1983 1957 1960 2000 1959 1950 1974 1977 1996 1962 1976 AUG 1974
MAXIMUM IN 24 HOURS (IN) 52 6.72 6.88 17.07 4.21 3.44 2.28 2.20 2.35 1.40 7.57 9.15 8.25 17.07
YEAR OF OCCURRENCE 1963 1955 1958 1972 1965 1967 1989 1959 1963 1978 1954 1987 MAR 1958
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 9.7 8.6 9.2 9.5 7.9 5.8 7.4 6.1 7.4 8.8 9.8 10.5 100.7
PRECIPITATION 1.00 30 0.9 0.6 0.8 0.2 0.3 0.1 * 0.1 0.1 0.6 0.9 1.0 5.6
SNOWFALL NORMAL (IN) 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
MAXIMUM MONTHLY (IN) 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
YEAR OF OCCURRENCE
MAXIMUM IN 24 HOURS (IN) 52 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
YEAR OF OCCURRENCE
MAXIMUM SNOW DEPTH (IN) 48 0 0 0 0 0 0 0 0 0 0 0 0 0
YEAR OF OCCURRENCE
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2001 Honolulu, Hawaii (HNL)

PRECIPITATION (inches) 2001 HONOLULU, HI (HNL)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 5.28 5.00 2.45 5.15 0.12 0.79 0.20 0.46 0.92 2.39 0.59 3.59 26.94
1973 0.67 0.60 0.40 0.72 0.89 0.09 0.46 0.32 0.64 1.78 3.73 3.94 14.24
1974 4.21 1.28 3.49 4.13 0.82 1.52 0.44 T 2.08 2.77 2.69 0.59 24.02
1975 6.42 2.36 2.02 0.51 0.19 0.03 0.40 0.03 0.11 0.18 11.54 0.60 24.39
1976 1.29 6.08 2.67 0.71 0.26 0.18 0.24 0.17 0.33 0.45 0.46 0.06 12.90
1977 0.52 0.32 2.36 1.81 4.76 0.11 0.14 0.08 0.05 0.15 0.61 1.45 12.36
1978 0.34 0.75 1.37 2.07 3.39 1.06 0.20 0.83 0.28 11.15 1.55 2.06 25.05
1979 4.57 7.21 0.77 0.55 0.21 0.32 0.13 0.15 0.47 0.53 0.52 1.50 16.93
1980 8.91 2.26 3.04 1.13 0.78 1.76 0.37 0.36 0.41 0.30 0.21 7.37 26.90
1981 0.81 0.97 0.71 1.01 0.94 0.14 0.42 0.70 0.39 1.84 1.01 4.47 13.41
1982 12.82 2.16 3.73 1.28 0.13 0.35 0.20 1.98 0.52 7.24 1.32 3.19 34.92
1983 0.32 0.06 0.53 0.42 0.35 0.26 0.22 0.29 1.16 0.23 0.13 1.06 5.03
1984 0.21 0.60 1.08 2.41 0.16 0.08 0.23 0.04 1.36 1.89 3.58 5.44 17.08
1985 1.46 3.87 1.26 0.20 1.11 0.13 0.53 0.16 1.28 5.08 2.11 0.19 17.38
1986 0.18 1.38 0.17 0.35 0.81 0.36 1.54 0.90 2.00 1.23 4.23 0.78 13.93
1987 0.42 0.86 0.31 0.65 0.73 0.46 0.33 0.22 1.13 0.20 0.93 17.29 23.53
1988 3.05 1.31 0.67 0.50 1.25 0.04 0.12 0.34 0.86 0.23 1.39 6.71 16.47
1989 2.07 6.48 2.58 1.23 0.29 0.11 2.33 0.08 0.15 10.37 0.51 1.32 27.52
1990 4.32 4.15 0.86 0.30 0.30 0.08 0.49 0.01 0.98 0.47 2.96 4.92 19.84
1991 0.80 2.09 6.24 1.00 0.48 0.26 0.16 0.16 0.56 3.43 1.52 1.24 17.94
1992 0.43 1.35 0.72 0.11 1.13 0.10 2.01 0.97 2.08 2.57 1.04 6.49 19.00
1993 0.70 0.41 0.02 0.23 0.19 0.11 0.69 1.03 0.10 1.63 0.46 0.27 5.84
1994 0.78 7.04 3.77 0.46 0.09 0.23 0.48 0.14 0.39 1.56 0.20 0.45 15.59
1995 0.54 6.53 1.33 1.15 0.45 0.05 0.19 0.44 0.33 0.36 0.92 1.31 13.60
1996 3.52 1.00 2.68 0.34 0.13 1.01 0.74 2.17 0.78 0.07 18.79 1.89 33.12
1997 6.92 0.95 4.90 1.02 0.63 0.40 0.52 0.13 0.67 2.57 0.84 0.44 19.99
1998 0.77 0.21 0.03 0.54 0.16 0.29 0.19 0.15 0.05 0.13 0.85 1.15 4.52
1999 2.12 0.73 0.46 0.68 2.13 0.11 0.57 0.12 0.20 2.01 0.21 2.65 11.99
2000 1.26 0.07 0.38 0.46 0.03 0.03 0.41 1.17 0.78 0.25 2.09 0.17 7.10
2001 0.18 0.57 0.62 0.29 0.14 1.16 0.13 0.05 0.28 1.05 3.91 0.76 9.14
POR=55 YRS 3.51 2.46 2.55 1.23 0.90 0.40 0.49 0.52 0.69 1.81 2.72 3.17 20.45

2001 Honolulu, Hawaii (HNL)

AVERAGE TEMPERATURE (F) 2001 HONOLULU, HI (HNL)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 70.4 70.6 72.8 75.0 77.3 78.9 80.4 81.1 80.5 79.3 76.7 71.6 76.2
1973 72.9 72.6 76.1 75.5 77.1 79.2 80.5 81.2 81.0 79.4 77.0 73.8 77.2
1974 74.5 74.4 74.0 77.4 78.2 79.3 79.9 81.2 80.0 79.5 75.7 75.8 77.5
1975 72.4 72.8 73.0 74.5 75.7 78.1 79.0 80.1 79.4 79.1 77.1 73.0 76.2
1976 73.7 72.0 73.6 75.1 77.5 78.2 79.8 80.8 80.7 79.1 75.3 75.3 76.8
1977 73.7 75.6 76.2 76.3 77.6 79.5 80.9 82.2 81.6 81.1 78.6 75.1 78.2
1978 74.2 73.2 75.7 76.8 78.2 78.7 79.0 80.5 80.5 77.8 74.7 72.4 76.8
1979 69.9 72.1 72.8 74.8 78.0 80.0 80.9 80.4 81.1 81.0 77.4 75.3 77.0
1980 71.9 72.4 75.0 76.1 78.3 79.5 80.9 81.0 81.6 80.1 78.0 74.4 77.4
1981 73.2 73.6 74.7 75.9 77.3 80.6 79.7 80.1 80.7 78.3 76.7 74.0 77.1
1982 73.2 71.7 74.0 75.4 78.3 79.6 80.6 81.4 81.4 79.4 75.7 72.0 76.9
1983 71.9 71.3 73.5 74.6 75.7 78.9 79.7 82.4 82.3 81.1 80.1 75.1 77.2
1984 74.6 74.6 75.8 77.0 78.7 79.3 81.0 81.7 81.3 80.2 79.0 74.1 78.1
1985 71.4 73.9 74.5 74.5 76.5 79.2 81.6 81.9 81.1 79.8 75.1 73.3 76.9
1986 72.8 72.6 76.5 77.5 78.3 80.0 81.6 82.9 82.1 80.6 79.2 75.1 78.3
1987 73.4 71.2 74.0 76.0 75.7 80.4 82.1 82.7 82.9 81.4 78.8 75.8 77.9
1988 73.1 74.7 76.0 77.3 78.9 80.8 81.8 82.1 82.1 80.1 79.9 75.6 78.5
1989 74.5 73.6 75.3 74.5 78.4 80.9 81.6 81.4 81.9 78.6 76.7 72.9 77.5
1990 74.7 71.5 73.1 76.6 78.1 80.0 80.8 82.3 82.3 80.9 77.3 74.1 77.6
1991 72.4 73.4 72.9 75.9 77.8 79.4 81.2 82.4 81.5 80.0 79.5 76.2 77.7
1992 72.9 73.2 74.9 75.6 77.8 81.3 81.5 82.2 81.3 79.4 77.0 76.7 77.8
1993 70.9 71.1 74.0 77.4 77.2 80.2 80.6 81.3 81.1 79.7 76.3 75.0 77.1
1994 72.0 73.6 73.2 76.0 79.3 80.9 82.9 84.3 84.0 82.5 80.8 76.6 78.8
1995 74.2 73.4 75.6 76.4 78.6 81.3 83.3 83.4 83.2 82.7 80.2 79.1 79.3
1996 76.2 74.0 74.3 79.9 79.0 81.3 82.1 82.8 81.4 81.7 76.9 73.1 78.6
1997 72.3 74.7 75.3 76.3 76.2 81.1 81.5 82.6 82.7 80.6 76.4 74.0 77.8
1998 72.5 72.8 75.1 75.1 76.6 78.3 79.7 81.1 81.0 79.8 77.8 74.8 77.1
1999 73.3 73.7 74.6 75.4 77.1 78.8 79.3 80.8 80.2 78.3 76.9 74.1 76.9
2000 72.5 73.6 75.4 75.3 78.3 80.5 81.1 81.4 80.5 80.4 77.6 74.7 77.6
2001 75.4 74.1 75.0 76.6 78.2 79.7 81.5 82.2 82.1 79.9 77.4 76.4 78.2
POR=49 YRS 72.7 72.7 73.8 75.3 76.9 79.0 80.0 80.7 80.6 79.2 76.7 74.2 76.8

REFERENCE NOTES:

PAGE 1:

THE TEMPERATURE GRAPH SHOWS NORMAL MAXIMUM AND NORMAL MINIMUM DAILY TEMPERATURES (SOLID CURVES) AND THE ACTUAL DAILY HIGH AND LOW TEMPERATURES (VERTICAL BARS).

PAGE 2 AND 3:

H/C INDICATES HEATING AND COOLING DEGREE DAYS.

RH INDICATES RELATIVE HUMIDITY

W/O INDICATES WEATHER AND OBSTRUCTIONS

S INDICATES SUNSHINE.

PR INDICATES PRESSURE.

CLOUDINESS ON PAGE 3 IS THE SUM OF THE CEILOMETER AND SATELLITE DATA NOT TO EXCEED EIGHT EIGHTHS (OKTAS).

GENERAL:

T INDICATES TRACE PRECIPITATION, AN AMOUNT GREATER THAN ZERO BUT LESS THAN THE LOWEST REPORTABLE VALUE.

+ INDICATES THE VALUE ALSO OCCURS ON EARLIER DATES.

BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA.

NORMALS ARE 30–YEAR AVERAGES (1961–1990).

ASOS INDICATES AUTOMATED SURFACE OBSERVING SYSTEM.

PM INDICATES THE LAST DAY OF THE PREVIOUS MONTH.

POR (PERIOD OF RECORD) BEGINS WITH THE JANUARY DATA MONTH AND IS THE NUMBER OF YEARS USED TO COMPUTE THE MEAN. INDIVIDUAL MONTHS WITHIN THE POR MAY BE MISSING.

WHEN THE POR FOR A NORMAL IS LESS THAN 30 YEARS, THE NORMAL IS PROVISIONAL AND IS BASED ON THE NUMBER OF YEARS INDICATED.

0.* OR * INDICATES THE VALUE OR MEAN–DAYS–WITH IS BETWEEN 0.00 AND 0.05.

CLOUDINESS FOR ASOS STATIONS DIFFERS FROM THE NON–ASOS OBSERVATION TAKEN BY A HUMAN OBSERVER. ASOS STATION CLOUDINESS IS BASED ON TIME–AVERAGED CEILOMETER DATA FOR CLOUDS AT OR BELOW 12,000 FEET AND ON SATELLITE DATA FOR CLOUDS ABOVE 12,000 FEET.

THE NUMBER OF DAYS WITH CLEAR, PARTLY CLOUDY, AND CLOUDY CONDITIONS FOR ASOS STATIONS IS THE SUM OF THE CEILOMETER AND SATELLITE DATA FOR THE SUNRISE TO SUNSET PERIOD.

GENERAL CONTINUED:

CLEAR INDICATES 0–2 OKTAS, PARTLY CLOUDY INDICATES 3–6 OKTAS, AND CLOUDY INDICATES 7 OR 8 OKTAS. WHEN AT LEAST ONE OF THE ELEMENTS (CEILOMETER OR SATELLITE) IS MISSING, THE DAILY CLOUDINESS IS NOT COMPUTED.

WIND DIRECTION IS RECORDED IN TENS OF DEGREES (2 DIGITS) CLOCKWISE FROM TRUE NORTH. "00" INDICATES CALM. "36" INDICATES TRUE NORTH.

RESULTANT WIND IS THE VECTOR AVERAGE OF THE SPEED AND DIRECTION.

AVERAGE TEMPERATURE IS THE SUM OF THE MEAN DAILY MAXIMUM AND MINIMUM TEMPERATURE DIVIDED BY 2.

SNOWFALL DATA COMPRISE ALL FORMS OF FROZEN PRECIPITATION, INCLUDING HAIL.

A HEATING (COOLING) DEGREE DAY IS THE DIFFERENCE BETWEEN THE AVERAGE DAILY TEMPERATURE AND 65 F.

DRY BULB IS THE TEMPERATURE OF THE AMBIENT AIR.

DEW POINT IS THE TEMPERATURE TO WHICH THE AIR MUST BE COOLED TO ACHIEVE 100 PERCENT RELATIVE HUMIDITY.

WET BULB IS THE TEMPERATURE THE AIR WOULD HAVE IF THE MOISTURE CONTENT WAS INCREASED TO 100 PERCENT RELATIVE HUMIDITY.

ON JULY 1, 1996, THE NATIONAL WEATHER SERVICE BEGAN USING THE "METAR" OBSERVATION CODE THAT WAS ALREADY EMPLOYED BY MOST OTHER NATIONS OF THE WORLD. THE MOST NOTICEABLE DIFFERENCE IN THIS ANNUAL PUBLICATION WILL BE THE CHANGE IN UNITS FROM TENTHS TO EIGHTS (OKTAS) FOR REPORTING THE AMOUNT OF SKY COVER.

2001 Honolulu, Hawaii (HNL)

HEATING DEGREE DAYS (base 65 F) 2001 HONOLULU, HI (HNL)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1983-84 0 0 0 0 0 0 0 0 0 0 0 0 0
1984-85 0 0 0 0 0 0 0 0 0 0 0 0 0
1985-86 0 0 0 0 0 0 0 0 0 0 0 0 0
1986-87 0 0 0 0 0 0 0 0 0 0 0 0 0
1987-88 0 0 0 0 0 0 0 0 0 0 0 0 0
1988-89 0 0 0 0 0 0 0 0 0 0 0 0 0
1989-90 0 0 0 0 0 0 0 0 0 0 0 0 0
1990-91 0 0 0 0 0 0 0 0 0 0 0 0 0
1991-92 0 0 0 0 0 0 0 0 0 0 0 0 0
1992-93 0 0 0 0 0 0 0 0 0 0 0 0 0
1993-94 0 0 0 0 0 0 0 0 0 0 0 0 0
1994-95 0 0 0 0 0 0 0 0 0 0 0 0 0
1995-96 0 0 0 0 0 0 0 0 0 0 0 0 0
1996-97 0 0 0 0 0 0 0 0 0 0 0 0 0
1996-97 0 0 0 0 0 0
1997-98 0 0 0 0 0 0 0 0 0 0 0 0 0
1998-99 0 0 0 0 0 0 0 0 0
1999-00 0 0 0 0 0 0 0 0 0 0 0 0 0
2000-01 0 0 0 0 0 0 0 0 0 0 0 0 0
2001- 0 0 0 0 0

2001 Honolulu, Hawaii (HNL)

COOLING DEGREE DAYS (base 65 F) 2001 HONOLULU, HI (HNL)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 178 170 249 307 386 425 484 506 470 450 357 209 4191
1973 252 219 353 322 382 432 485 512 484 455 367 279 4542
1974 300 270 285 378 415 434 468 509 458 457 328 341 4643
1975 235 224 256 292 337 400 438 475 438 442 372 257 4166
1976 278 209 275 311 393 402 464 498 479 446 315 325 4395
1977 276 305 355 344 396 441 498 541 505 507 417 320 4905
1978 292 238 336 361 417 418 439 489 473 401 298 239 4401
1979 159 209 250 299 412 458 500 485 489 504 378 326 4469
1980 222 220 317 340 418 442 501 504 503 476 395 295 4633
1981 263 249 311 335 385 474 463 477 477 419 355 284 4492
1982 261 195 288 318 421 442 493 514 499 452 326 225 4434
1983 223 182 270 295 335 425 461 544 525 508 461 318 4547
1984 304 285 340 366 432 438 501 527 494 475 425 291 4878
1985 205 256 300 293 364 437 521 532 491 464 310 264 4437
1986 251 217 366 384 421 457 519 561 521 491 433 318 4939
1987 267 178 285 337 337 465 537 556 544 516 418 342 4782
1988 260 289 346 373 437 482 527 537 520 478 455 336 5040
1989 301 244 325 291 425 482 521 517 512 431 358 252 4659
1990 306 189 258 354 412 456 498 543 525 501 377 289 4708
1991 236 243 250 333 404 442 508 547 501 474 443 353 4734
1992 251 244 316 327 404 495 518 540 495 452 369 368 4779
1993 190 180 285 381 387 463 491 515 491 465 345 314 4507
1994 227 248 262 337 451 486 564 606 575 547 481 367 5151
1995 294 239 334 351 428 498 572 578 555 554 464 442 5309
1996 354 266 297 453 441 494 538 560 502 525 365 257 5052
1997 231 279 326 346 355 489 521 553 537 492 350 288 4767
1998 238 227 322 309 368 407 463 506 489 464 390 310 4493
1999 267 248 305 317 383 417 452 500 460 421 361 289 4420
2000 241 256 331 318 419 470 508 517 476 482 382 307 4707
2001 332 262 319 356 415 451 515 541 522 467 375 357 4912

2001 Honolulu, Hawaii (HNL)

SNOWFALL (inches) 2001 HONOLULU, HI (HNL)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1973-74 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1974-75 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1975-76 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1976-77 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1977-78 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1978-79 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1979-80 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1980-81 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1981-82 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1982-83 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1983-84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1984-85 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1985-86 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1986-87 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1987-88 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1988-89 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1989-90 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1990-91 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1991-92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1992-93 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1993-94 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1994-95 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1995-96 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1996-97 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1997-98 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1998-99
1999-00
2000-01
2001-
POR=50 YRS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0



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2001 Honolulu, Hawaii (HNL) forum