Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage National Weather Service Forecast Office   Select to go to the NWS homepage
Pacific ENSO Applications Climate Center
banner piece
  banner piece
Local forecast by
"City, St" or Zip Code
Pacific ENSO Update

3rd Quarter, 2011 Vol. 17 No. 3


HI Flag State of Hawaii
Seasonal Precipitation Summary

The first half of 2011 has brought abundant rainfall to many areas of the Hawaiian islands. The Lihue, Honolulu, and Kahului airports received 252%, 316%, and 142% of normal, respectively, over the 6-month period. Early June heavy rain events and numerous trade wind showers produced well above normal monthly totals at most of the rain gages on Oahu.  Honolulu Airport’s 1.36 inches registered as the wettest June since 1980 and the fifth wettest in over 60 years of record. The Manoa Lyon Arboretum, Nuuanu Upper, Oahu Forest NWR, and upper Moanalua Valley (USGS) gauges posted measurable rainfall (at least 0.01 inches) on 29 out of 30 days. Drought conditions are no longer being reported on Lanai, Oahu, or Kauai.

Additional individual rainfall station information and specific island information for Hawaii can be found in the Monthly Precipitation Summaries.

Hawaii Rainfall Summary for Select Stations, 2nd Quarter and 1st Half 2011

Station  
April
May
June
2nd Qtr
1st Half
Lihue Airport
Rainfall (inches)
2.11
9.08
1.97
13.16
28.65
% of Normal
109%
609%
154%
279%
252%
Honolulu Airport
Rainfall (inches)
2.58
3.09
1.36
7.03
12.73
% of Normal
496%
774%
756%
639%
316%
Kahului Airport
Rainfall (inches)
0.06
1.32
0.28
1.66
9.53
% of Normal
7%
269%
311%
113%
142%
Hilo Airport
Rainfall (inches)
4.45
8.48
6.38
19.31
37.46
% of Normal
50%
115%
101%
85%
74%



Climate Outlook:
The following comments are from the U.S. Climate Prediction Center’s Hawaiian Seasonal Outlook Discussion: “ Below median precipitation amounts for Hawaii are forecast from ASO to SON 2011 based on the NCEP CFS and IRI multi-model ensemble prediction. With ENSO-neutral conditions expected for later in the year and into early 2012, equal chances for below, near, and above median precipitation amounts are forecast for OND 2011 and beyond.”

The effects of spring rainfall continue to produce improvements in drought conditions over leeward portions of the Big Island and Maui County. This improvement trend is expected to end as drier and warmer conditions take hold during the heart of the 2011 dry season.

For more information on weather and climate in Hawai'i go to:
http://www.prh.noaa.gov/pr/hnl/ or http://www.cpc.noaa.gov/products/predictions/long_range/fxhw40.html



Pacific ENSO Applications Climate (PEAC) Center
c/o NOAA NWS - Weather Forecast Office Honolulu
2525 Correa Road, suite 250
Honolulu, HI 96822
(808) 956-2324

Web Master's email: peac@noaa.gov
Page Last Modified: August 09 2011 02:01:40 GMT

Disclaimer
Credits
Glossary

Privacy Policy
About Us
Career Opportunities