Now that I have your attention, let me calm things down. Dont worry, Hawaii is NEVER that bad so the worst of it is still quite enjoyable. But its important to look at the data being the weather patterns of the area to help you prepare/plan for your visit.

Hawaii has a tropical climate with average summer temperate at 88°F and winter temperature around at 76°F. Being close to the tropics, Hawaii gets a large total volume of rainfall per year but because of its equatorial nature and size, at a certain time, you may face pleasant moderating surfing weather or heavy rain storms straight out of Blade Runner.

Different locations of Hawaii(each station recorded its own dataset) varied largely in precipitation which ranged from 4 inches to 147 inches per year. From high slopes, mountaneous region to low lying islands, there is a drastic variability in geography. Add to that, this data records rainfall between August 2016-August 2017. Its important to note that 2016-17 were La Niña years. La Niña, a phenomenon in the Pacific that causes colder ocean temperatures and lasts about a year and a half and occurs during late fall into early winter. This phenomenon cause variability in rainfall that different regions of Hawaii recieve per year. Depending on which are you are visiting, you can expect to experience heavy showers if you go outdoors towards the slopes or somewhere close to Honolulu Observatory.

Hawaii's rainy season ranges from September to May, though there isnt a "conventional rainy season" because the island gets burst of rainfall over the year period. the maximum rainfall over the time period of the dataset was on 14th September 2016, though the month of september was one of the wettest with most number of days having rainfall over 2 inches.

We need to ask ourselves if information from rainfall for each month is a good indicator if your trip is going to suffer. Lets take a look at how many fluctuations we have for the precipitation data.

56% of all the recorded precipitation observations are between 0.05 and 0.00 inches of rain. Out of the rest, 30 percent are approx. 0 inches. That means that over the time period of 12 months, there have been several short outbursts with heavy downpour which cause the volume of total rain per year to go up. This would suggest, that no matter what time you go, you might experience rainfall in some capacity for a short time, and for certain days, a heavy downpour for a short time span too(but its bound to be for a short duration). The variance in geography and large size makes the data on the upper end of rainfall average but that is because of limited high volume rainfall periods. Over last year, there were 2021 precipitation values captured, which means about 5 different precipitation values per day on average. Looking below at the statistics of precipitation data, the mean value is 0.17 inches but its interesting to note that the 75th percentile value is still 0.13. That means most of the days with pleasant precipitation and few ocassions with large downpour. Considering that its the tropics, it rains in some area daily and is cloudy towards the mountains, but fear not because the "bothersome" precipitation values are marginal and you are bound to enjoy sunshine, aside for a short heavy rainfall, if any.

Hawaii, being a tropical region enjoys a moderate, consistant temperature all year long. There are two seasons - Summer from May – October and Winter which really should be reffered as "Cool" Summer for the rest of the year. Taking a subset of our dataset, lets look at the station with the most recorded temperature data points so get an estimate of the region.

The result is skewed towards the right which tells us that most of the temeprature values range from 65-80°F confirming the consistant moderate temperature in the island all year long. For the 12 month period, the highest temperature was 85°F with a minimum of 54°F. Keep in mind that this dataset was around La Niña, which causes the temperature to fall and during El Niño cycle(reverse of La Niña i.e raises the temperature, causes rainstorms), the temperature is bound to raise by a few degrees. But not enough to make it unpleasant.

So by now you know what to expect, but still havnt fully decided on the dates. Lets take a look at three popular vacation dates from different months and see how the temperature fares. We will use LA Times Holiday Period to analyze the following three vacation week periods -

• 4th of July entire week

• Thanksgiving week

• Christmas Week (12/24-12/30)

The maximum temperature is around 80°F and average temperature for the three different periods is around early to mid 70's. minimum temperature range for Christmas and Thanksgiving is expectedly lower. But we have to keep in mind that November and December get a lot more rainfall which may cause the temperature at night to fall. It's worth looking at the ticket prices/hotel prices for the three periods to see which one is more popular, but overall, the temperature factor shows consistency.

December	June

Since the two datasets refer to the same entity, i.e they are both paired to Hawaii's temperature at different times, we want to perform a paired t-test to see if they both are significant.Performing a Paired Significance t-test onto the two datasets(Temperature-June and Temperature-December) we get a p-vaue = 0.057, hence we accept the significance between the two datasets.

It means that the correlation betwenn the two temperatures in June and December is not by chance. There is not much variability between temperature values of Hawaii which confirms its consistant moderate nature.