Historical weather forecast in Hilo in May 2021
Weather rating: 1/4 - Unfavorable
Access the daily history of weather forecasts in Hilo in May 2021, with the monthly averages and day-by-day details.
Weather summary for the month of May 2021 in Hilo
Find the main data from the archived weather forecasts in Hilo for May 2021.
What was the weather like that month?
The archived weather forecasts in Hilo in May 2021 predicted a mild month, with average highs of 21.0°C, lows of 18.6°C and an average temperature of 20.0°C. The forecasts predicted a very rainy month, with about 252.0 mm of accumulated rainfall. 27 days were forecast to have measurable precipitation. The most frequently reported type of weather at midday was Patchy rain nearby, accounting for about 54.8% of the days. On average, forecasts predicted about 19.1°C around 6 AM, 20.6°C around noon and 19.3°C around 6 PM. The hottest day reported reached 26.0°C on 31 of the month. The highest forecasted daily rainfall accumulation reached 43.4 mm on 7 of the month.
Max temp
21.0°C
Min temp
18.6°C
Avg. Temp
20.0°C
Rain
252.0 mm
Dominant weather conditions in May 2021
Compare the most frequently forecast weather conditions in Hilo, Hawaii over the month of May 2021 for the 6:00, 12:00 and 18:00 slots.
From 1er to 31 May 2021
6h
Main weather condition
Patchy rain nearby
17 days (54.8%)
19.1°C
Other common conditions
Light rain shower
18.8°C
5 days (16.1%)
Moderate or heavy rain shower
18.3°C
4 days (12.9%)
Partly Cloudy
21.0°C
4 days (12.9%)
12h
Main weather condition
Patchy rain nearby
17 days (54.8%)
20.2°C
Other common conditions
Partly Cloudy
23.3°C
6 days (19.4%)
Light rain shower
20.0°C
5 days (16.1%)
Moderate or heavy rain shower
18.7°C
3 days (9.7%)
18h
Main weather condition
Light rain shower
15 days (48.4%)
18.5°C
Other common conditions
Patchy rain nearby
20.8°C
8 days (25.8%)
Partly Cloudy
21.0°C
5 days (16.1%)
Moderate or heavy rain shower
16.5°C
2 days (6.5%)
From 1er to 10 May 2021
6h
Main weather condition
Patchy rain nearby
7 days (70%)
18.9°C
Other common conditions
Moderate or heavy rain shower
20.0°C
1 days (10%)
Heavy rain
17.0°C
1 days (10%)
Light rain shower
20.0°C
1 days (10%)
12h
Main weather condition
Light rain shower
4 days (40%)
20.8°C
Other common conditions
Patchy rain nearby
20.7°C
3 days (30%)
Moderate or heavy rain shower
18.0°C
2 days (20%)
Partly Cloudy
21.0°C
1 days (10%)
18h
Main weather condition
Light rain shower
6 days (60%)
19.5°C
Other common conditions
Moderate or heavy rain shower
16.5°C
2 days (20%)
Heavy rain
16.0°C
1 days (10%)
Patchy rain nearby
22.0°C
1 days (10%)
From 11 to 20 May 2021
6h
Main weather condition
Patchy rain nearby
5 days (50%)
19.0°C
Other common conditions
Moderate or heavy rain shower
17.7°C
3 days (30%)
Light rain shower
18.5°C
2 days (20%)
12h
Main weather condition
Patchy rain nearby
7 days (70%)
19.1°C
Other common conditions
Partly Cloudy
23.0°C
1 days (10%)
Light rain shower
17.0°C
1 days (10%)
Moderate or heavy rain shower
20.0°C
1 days (10%)
18h
Main weather condition
Light rain shower
6 days (60%)
17.2°C
Other common conditions
Partly Cloudy
19.5°C
2 days (20%)
Patchy rain nearby
19.5°C
2 days (20%)
From 21 to 31 May 2021
6h
Main weather condition
Patchy rain nearby
5 days (45.5%)
19.6°C
Other common conditions
Partly Cloudy
21.0°C
4 days (36.4%)
Light rain shower
18.5°C
2 days (18.2%)
12h
Main weather condition
Patchy rain nearby
7 days (63.6%)
21.1°C
Other common conditions
Partly Cloudy
24.0°C
4 days (36.4%)
18h
Main weather condition
Patchy rain nearby
5 days (45.5%)
21.0°C
Other common conditions
Light rain shower
19.3°C
3 days (27.3%)
Partly Cloudy
22.0°C
3 days (27.3%)
Weather calendar in Hilo in May 2021
Find the daily details of archived weather forecasts in Hilo for May 2021, including temperatures, rain, wind and humidity.
| DayDay | WeatherWeather | Max tempMax temp | Min tempMin temp | PrecipitationPrecipitation | RatingWeather rating: | WindWind | HumidityHumidity | HistoryHistory | DetailsDetails |
|---|---|---|---|---|---|---|---|---|---|
| 01 May |
Patchy rain nearby |
20.0°C | 18.0°C | 7.0 mm | 1/4 | 13.0 km/h | 74% | ||
| 02 May |
Moderate or heavy rain shower |
19.0°C | 16.0°C | 19.1 mm | 0/4 | 16.0 km/h | 81% | ||
| 03 May |
Partly Cloudy |
21.0°C | 16.0°C | 5.4 mm | 2/4 | 15.0 km/h | 81% | ||
| 04 May |
Patchy rain nearby |
21.0°C | 20.0°C | 2.6 mm | 2/4 | 18.0 km/h | 82% | ||
| 05 May |
Light rain shower |
21.0°C | 19.0°C | 15.0 mm | 0/4 | 13.0 km/h | 87% | ||
| 06 May |
Light rain shower |
21.0°C | 18.0°C | 21.5 mm | 0/4 | 12.0 km/h | 91% | ||
| 07 May |
Moderate or heavy rain shower |
19.0°C | 16.0°C | 43.4 mm | 0/4 | 10.0 km/h | 90% | ||
| 08 May |
Light rain shower |
23.0°C | 21.0°C | 7.5 mm | 1/4 | 17.0 km/h | 81% | ||
| 09 May |
Light rain shower |
22.0°C | 20.0°C | 8.3 mm | 1/4 | 16.0 km/h | 83% | ||
| 10 May |
Patchy rain nearby |
22.0°C | 20.0°C | 5.7 mm | 1/4 | 15.0 km/h | 79% | ||
| 11 May |
Partly Cloudy |
23.0°C | 21.0°C | 3.6 mm | 2/4 | 15.0 km/h | 77% | ||
| 12 May |
Patchy rain nearby |
21.0°C | 19.0°C | 6.5 mm | 1/4 | 16.0 km/h | 80% | ||
| 13 May |
Patchy rain nearby |
19.0°C | 18.0°C | 6.6 mm | 1/4 | 15.0 km/h | 78% | ||
| 14 May |
Patchy rain nearby |
19.0°C | 17.0°C | 7.2 mm | 1/4 | 20.0 km/h | 80% | ||
| 15 May |
Light rain shower |
17.0°C | 11.0°C | 17.2 mm | 0/4 | 21.0 km/h | 82% | ||
| 16 May |
Patchy rain nearby |
19.0°C | 16.0°C | 16.7 mm | 0/4 | 18.0 km/h | 80% | ||
| 17 May |
Patchy rain nearby |
20.0°C | 19.0°C | 9.9 mm | 1/4 | 14.0 km/h | 75% | ||
| 18 May |
Moderate or heavy rain shower |
20.0°C | 19.0°C | 15.4 mm | 0/4 | 13.0 km/h | 82% | ||
| 19 May |
Patchy rain nearby |
21.0°C | 20.0°C | 4.2 mm | 2/4 | 14.0 km/h | 81% | ||
| 20 May |
Patchy rain nearby |
18.0°C | 17.0°C | 4.6 mm | 1/4 | 13.0 km/h | 83% | ||
| 21 May |
Patchy rain nearby |
19.0°C | 17.0°C | 8.2 mm | 1/4 | 13.0 km/h | 83% | ||
| 22 May |
Partly Cloudy |
21.0°C | 18.0°C | 2.1 mm | 3/4 | 11.0 km/h | 79% | ||
| 23 May |
Patchy rain nearby |
23.0°C | 20.0°C | 3.8 mm | 2/4 | 18.0 km/h | 80% | ||
| 24 May |
Patchy rain nearby |
23.0°C | 20.0°C | 2.2 mm | 2/4 | 21.0 km/h | 80% | ||
| 25 May |
Patchy rain nearby |
22.0°C | 19.0°C | 1.4 mm | 3/4 | 16.0 km/h | 78% | ||
| 26 May |
Patchy rain nearby |
21.0°C | 20.0°C | 0.5 mm | 3/4 | 14.0 km/h | 79% | ||
| 27 May |
Patchy rain nearby |
22.0°C | 19.0°C | 1.7 mm | 2/4 | 14.0 km/h | 77% | ||
| 28 May |
Patchy rain nearby |
20.0°C | 18.0°C | 3.6 mm | 2/4 | 13.0 km/h | 81% | ||
| 29 May |
Partly Cloudy |
24.0°C | 21.0°C | 0.2 mm | 4/4 | 16.0 km/h | 75% | ||
| 30 May |
Partly Cloudy |
25.0°C | 22.0°C | 0.2 mm | 4/4 | 19.0 km/h | 71% | ||
| 31 May |
Partly Cloudy |
26.0°C | 23.0°C | 0.7 mm | 4/4 | 18.0 km/h | 77% |
Compare the weather for May 2021 in Hilo with other months in the archives
Compare the main data from archived weather forecasts in Hilo for May 2021 with one previous month and one following month among all available archives, to more easily spot differences in temperature, rain, wind and brightness.
| Data type | April 2021 | May 2021 | June 2021 | ||
|---|---|---|---|---|---|
| Average temperature | 20.4°C | 20.0°C | 22.2°C | ||
| Maximum temperature | 21.4°C | 21.0°C | 23.1°C | ||
| Minimum temperature | 19.1°C | 18.6°C | 20.7°C | ||
| Highest maximum temperature | 24.0°C | 26.0°C | 26.0°C | ||
| Highest minimum temperature | 21.0°C | 23.0°C | 23.0°C | ||
| Lowest minimum temperature | 14.0°C | 11.0°C | 16.0°C | ||
| Wind speed | 15 km/h | 15 km/h | 15 km/h | ||
| Wind temperature | 19.3°C | 18.8°C | 21.0°C | ||
| Average precipitation per day | 4.2 mm | 8.1 mm | 3.0 mm | ||
| Record rainfall in one day | 16.7 mm | 43.4 mm | 10.7 mm | ||
| Total precipitation over the month | 127.4 mm | 252.0 mm | 89.6 mm | ||
| Number of days with precipitation | 20 | 27 | 20 | ||
| Humidity | 79% | 80% | 77% | ||
| Visibility | 9.7 km | 9.4 km | 9.7 km | ||
| Cloud cover | 63% | 68% | 58% | ||
| Heat index | 23 | 22 | 25 | ||
| Dew point | 17.1°C | 18.0°C | 18.9°C | ||
| Pressure | 1,019 hPa | 1,020 hPa | 1,020 hPa | ||
| Sunrise time | 06:02:06 | 05:45:04 | 05:42:16 | ||
| Sunset time | 18:38:44 | 18:49:31 | 19:00:20 | ||
| Day length | 12:36 | 13:04 | 13:18 |
Average temperature
May 2021
20.0°C
April 2021
20.4°C
June 2021
22.2°C
Maximum temperature
May 2021
21.0°C
April 2021
21.4°C
June 2021
23.1°C
Minimum temperature
May 2021
18.6°C
April 2021
19.1°C
June 2021
20.7°C
Highest maximum temperature
May 2021
26.0°C
April 2021
24.0°C
June 2021
26.0°C
Highest minimum temperature
May 2021
23.0°C
April 2021
21.0°C
June 2021
23.0°C
Lowest minimum temperature
May 2021
11.0°C
April 2021
14.0°C
June 2021
16.0°C
Wind speed
May 2021
15 km/h
April 2021
15 km/h
June 2021
15 km/h
Wind temperature
May 2021
18.8°C
April 2021
19.3°C
June 2021
21.0°C
Average precipitation per day
May 2021
8.1 mm
April 2021
4.2 mm
June 2021
3.0 mm
Record rainfall in one day
May 2021
43.4 mm
April 2021
16.7 mm
June 2021
10.7 mm
Total precipitation over the month
May 2021
252.0 mm
April 2021
127.4 mm
June 2021
89.6 mm
Number of days with precipitation
May 2021
27
April 2021
20
June 2021
20
Humidity
May 2021
80%
April 2021
79%
June 2021
77%
Visibility
May 2021
9.4 km
April 2021
9.7 km
June 2021
9.7 km
Cloud cover
May 2021
68%
April 2021
63%
June 2021
58%
Heat index
May 2021
22
April 2021
23
June 2021
25
Dew point
May 2021
18.0°C
April 2021
17.1°C
June 2021
18.9°C
Pressure
May 2021
1,020 hPa
April 2021
1,019 hPa
June 2021
1,020 hPa
Sunrise time
May 2021
05:45:04
April 2021
06:02:06
June 2021
05:42:16
Sunset time
May 2021
18:49:31
April 2021
18:38:44
June 2021
19:00:20
Day length
May 2021
13:04
April 2021
12:36
June 2021
13:18
Nearby of Hilo
Find on the map and in the list the towns closest to of Hilo to view the archived weather forecast history for the same period.