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The tables below display average monthly climate and weather indicators in Hilo Hawaii.
Temperature by: Fahrenheit / Centigrade
| Hilo Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
71.7 |
71.7 |
72.0 |
72.7 |
73.9 |
75.2 |
75.8 |
76.3 |
76.2 |
75.7 |
74.2 |
72.4 |
74.0 |
| Avg. Max Temperature |
79.8 |
79.8 |
79.5 |
79.8 |
81.2 |
82.7 |
83.0 |
83.6 |
83.8 |
83.2 |
81.4 |
80.0 |
81.5 |
| Avg. Min Temperature |
63.6 |
63.6 |
64.4 |
65.5 |
66.5 |
67.6 |
68.6 |
68.9 |
68.6 |
68.1 |
66.8 |
64.8 |
66.4 |
| Days with Max Temp of 90 F or Higher |
< 0.5 |
< 0.5 |
< 0.5 |
0.0 |
< 0.5 |
< 0.5 |
0.0 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
0.0 |
| Days with Min Temp Below Freezing |
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 |
| | |
| Hilo Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
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 |
| Cooling Degree Days |
208 |
188 |
217 |
231 |
276 |
306 |
335 |
350 |
336 |
332 |
276 |
229 |
3284 |
| | |
| Hilo Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
9.9 |
10.3 |
13.9 |
15.3 |
9.9 |
6.2 |
9.7 |
9.3 |
8.5 |
9.6 |
14.5 |
12.0 |
129 |
| Days with Precipitation 0.01 inch or More |
17.0 |
17.0 |
23.0 |
25.0 |
25.0 |
25.0 |
28.0 |
26.0 |
24.0 |
24.0 |
23.0 |
21.0 |
278 |
| Monthly Snowfall (inches) |
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 |
| | |
| Other Hilo Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
7.4 |
7.7 |
7.7 |
7.5 |
7.4 |
7.1 |
6.9 |
6.8 |
6.8 |
6.7 |
6.8 |
7.2 |
7.2 |
| Clear Days |
6.0 |
5.0 |
3.0 |
1.0 |
1.0 |
2.0 |
1.0 |
2.0 |
3.0 |
3.0 |
3.0 |
5.0 |
36.0 |
| Partly Cloudy Days |
11.0 |
10.0 |
10.0 |
9.0 |
11.0 |
11.0 |
12.0 |
12.0 |
12.0 |
12.0 |
10.0 |
11.0 |
132 |
| Cloudy Days |
13.0 |
13.0 |
18.0 |
20.0 |
19.0 |
17.0 |
18.0 |
17.0 |
15.0 |
16.0 |
17.0 |
15.0 |
197 |
| Percent of Possible Sunshine |
46.0 |
46.0 |
42.0 |
37.0 |
37.0 |
44.0 |
41.0 |
42.0 |
43.0 |
39.0 |
33.0 |
37.0 |
41.0 |
| Avg. Relative Humidity |
64.0 |
72.0 |
73.0 |
74.0 |
74.5 |
73.5 |
73.5 |
74.5 |
74.5 |
74.0 |
75.5 |
76.0 |
74.5 |
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