Hilo, Hawaii
Geography and climate

Hilo, Hawaii

Section Title: Geography and climate
Table Section Text: None

Climate data for Hilo International Airport, Hawaii (1981–2010 normals, extremes 1949–present)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year

Record high °F (°C)	92 (33)	92 (33)	93 (34)	89 (32)	94 (34)	90 (32)	91 (33)	93 (34)	93 (34)	91 (33)	94 (34)	93 (34)	94 (34)

Mean maximum °F (°C)	84.9 (29.4)	84.8 (29.3)	84.4 (29.1)	83.3 (28.5)	84.6 (29.2)	85.6 (29.8)	86.3 (30.2)	86.9 (30.5)	86.8 (30.4)	86.9 (30.5)	85.6 (29.8)	84.2 (29.0)	88.9 (31.6)

Average high °F (°C)	79.0 (26.1)	78.8 (26.0)	79.0 (26.1)	78.9 (26.1)	80.6 (27.0)	82.2 (27.9)	82.8 (28.2)	83.2 (28.4)	83.3 (28.5)	82.6 (28.1)	80.8 (27.1)	79.4 (26.3)	80.8 (27.1)

Daily mean °F (°C)	71.4 (21.9)	71.2 (21.8)	71.8 (22.1)	72.2 (22.3)	73.7 (23.2)	75.2 (24.0)	76.1 (24.5)	76.4 (24.7)	76.2 (24.6)	75.6 (24.2)	74.1 (23.4)	72.3 (22.4)	73.9 (23.3)

Average low °F (°C)	63.8 (17.7)	63.5 (17.5)	64.6 (18.1)	65.5 (18.6)	66.9 (19.4)	68.2 (20.1)	69.2 (20.7)	69.3 (20.7)	69.7 (20.9)	69.1 (20.6)	67.3 (19.6)	65.1 (18.4)	66.9 (19.4)

Mean minimum °F (°C)	59.0 (15.0)	58.5 (14.7)	60.3 (15.7)	62.0 (16.7)	63.1 (17.3)	65.0 (18.3)	65.8 (18.8)	66.0 (18.9)	65.6 (18.7)	64.7 (18.2)	63.2 (17.3)	60.5 (15.8)	57.9 (14.4)

Record low °F (°C)	54 (12)	53 (12)	54 (12)	58 (14)	59 (15)	61 (16)	62 (17)	63 (17)	61 (16)	62 (17)	58 (14)	55 (13)	53 (12)

Average rainfall inches (mm)	9.26 (235)	9.56 (243)	13.43 (341)	11.54 (293)	8.12 (206)	7.37 (187)	10.81 (275)	9.85 (250)	9.94 (252)	9.77 (248)	15.50 (394)	11.57 (294)	126.72 (3,219)

Average rainy days (≥ 0.01 in)	16.3	15.8	21.4	24.9	23.5	25.1	26.8	26.8	24.3	23.6	23.0	20.6	272.1

Average relative humidity (%)	76.6	76.0	78.1	80.2	78.9	77.4	79.5	79.5	79.2	80.0	80.3	78.7	78.7

Mean monthly sunshine hours	161.0	152.0	152.7	135.9	155.0	176.9	167.2	174.9	161.5	136.3	115.0	129.0	1,817.4

Percent possible sunshine	47	47	41	36	38	44	41	44	44	38	34	38	41

Source: NOAA (relative humidity and sun 1961−1990)

Sentence(s)

Monthly mean temperatures in Hilo range from 71.2 °F (21.8 °C) in February to 76.4 °F (24.7 °C) in August.

final_sentence: Monthly mean temperatures in Hilo range from 71.2 °F (21.8 °C) in February to 76.4 °F (24.7 °C) in August.