Monthly average temperature and precipitation of the islands area

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Average Temperauture(Unit : ºC)
Niijima Miyakejima Hachijojima Chichijima
Jan. 9.3 9.6 10.4 18.2
Feb. 9.4 9.8 10.8 17.9
Mar. 11.1 10.8 11.8 17.8
Apr. 16.3 16 17.2 21.5
May. 19.5 19 19.4 23.5
Jun. 22.3 22.3 22.6 25.4
Jul. 23.6 23.4 24.4 27.3
Aug. 25.9 26.2 26.9 27.8
Sep. 24.7 24.7 25.3 28.3
Oct. 19.3 20 20.5 26.6
Nov. 17.6 18.3 18.8 24.7
Dec. 12.5 12.7 12.8 20.1
Ave. 17.6 17.7 18.4 23.3
Precipitation (Unit : mm)
Niijima Miyakejima Hachijojima Chichijima
Jan. 208 217 226 77
Feb. 94 157 364 19
Mar. 218 259 386 122
Apr. 110 222 171 67
May. 143 221 277 97
Jun. 144 201 412 161
Jul. 239 302 277 82
Aug. 422 578 127 49
Sep. 172 427 347 252
Oct. 250 489 153 111
Nov. 341 517 500 30
Dec. 65 186 289 61
Ave. 2406 3776 3529 1128
Excerpt from e-Library, Japan Meteorological Agency

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