parse GRIB check, Sydney

20200501 [54.69749573 57.41155823 59.21858948] ok
20200502 [51.97318848 55.55209473 58.46303223] ok
20200503 [45.92867554 55.01656616 61.02828491] ok
20200504 [53.28748291 59.00037354 62.53709229] OK
20200505 [49.20707825 58.18246887 63.52621887]
20200506 [48.28738525 58.630354   64.508479  ]
20200507 [55.30841797 61.85802734 65.63380859]
20200508 [55.65253723 63.57324036 67.99941223]
20200509 [54.88275269 58.41947144 61.34798706]
20200510 [43.80663879 52.25820129 57.86913879]
20200511 [41.37396362 53.92122925 61.8032605 ]
20200512 [46.40064819 56.35689819 62.25611694]
20200513 [47.98355835 55.6546521  59.9155896 ]
20200514 [52.05619019 58.86947144 63.04954956]
20200515 [53.11944702 59.86944702 64.0284314 ]
20200516 [48.51894958 59.31894958 65.34473083]
20200517 [51.78133972 60.68993347 66.1778241 ]
20200518 [57.4385022  63.5416272  67.14514282]
20200519 [52.88447693 60.42197693 64.67588318]
20200520 [59.27906921 62.66813171 64.37320984]
20200521 [49.63461121 53.89203308 57.45336121]
20200522 [54.28715637 56.16450012 57.89770325]
20200523 [57.77273376 60.04031189 62.00906189]
20200524 [55.38757446 58.36882446 60.66804321]
20200525 [57.18021362 60.2563855  63.88802612]
20200526 [55.2185498  60.95956543 64.7951123 ]
20200527 [49.87902954 57.68371704 62.98879517]
20200528 [51.84025391 58.08751953 61.27619141]
20200529 [48.95472229 57.70862854 63.04886292]
20200530 [51.02179993 58.99875305 63.68156555]
20200531 [51.02971008 59.03127258 63.85119446]
20200601 [47.43827942 50.97851379 53.57304504]
20200602 [47.39716309 53.06083496 57.11083496]
20200603 [49.32493408 55.74094971 60.27962158]
20200604 [40.34075439 52.13567627 59.25481689]

20200201 [85.42057007 84.02838257 80.69557007] ok
20200202 [72.65275391 74.10119141 75.01876953] ok
20200203 [66.27101563 67.364375   68.3909375 ] accu lowester =69??
20200204 [64.36796387 68.53046387 70.94218262] ok
20200205 [69.50239685 71.9422406  73.8125531 ] ok
20200206 [69.03860901 69.81907776 70.87728088]
20200207 [68.51425903 69.89941528 71.14394653]
20200208 [69.94009216 71.33227966 72.20415466] ok
20200209 [70.44238708 72.49902771 73.83848083] accu highest =73
20200210 [71.02411316 73.51669128 75.13036316] ok
20200211 [72.52267578 73.35236328 73.94298828] ok
20200212 [71.87231262 73.134422   74.0484845 ] ok
20200213 [69.81970947 71.18025635 72.62869385] ok
20200214 [63.35604065 68.16893127 70.93221252] ok
20200215 [69.59542358 71.13878296 72.50987671] ok
20200216 [69.77345703 70.77189453 72.17111328]
20200217 [68.70638245 69.96146057 71.84583557]
20200218 [71.55090759 74.46536072 76.39543884]
20200219 [62.24837158 66.23509033 69.00540283]
20200220 [65.95809753 68.62645691 70.29637878]
20200221 [65.9602124  67.86216553 69.57779053]
20200222 [67.26851929 69.59586304 71.26930054]
20200223 [66.54913452 70.53233765 73.58390015]
20200224 [69.20247009 72.15559509 74.51106384]
20200225 [70.63610352 72.92125977 74.07790039]
20200226 [66.98534668 68.2685498  69.8435498 ]
20200227 [62.1200238  67.84697693 71.67900818]
20200228 [64.9325238  69.38330505 72.13955505]

20200101 [68.14981506 68.90215881 69.64395569]
20200102 [72.22313354 71.87860229 72.21610229]
20200103 [70.79559753 71.67450378 72.45497253]
20200104 [72.45434082 71.35043457 71.24848145]
20200105 [65.98767822 68.07244385 69.59119385]
20200106 [70.49959839 71.12537964 71.67381714]
20200107 [72.76250732 71.9152417  71.83438232]
20200108 [70.55233276 70.13748901 70.43631714]
20200109 [70.05380066 71.14716003 72.31434753]
20200110 [74.5925     74.42375    73.42179688]
20200111 [66.07452515 66.83390015 68.14522827]
20200112 [63.734245   67.48190125 69.97096375]
20200113 [66.29985474 69.44633911 71.40805786]
20200114 [66.34646423 69.18357361 70.84294861]
20200115 [70.94797791 72.02024353 72.50539978]
20200116 [69.4866864  70.1757489  71.26910828]
20200117 [69.43158997 69.36830872 69.95541809]
20200118 [67.21663635 69.42796448 71.11546448]
20200119 [68.61338318 70.3747113  71.90049255]
20200120 [66.7152478  70.40313843 72.92032593]
20200121 [68.89751709 71.85064209 74.31157959]
20200122 [69.36053589 73.77264526 75.85741089]
20200123 [82.19737366 81.41690491 80.64698303] hottest day in day! YES!
20200124 [74.66792114 74.88588989 75.74018677]
20200125 [75.09248779 75.24365967 76.31240967]
20200126 [74.91036194 75.53262756 76.08106506]
20200127 [74.40147522 74.87960022 75.69874084]
20200128 [74.32577942 74.36093567 75.09218567]
20200129 [68.65175293 71.80175293 73.67206543]