KBDL 150400Z AUTO 31521KT 99SM M18/M28 RMK SLP075 T11761275 IEM_DS3505
KBDL 150500Z AUTO 29316KT 99SM M19/M26 RMK SLP081 T11921259 IEM_DS3505
KBDL 150600Z AUTO 29317KT 1SM M20/M24 RMK SLP085 T11981242 52016 IEM_DS3505
KBDL 150700Z AUTO 29319KT 99SM M21/M30 RMK SLP098 T12141303 IEM_DS3505
KBDL 150800Z AUTO 29325KT 99SM M23/M28 RMK SLP105 T12311281 IEM_DS3505
KBDL 150900Z AUTO 29324KT 99SM M24/M30 RMK SLP125 T12421298 52030 IEM_DS3505
KBDL 151000Z AUTO 29323KT 99SM M25/M30 RMK SLP142 T12481303 IEM_DS3505
KBDL 151100Z AUTO 31517KT 99SM M26/M32 RMK SLP151 T12591320 IEM_DS3505
KBDL 151200Z AUTO 31512KT 99SM M26/M31 RMK SLP166 T12641309 52048 IEM_DS3505
KBDL 151300Z AUTO 31510KT 99SM M26/M32 RMK SLP176 T12641325 IEM_DS3505
KBDL 151400Z AUTO 31517KT 99SM M25/M31 RMK SLP183 T12531314 IEM_DS3505
KBDL 151500Z AUTO 36015KT 99SM M24/M35 RMK SLP190 T12371348 52028 IEM_DS3505
KBDL 151600Z AUTO 31518KT 99SM M23/M36 RMK SLP196 T12261359 IEM_DS3505
KBDL 151700Z AUTO 31515KT 99SM M23/M34 RMK SLP200 T12311342 IEM_DS3505
KBDL 151800Z AUTO 31524KT 99SM M22/M31 RMK SLP200 T12201314 52010 IEM_DS3505
KBDL 151900Z AUTO 36016KT 99SM M21/M30 RMK SLP203 T12091298 IEM_DS3505
KBDL 152000Z AUTO 31521KT 99SM M21/M31 RMK SLP207 T12091309 IEM_DS3505
KBDL 152100Z AUTO 33806KT 99SM M20/M29 RMK SLP224 T12031292 52028 IEM_DS3505
KBDL 152200Z AUTO 33813KT 99SM M21/M31 RMK SLP227 T12141314 IEM_DS3505
KBDL 152300Z AUTO 31507KT 99SM M21/M29 RMK SLP240 T12141292 IEM_DS3505
KBDL 160000Z AUTO 31503KT 99SM M21/M29 RMK SLP254 T12141292 52044 IEM_DS3505
KBDL 160100Z AUTO 27003KT 99SM M21/M29 RMK SLP257 T12091287 IEM_DS3505
KBDL 160200Z AUTO 22504KT 99SM M25/M32 RMK SLP261 T12481320 IEM_DS3505
KBDL 160300Z AUTO 22504KT 99SM M23/M29 RMK SLP268 T12311292 52014 IEM_DS3505
KBDL 160400Z AUTO 20303KT 99SM M25/M34 RMK SLP268 T12531337 IEM_DS3505
KBDL 160500Z AUTO 22503KT 99SM M26/M34 RMK SLP274 T12591342 IEM_DS3505
KBDL 160600Z AUTO 27002KT 99SM M26/M32 RMK SLP274 T12591320 51010 IEM_DS3505
KBDL 160700Z AUTO 22505KT 99SM M26/M30 RMK SLP278 T12591303 IEM_DS3505
KBDL 160800Z AUTO 22502KT 99SM M26/M30 RMK SLP284 T12591303 IEM_DS3505
KBDL 160900Z AUTO 22502KT 99SM M27/M31 RMK SLP288 T12701314 52012 IEM_DS3505
KBDL 161000Z AUTO 13502KT 6SM M26/M32 RMK SLP298 T12641325 IEM_DS3505
KBDL 161100Z AUTO 27003KT 6SM M28/M34 RMK SLP301 T12751342 IEM_DS3505
KBDL 161200Z AUTO 24803KT 6SM M28/M37 RMK SLP308 T12751370 52024 IEM_DS3505
KBDL 161300Z AUTO 06801KT 3SM M23/M28 RMK SLP312 T12311281 IEM_DS3505
I was just looking at the hourlies for BDL in 1943 and I think their official high of 0F maybe should have been -3F. It looks like they took the early 4z temp as the high instead of the 5z. I think we were on war time back then which was essentially a year round DST. So 4z would have been our local midnight, but not officially our standard 5z midnight.
Either way...lots of yore in these obs.