NH Spring/SH Fall 2021 Discussion Thread

Another freeze at the airport. -1.5'C. I haven't checked my pws yet but I can guarantee it wasn't a freeze. The Uni station still had a very cold low of 1.2'C

That's disgusting. Are freezes still common for you this late in the year?

37 F (3 C) here this morning and that's gross enough.

It happens that the airport records mild frosts in June. Doean't really happen in the actual city though. The airport is very susceptible to radiational cooling. The mean minimum at the airport is 0.6'C in June and the all-time record is -4.5'C. In June 2009 the airport recorded -3.6'C. That month the uni station did record -1.0'C, but it's very rare for it to go below 0'C in June.

The record low max for this date is 57 F/14 C set in 1984. Forecast high of only 51 F/11 C today. Tomorrow's record low max of 53 F/12 C is also in jeopardy. 

Sounds like my day this past Thursday. High was 48 F and that was at midnight going in; when I got out of work at 4:30 pm it was 39 F (4 C) with rain and a north wind. Fucking disgusting, and the coldest I've ever seen it at that time of the day this late in the year.

Low was 26 F (-3 C) in Rhinelander, WI this morning. It's been one of those "seriously, get me out of this godforsaken state" kind of days.

"Record-breaking freeze in the southeast ( source: Weatherzone )
It has been the coldest May morning in more than half a century as widespread frost and sub-zero temperatures grip southeastern Australia.

Melbourne shivered through its coldest May morning in 72 years on Sunday, reaching a frost-inducing 1.7°C. It was also its coldest morning in 3 years and coldest outside of winter since 1970.

Records tumbled in Horsham as the mercury fell to a mind-numbing -4.3°C, its coldest May morning in 64 years of records. It was also the coldest May morning on record for Yarram (-3.3°C) and Kanagulk (-4.0°C), although these observation sites have only been around for 13 and 17 years respectively.

Temperatures also plummeted outside of Victoria, with Adelaide having its equal coldest May morning in 15 years, dropping to 3.5°C. However, if only considering the current West Terrace site (that was offline from 1979 to 2016), it was the coldest May morning in 101 years. Adelaide Airport was even colder despite being near the coast, reaching 2.2°C, its coldest May morning in 36 years.

Even locations a long distance away from the mainland felt the chill. Norfolk Island fell to a seemingly mild 12.5°C, but this was its coldest May morning in 42 years.

Dozens of locations throughout Victoria, eastern parts of South Australia, and southern New South Wales, had their coldest May morning in at least 15 years, and falling between 6 and 12 degrees below average for this time of year.



This big freeze was caused by a broad high pressure system that cleared skies and turned winds onshore. This pattern allows for the ground to cool rapidly overnight and brings this cold air to the coasts, where proximity to warmer waters often moderate overnight temperatures.

With the high pressure lingering for a few days, temperatures not seen in May in decades will likely greet the end of autumn on Monday, and continuing through the early week."

It's been a nice few days. Even though it's a return to average temps, it's lovely.

Again, sounds like my disgusting day this past Thursday.

Yesterday morning in Rhinelander, WI the low was 26 F (-3 C), which broke the date record low by a full four degrees. At least it got to 67 F (19 C) for a high under full sun the whole day. At my house the low and high were 37/66 (3/19) respectively; supposed to be the same but shifted up a few degrees today.