Well tonight is the one night of the year SE Texas is not in zone 9 with a low predicted tonight of 25F here in Missouri City and 22F in Beaumont. It is way cold out now 41F and cloudy. I predict if the clouds hold out the low doesn't get as low as 25F.

http://www.weather.com/weather/today/USTX0905:1:US

im right there with you, I hope you right about the clouds. id hate to lose my 8 trees tonight...

Got to 26F by my thermometer. Clouds held up. Thawed out now.

5F at my house this morning- coldest temps in over 5 years.

I have some mandarin trees and a citrangequat that I am hoping didn't get too damaged last night...

im not even sure how low I got, after looking at my digital therm again in a different spot tonight its not accurate with the 3 apps on my phone. I got 3 different numbers last night, from my therms, 18, 19 on my trees, and 30 under my carport. theres ice in the back yard, but I left a plastic cup on the ledge of my window and it didn't freeze. that baffles me, we had something like 24 hrs plus of freezing temps, I find it hard to believe my carport is that far above ambient with 2 open sides, one of which is north. I believe the official temp is 22 here, the only tree that's showing any damage so far is the meyer lemon

the wall with the therm is 12 feet from the house and covered, theres no heat to be had. the cup of water is next to the window, but I wouldn't think that much heat escapes from the window to keep a cup from freezing...ill figure it out one day

I read somewhere that trees could use watering after a freeze, is that a good idea???

Trees should be thoroughly watered before a freeze. - Millet

I watered them a bit before, don't know if it was enough though

In Tallahassee, temps at a weather station three blocks from the house reached a low of 21/22 the first night and 24/25 the second night, with about 14 hours at or below freezing each night. The house is in a dense (.15 to .75 acre lots) and relatively protected (lots of trees, on a south-facing hill) neighborhood, so the temps right around the house were almost certainly higher, but still cold enough to put an inch and a half of ice on the birdbath and burst a bit of piping that I apparently didn't drain well enough. Fortunately, there appears to have been relatively little damage, despite hasty preparations:

Most of the more tender plants went inside (under renovation, and currently without several windows, so it still got plenty cold - the soil in the pots was frozen to a depth of ~1/4-1/2"). These included mangoes, a large seedling avocado, an unknown Eugenia, pineapples, Australian finger lime, pummelos, Persian lime, Kaffir lime, Ponderosa lemon, Sanbokan lemon, and a few other, more hardy citrus plants. The only damage seems to have been to the new growth the lemons were putting on.

Those that stayed outside had varying levels of protection:

Under tarps, a Joey avocado, a Cara Cara, and a Meyer lemon and Lakeland limequat that are both starting to bloom, came through splendidly.

Two satsumas, a flame grapefruit, and a Dekopan/Shiranui came through unprotected with no apparent damage.

Elsewhere, there were clear signs of the first hard freeze: the Lion's mane, some gingers, ferns, lemongrass, and one small unprotected avocado seedling in a pot were killed back, and the remaining annuals like the Salvia coccinea and the milkweed got killed back. The Japanese maple finally lost most of its leaves.

We'll see how the citrus in Thomasville fared, out in the country where it probably actually reached those recorded lows.