Home/BlogThe Version 6.1 global average lower tropospheric temperature (LT) anomaly for November, 2025 was +0.43 deg. C departure from the 1991-2020 mean, down from the October, 2025 value of +0.53 deg. C.
The Version 6.1 global area-averaged linear temperature trend (January 1979 through November 2025) remains at +0.16 deg/ C/decade (+0.22 C/decade over land, +0.13 C/decade over oceans).
The following table lists various regional Version 6.1 LT departures from the 30-year (1991-2020) average for the last 23 months (record highs are in red).
| YEAR | MO | GLOBE | NHEM. | SHEM. | TROPIC | USA48 | ARCTIC | AUST |
| 2024 | Jan | +0.80 | +1.02 | +0.58 | +1.20 | -0.19 | +0.40 | +1.12 |
| 2024 | Feb | +0.88 | +0.95 | +0.81 | +1.17 | +1.31 | +0.86 | +1.16 |
| 2024 | Mar | +0.88 | +0.96 | +0.80 | +1.26 | +0.22 | +1.05 | +1.34 |
| 2024 | Apr | +0.94 | +1.12 | +0.76 | +1.15 | +0.86 | +0.88 | +0.54 |
| 2024 | May | +0.78 | +0.77 | +0.78 | +1.20 | +0.05 | +0.20 | +0.53 |
| 2024 | June | +0.69 | +0.78 | +0.60 | +0.85 | +1.37 | +0.64 | +0.91 |
| 2024 | July | +0.74 | +0.86 | +0.61 | +0.97 | +0.44 | +0.56 | -0.07 |
| 2024 | Aug | +0.76 | +0.82 | +0.69 | +0.74 | +0.40 | +0.88 | +1.75 |
| 2024 | Sep | +0.81 | +1.04 | +0.58 | +0.82 | +1.31 | +1.48 | +0.98 |
| 2024 | Oct | +0.75 | +0.89 | +0.60 | +0.63 | +1.90 | +0.81 | +1.09 |
| 2024 | Nov | +0.64 | +0.87 | +0.41 | +0.53 | +1.12 | +0.79 | +1.00 |
| 2024 | Dec | +0.62 | +0.76 | +0.48 | +0.52 | +1.42 | +1.12 | +1.54 |
| 2025 | Jan | +0.45 | +0.70 | +0.21 | +0.24 | -1.06 | +0.74 | +0.48 |
| 2025 | Feb | +0.50 | +0.55 | +0.45 | +0.26 | +1.04 | +2.10 | +0.87 |
| 2025 | Mar | +0.57 | +0.74 | +0.41 | +0.40 | +1.24 | +1.23 | +1.20 |
| 2025 | Apr | +0.61 | +0.77 | +0.46 | +0.37 | +0.82 | +0.85 | +1.21 |
| 2025 | May | +0.50 | +0.45 | +0.55 | +0.30 | +0.15 | +0.75 | +0.99 |
| 2025 | June | +0.48 | +0.48 | +0.47 | +0.30 | +0.81 | +0.05 | +0.39 |
| 2025 | July | +0.36 | +0.49 | +0.23 | +0.45 | +0.32 | +0.40 | +0.53 |
| 2025 | Aug | +0.39 | +0.39 | +0.39 | +0.16 | -0.06 | +0.69 | +0.11 |
| 2025 | Sep | +0.53 | +0.56 | +0.49 | +0.35 | +0.38 | +0.77 | +0.32 |
| 2025 | Oct | +0.53 | +0.52 | +0.55 | +0.24 | +1.12 | +1.42 | +1.67 |
| 2025 | Nov | +0.43 | +0.59 | +0.27 | +0.24 | +1.32 | +0.78 | +0.37 |
The full UAH Global Temperature Report, along with the LT global gridpoint anomaly image for November, 2025, and a more detailed analysis by John Christy, should be available within the next several days here.
The monthly anomalies for various regions for the four deep layers we monitor from satellites will be available in the next several days at the following locations:
Latest NOAA prediction for ENSO (early November): currently in La Niña, 61% chance of moving to ENSO-neutral by Jan-March 2026. I never cease to be amazed by this (ENSO) phenomenon. The larger events (El and La) match up quite well with the “mountains” and “valleys” of the satellite record. It makes me wonder…are there other, less powerful, but still impactful phenomena (ocean-driven, solar) that are also driving global temps? I think we all need a lot more humility about these matters. I very much respect the training, abilities and experience of those who are devoted to the science (not the political science) of this. This (climate change) is clearly a “wicked problem”, which Judith Curry has described quite well.
Third warmest November in the UAH data set.
Warmest Novembers are:
1 2023 0.77
2 2024 0.64
3 2025 0.43
4= 2019 0.39
4= 2020 0.39
6 2016 0.35
7 2017 0.22
8 2015 0.21
9 2009 0.14
10= 1990 0.12
11= 2018 0.12
though 2018 ties
So far every month in 2025 has been 2nd, 3rd, or 4th warmest.
Almost certain that 2025 will be the second warmest year on record, well below 2024, but just above 2023.
My simple projection for 2025 is now 0.48 +/- 0.03.
By: Andy Chmilenko (Lanowen)
from Comments on: UAH v6.1 Global Temperature Update for September, 2025: +0.53 deg. C by Andy Chmilenko (Lanowen) Sun Nov 30 2025 17:43:20 (1 day).
In reply to Gordon Robertson.
We did measure the IR intensity, this is the equipment manifest and experiment guide.
https://stuff.lanowen.com/Physics/Labs/Phys%20260L/Lab4/Introduction%20to%20Thermal%20Radiation%20-%20Inverse%20Square%20Law%20-%20Stefan-Boltzmann%20Law%20(low%20and%20high%20temperature).pdf
I don’t know why you are arguing about this stuff and citing my labs, I haven’t read all your comments here but I have a feeling like you are a difficult person.
Go do the experiments and get a life honestly.