National Temperature Index
Time Series
National USHCN monthly temperature updates have been discontinued. The official CONUS temperature record is now based upon nClimDiv. USHCN data for January 1895 to August 2014 will remain available for historical comparison.
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| Dates | USCRN | ClimDiv | USHCN |
|---|---|---|---|
| 189503 - 189505 | -99.99°F | -0.96°F | -0.86°F |
| 189603 - 189605 | -99.99°F | -0.95°F | -1.04°F |
| 189703 - 189705 | -99.99°F | -1.52°F | -1.58°F |
| 189803 - 189805 | -99.99°F | -1.30°F | -1.39°F |
| 189903 - 189905 | -99.99°F | -2.51°F | -2.56°F |
| 190003 - 190005 | -99.99°F | -0.36°F | -0.42°F |
| 190103 - 190105 | -99.99°F | -1.47°F | -1.48°F |
| 190203 - 190205 | -99.99°F | -0.42°F | -0.31°F |
| 190303 - 190305 | -99.99°F | -1.24°F | -1.18°F |
| 190403 - 190405 | -99.99°F | -1.44°F | -1.48°F |
| 190503 - 190505 | -99.99°F | -0.31°F | -0.32°F |
| 190603 - 190605 | -99.99°F | -2.43°F | -2.43°F |
| 190703 - 190705 | -99.99°F | -2.19°F | -2.18°F |
| 190803 - 190805 | -99.99°F | -0.06°F | -0.11°F |
| 190903 - 190905 | -99.99°F | -2.74°F | -2.80°F |
| 191003 - 191005 | -99.99°F | 2.20°F | 2.22°F |
| 191103 - 191105 | -99.99°F | -0.15°F | -0.11°F |
| 191203 - 191205 | -99.99°F | -2.95°F | -2.88°F |
| 191303 - 191305 | -99.99°F | -1.82°F | -1.79°F |
| 191403 - 191405 | -99.99°F | -0.92°F | -0.89°F |
| 191503 - 191505 | -99.99°F | -2.00°F | -1.94°F |
| 191603 - 191605 | -99.99°F | -1.32°F | -1.26°F |
| 191703 - 191705 | -99.99°F | -4.52°F | -4.45°F |
| 191803 - 191805 | -99.99°F | -0.03°F | -0.01°F |
| 191903 - 191905 | -99.99°F | -1.14°F | -1.17°F |
| 192003 - 192005 | -99.99°F | -3.10°F | -3.12°F |
| 192103 - 192105 | -99.99°F | 0.69°F | 0.62°F |
| 192203 - 192205 | -99.99°F | -1.26°F | -1.27°F |
| 192303 - 192305 | -99.99°F | -2.65°F | -2.68°F |
| 192403 - 192405 | -99.99°F | -3.44°F | -3.43°F |
| 192503 - 192505 | -99.99°F | 1.10°F | 1.09°F |
| 192603 - 192605 | -99.99°F | -1.66°F | -1.68°F |
| 192703 - 192705 | -99.99°F | -0.69°F | -0.75°F |
| 192803 - 192805 | -99.99°F | -0.99°F | -1.04°F |
| 192903 - 192905 | -99.99°F | -0.70°F | -0.69°F |
| 193003 - 193005 | -99.99°F | -0.54°F | -0.55°F |
| 193103 - 193105 | -99.99°F | -1.92°F | -1.96°F |
| 193203 - 193205 | -99.99°F | -2.07°F | -2.11°F |
| 193303 - 193305 | -99.99°F | -1.39°F | -1.37°F |
| 193403 - 193405 | -99.99°F | 1.85°F | 1.79°F |
| 193503 - 193505 | -99.99°F | -1.68°F | -1.73°F |
| 193603 - 193605 | -99.99°F | 0.48°F | 0.42°F |
| 193703 - 193705 | -99.99°F | -1.60°F | -1.66°F |
| 193803 - 193805 | -99.99°F | 0.30°F | 0.26°F |
| 193903 - 193905 | -99.99°F | 0.36°F | 0.29°F |
| 194003 - 194005 | -99.99°F | -1.03°F | -1.11°F |
| 194103 - 194105 | -99.99°F | -0.71°F | -0.71°F |
| 194203 - 194205 | -99.99°F | -0.74°F | -0.77°F |
| 194303 - 194305 | -99.99°F | -1.53°F | -1.54°F |
| 194403 - 194405 | -99.99°F | -2.06°F | -2.04°F |
| 194503 - 194505 | -99.99°F | -0.55°F | -0.57°F |
| 194603 - 194605 | -99.99°F | 1.49°F | 1.43°F |
| 194703 - 194705 | -99.99°F | -1.95°F | -2.00°F |
| 194803 - 194805 | -99.99°F | -1.13°F | -1.16°F |
| 194903 - 194905 | -99.99°F | -0.37°F | -0.38°F |
| 195003 - 195005 | -99.99°F | -2.91°F | -2.91°F |
| 195103 - 195105 | -99.99°F | -2.21°F | -2.23°F |
| 195203 - 195205 | -99.99°F | -1.92°F | -1.93°F |
| 195303 - 195305 | -99.99°F | -1.33°F | -1.38°F |
| 195403 - 195405 | -99.99°F | -1.22°F | -1.28°F |
| 195503 - 195505 | -99.99°F | -0.49°F | -0.53°F |
| 195603 - 195605 | -99.99°F | -1.26°F | -1.31°F |
| 195703 - 195705 | -99.99°F | -1.35°F | -1.37°F |
| 195803 - 195805 | -99.99°F | -1.77°F | -1.79°F |
| 195903 - 195905 | -99.99°F | -0.60°F | -0.64°F |
| 196003 - 196005 | -99.99°F | -2.62°F | -2.68°F |
| 196103 - 196105 | -99.99°F | -1.56°F | -1.60°F |
| 196203 - 196205 | -99.99°F | -1.23°F | -1.28°F |
| 196303 - 196305 | -99.99°F | 0.32°F | 0.25°F |
| 196403 - 196405 | -99.99°F | -1.38°F | -1.41°F |
| 196503 - 196505 | -99.99°F | -2.52°F | -2.55°F |
| 196603 - 196605 | -99.99°F | -0.84°F | -0.90°F |
| 196703 - 196705 | -99.99°F | -1.14°F | -1.15°F |
| 196803 - 196805 | -99.99°F | -1.12°F | -1.12°F |
| 196903 - 196905 | -99.99°F | -1.87°F | -1.88°F |
| 197003 - 197005 | -99.99°F | -2.22°F | -2.22°F |
| 197103 - 197105 | -99.99°F | -2.50°F | -2.49°F |
| 197203 - 197205 | -99.99°F | -0.10°F | -0.12°F |
| 197303 - 197305 | -99.99°F | -1.11°F | -1.10°F |
| 197403 - 197405 | -99.99°F | 0.21°F | 0.23°F |
| 197503 - 197505 | -99.99°F | -3.26°F | -3.25°F |
| 197603 - 197605 | -99.99°F | -0.83°F | -0.83°F |
| 197703 - 197705 | -99.99°F | 1.08°F | 1.10°F |
| 197803 - 197805 | -99.99°F | -1.02°F | -1.04°F |
| 197903 - 197905 | -99.99°F | -1.45°F | -1.42°F |
| 198003 - 198005 | -99.99°F | -1.53°F | -1.52°F |
| 198103 - 198105 | -99.99°F | 0.42°F | 0.44°F |
| 198203 - 198205 | -99.99°F | -1.41°F | -1.39°F |
| 198303 - 198305 | -99.99°F | -2.78°F | -2.74°F |
| 198403 - 198405 | -99.99°F | -1.97°F | -1.94°F |
| 198503 - 198505 | -99.99°F | 1.41°F | 1.43°F |
| 198603 - 198605 | -99.99°F | 1.48°F | 1.49°F |
| 198703 - 198705 | -99.99°F | 1.13°F | 1.10°F |
| 198803 - 198805 | -99.99°F | -0.08°F | -0.05°F |
| 198903 - 198905 | -99.99°F | 0.11°F | 0.07°F |
| 199003 - 199005 | -99.99°F | 0.15°F | 0.13°F |
| 199103 - 199105 | -99.99°F | 0.72°F | 0.78°F |
| 199203 - 199205 | -99.99°F | 0.91°F | 0.85°F |
| 199303 - 199305 | -99.99°F | -1.03°F | -1.07°F |
| 199403 - 199405 | -99.99°F | 0.72°F | 0.73°F |
| 199503 - 199505 | -99.99°F | -1.43°F | -1.37°F |
| 199603 - 199605 | -99.99°F | -1.68°F | -1.69°F |
| 199703 - 199705 | -99.99°F | -1.23°F | -1.27°F |
| 199803 - 199805 | -99.99°F | -0.27°F | -0.26°F |
| 199903 - 199905 | -99.99°F | -0.42°F | -0.32°F |
| 200003 - 200005 | -99.99°F | 2.03°F | 2.04°F |
| 200103 - 200105 | -99.99°F | 0.57°F | 0.51°F |
| 200203 - 200205 | -99.99°F | -1.12°F | -1.17°F |
| 200303 - 200305 | -99.99°F | 0.16°F | 0.18°F |
| 200403 - 200405 | -99.99°F | 2.11°F | 2.07°F |
| 200503 - 200505 | -0.58°F | -0.51°F | -0.51°F |
| 200603 - 200605 | 1.31°F | 1.49°F | 1.51°F |
| 200703 - 200705 | 1.60°F | 1.62°F | 1.54°F |
| 200803 - 200805 | -1.39°F | -1.35°F | -1.33°F |
| 200903 - 200905 | -0.05°F | -0.08°F | -0.11°F |
| 201003 - 201005 | 0.28°F | 0.34°F | 0.35°F |
| 201103 - 201105 | -0.37°F | -0.51°F | -0.48°F |
| 201203 - 201205 | 4.33°F | 4.29°F | 4.27°F |
| 201303 - 201305 | -1.36°F | -1.41°F | -99.99°F |
| 201403 - 201405 | -0.45°F | -0.74°F | -99.99°F |
| 201503 - 201505 | 1.48°F | 1.26°F | -99.99°F |
| 201603 - 201605 | 1.88°F | 1.78°F | -99.99°F |
| 201703 - 201705 | 1.82°F | 1.61°F | -99.99°F |
| 201803 - 201805 | 0.74°F | 0.53°F | -99.99°F |
| 201903 - 201905 | -0.81°F | -1.02°F | -99.99°F |
| 202003 - 202005 | 0.92°F | 0.74°F | -99.99°F |