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 |
|---|---|---|---|
| 189505 - 189507 | -99.99°F | -1.60°F | -1.65°F |
| 189605 - 189607 | -99.99°F | 0.76°F | 0.57°F |
| 189705 - 189707 | -99.99°F | -0.37°F | -0.60°F |
| 189805 - 189807 | -99.99°F | -0.41°F | -0.62°F |
| 189905 - 189907 | -99.99°F | -0.71°F | -0.93°F |
| 190005 - 190007 | -99.99°F | 0.47°F | 0.31°F |
| 190105 - 190107 | -99.99°F | 0.69°F | 0.49°F |
| 190205 - 190207 | -99.99°F | -0.56°F | -0.64°F |
| 190305 - 190307 | -99.99°F | -2.14°F | -2.23°F |
| 190405 - 190407 | -99.99°F | -1.68°F | -1.77°F |
| 190505 - 190507 | -99.99°F | -1.55°F | -1.69°F |
| 190605 - 190607 | -99.99°F | -1.50°F | -1.64°F |
| 190705 - 190707 | -99.99°F | -3.22°F | -3.33°F |
| 190805 - 190807 | -99.99°F | -1.62°F | -1.78°F |
| 190905 - 190907 | -99.99°F | -1.35°F | -1.53°F |
| 191005 - 191007 | -99.99°F | -0.71°F | -0.84°F |
| 191105 - 191107 | -99.99°F | 0.29°F | 0.14°F |
| 191205 - 191207 | -99.99°F | -1.45°F | -1.57°F |
| 191305 - 191307 | -99.99°F | -0.81°F | -0.94°F |
| 191405 - 191407 | -99.99°F | 0.27°F | 0.14°F |
| 191505 - 191507 | -99.99°F | -2.84°F | -2.99°F |
| 191605 - 191607 | -99.99°F | -1.29°F | -1.40°F |
| 191705 - 191707 | -99.99°F | -2.35°F | -2.48°F |
| 191805 - 191807 | -99.99°F | 0.21°F | 0.04°F |
| 191905 - 191907 | -99.99°F | -0.03°F | -0.17°F |
| 192005 - 192007 | -99.99°F | -1.46°F | -1.63°F |
| 192105 - 192107 | -99.99°F | 0.45°F | 0.26°F |
| 192205 - 192207 | -99.99°F | 0.18°F | 0.05°F |
| 192305 - 192307 | -99.99°F | -0.82°F | -0.97°F |
| 192405 - 192407 | -99.99°F | -1.80°F | -1.92°F |
| 192505 - 192507 | -99.99°F | 0.07°F | -0.10°F |
| 192605 - 192607 | -99.99°F | -0.40°F | -0.55°F |
| 192705 - 192707 | -99.99°F | -1.37°F | -1.56°F |
| 192805 - 192807 | -99.99°F | -0.98°F | -1.19°F |
| 192905 - 192907 | -99.99°F | -1.27°F | -1.44°F |
| 193005 - 193007 | -99.99°F | -0.36°F | -0.51°F |
| 193105 - 193107 | -99.99°F | 0.72°F | 0.52°F |
| 193205 - 193207 | -99.99°F | 0.03°F | -0.13°F |
| 193305 - 193307 | -99.99°F | 0.92°F | 0.79°F |
| 193405 - 193407 | -99.99°F | 2.66°F | 2.47°F |
| 193505 - 193507 | -99.99°F | -1.22°F | -1.40°F |
| 193605 - 193607 | -99.99°F | 2.37°F | 2.17°F |
| 193705 - 193707 | -99.99°F | 0.51°F | 0.34°F |
| 193805 - 193807 | -99.99°F | -0.46°F | -0.66°F |
| 193905 - 193907 | -99.99°F | 0.89°F | 0.67°F |
| 194005 - 194007 | -99.99°F | 0.27°F | 0.04°F |
| 194105 - 194107 | -99.99°F | 0.11°F | -0.04°F |
| 194205 - 194207 | -99.99°F | -0.94°F | -1.12°F |
| 194305 - 194307 | -99.99°F | -0.34°F | -0.50°F |
| 194405 - 194407 | -99.99°F | -0.20°F | -0.38°F |
| 194505 - 194507 | -99.99°F | -2.23°F | -2.42°F |
| 194605 - 194607 | -99.99°F | -0.95°F | -1.15°F |
| 194705 - 194707 | -99.99°F | -1.37°F | -1.58°F |
| 194805 - 194807 | -99.99°F | -0.50°F | -0.70°F |
| 194905 - 194907 | -99.99°F | 0.47°F | 0.31°F |
| 195005 - 195007 | -99.99°F | -1.72°F | -1.90°F |
| 195105 - 195107 | -99.99°F | -0.89°F | -1.09°F |
| 195205 - 195207 | -99.99°F | 0.55°F | 0.37°F |
| 195305 - 195307 | -99.99°F | -0.08°F | -0.27°F |
| 195405 - 195407 | -99.99°F | -0.29°F | -0.49°F |
| 195505 - 195507 | -99.99°F | -0.50°F | -0.67°F |
| 195605 - 195607 | -99.99°F | 0.47°F | 0.29°F |
| 195705 - 195707 | -99.99°F | -0.38°F | -0.52°F |
| 195805 - 195807 | -99.99°F | -0.26°F | -0.41°F |
| 195905 - 195907 | -99.99°F | 0.20°F | 0.05°F |
| 196005 - 196007 | -99.99°F | -0.50°F | -0.66°F |
| 196105 - 196107 | -99.99°F | -0.72°F | -0.90°F |
| 196205 - 196207 | -99.99°F | -0.52°F | -0.67°F |
| 196305 - 196307 | -99.99°F | -0.16°F | -0.32°F |
| 196405 - 196407 | -99.99°F | 0.11°F | -0.03°F |
| 196505 - 196507 | -99.99°F | -1.17°F | -1.30°F |
| 196605 - 196607 | -99.99°F | -0.19°F | -0.32°F |
| 196705 - 196707 | -99.99°F | -2.02°F | -2.13°F |
| 196805 - 196807 | -99.99°F | -1.41°F | -1.52°F |
| 196905 - 196907 | -99.99°F | -0.48°F | -0.58°F |
| 197005 - 197007 | -99.99°F | 0.00°F | -0.10°F |
| 197105 - 197107 | -99.99°F | -1.24°F | -1.28°F |
| 197205 - 197207 | -99.99°F | -0.95°F | -1.03°F |
| 197305 - 197307 | -99.99°F | -0.78°F | -0.86°F |
| 197405 - 197407 | -99.99°F | -0.28°F | -0.34°F |
| 197505 - 197507 | -99.99°F | -0.78°F | -0.84°F |
| 197605 - 197607 | -99.99°F | -1.34°F | -1.40°F |
| 197705 - 197707 | -99.99°F | 0.89°F | 0.83°F |
| 197805 - 197807 | -99.99°F | -0.43°F | -0.49°F |
| 197905 - 197907 | -99.99°F | -1.23°F | -1.24°F |
| 198005 - 198007 | -99.99°F | 0.34°F | 0.31°F |
| 198105 - 198107 | -99.99°F | -0.34°F | -0.39°F |
| 198205 - 198207 | -99.99°F | -1.15°F | -1.19°F |
| 198305 - 198307 | -99.99°F | -1.58°F | -1.58°F |
| 198405 - 198407 | -99.99°F | -0.64°F | -0.68°F |
| 198505 - 198507 | -99.99°F | 0.16°F | 0.12°F |
| 198605 - 198607 | -99.99°F | 0.41°F | 0.42°F |
| 198705 - 198707 | -99.99°F | 0.90°F | 0.89°F |
| 198805 - 198807 | -99.99°F | 1.04°F | 1.02°F |
| 198905 - 198907 | -99.99°F | -0.32°F | -0.32°F |
| 199005 - 199007 | -99.99°F | -0.47°F | -0.49°F |
| 199105 - 199107 | -99.99°F | 0.39°F | 0.39°F |
| 199205 - 199207 | -99.99°F | -1.32°F | -1.32°F |
| 199305 - 199307 | -99.99°F | -1.17°F | -1.12°F |
| 199405 - 199407 | -99.99°F | 0.49°F | 0.46°F |
| 199505 - 199507 | -99.99°F | -1.35°F | -1.28°F |
| 199605 - 199607 | -99.99°F | 0.24°F | 0.17°F |
| 199705 - 199707 | -99.99°F | -0.96°F | -0.96°F |
| 199805 - 199807 | -99.99°F | 0.77°F | 0.80°F |
| 199905 - 199907 | -99.99°F | -0.37°F | -0.29°F |
| 200005 - 200007 | -99.99°F | 0.76°F | 0.77°F |
| 200105 - 200107 | -99.99°F | 0.92°F | 0.89°F |
| 200205 - 200207 | -99.99°F | 0.74°F | 0.72°F |
| 200305 - 200307 | -99.99°F | 0.24°F | 0.20°F |
| 200405 - 200407 | -99.99°F | -0.29°F | -0.27°F |
| 200505 - 200507 | 0.11°F | 0.10°F | 0.10°F |
| 200605 - 200607 | 1.81°F | 1.89°F | 1.90°F |
| 200705 - 200707 | 0.94°F | 1.04°F | 1.05°F |
| 200805 - 200807 | -0.25°F | -0.24°F | -0.20°F |
| 200905 - 200907 | -0.40°F | -0.32°F | -0.29°F |
| 201005 - 201007 | 0.40°F | 0.43°F | 0.47°F |
| 201105 - 201107 | 0.47°F | 0.44°F | 0.46°F |
| 201205 - 201207 | 2.39°F | 2.33°F | 2.35°F |
| 201305 - 201307 | 0.62°F | 0.56°F | -99.99°F |
| 201405 - 201407 | 0.29°F | 0.12°F | -99.99°F |
| 201505 - 201507 | 0.86°F | 0.79°F | -99.99°F |
| 201605 - 201607 | 1.33°F | 1.18°F | -99.99°F |
| 201705 - 201707 | 1.05°F | 0.95°F | -99.99°F |
| 201805 - 201807 | 3.01°F | 2.91°F | -99.99°F |
| 201905 - 201907 | -0.16°F | -0.32°F | -99.99°F |